722 篇解读总目录

按 17 个学科 → 372 个结果族组织。每行:文章标题 | 验证状态 | 一句话结论。先看首页总览。

Number theory

001 · Milne’s rationality conjecture and algebraic specialization

Proves Milne’s rationality conjecture for abelian varieties over \overline{\mathbb Q} with good …

002 · The full BSD formula from low Selmer corank

Proves the full Birch–Swinnerton-Dyer leading-term formula for every elliptic curve over ℚ whose ful…

003 · The quasi-Riemann hypothesis

Proves that every Dirichlet L-function, including \zeta(s), is zero-free in $`\Re s\gt 7/…

004 · Hilbert’s tenth problem over ℚ

Proves that no algorithm decides whether an integer-coefficient polynomial in an arbitrary number of…

005 · Irrationality of Catalan’s constant

Proves that Catalan’s constant G=\sum_{j\ge0}(-1)^j/(2j+1)^2 is irrational. ([Lean](lean/docs/00…

006 · Goldfeld’s conjecture: densities and mean analytic rank

Proves Goldfeld’s conjecture for quadratic twists of every elliptic curve over ℚ: analytic ranks zer…

007 · Ordinary two-point correlations and the corrected Elliott conjecture

Proves the ordinary two-point Chowla conjecture, with a bound O(X/(\log X)^c) for Liouville corr…

008 · The Deligne–Drinfeld conjecture

Proves that the rational Grothendieck–Teichmüller Lie algebra, with the Ihara bracket, is freely gen…

009 · Function-field reconstruction from Milnor K-theory and Galois data

Reconstructs function fields of transcendence degree at least two over algebraically closed constant…

010 · Unrestricted pro-modularity at the prime two

Every continuous odd absolutely irreducible two-dimensional 2-adic representation of $`G_{\mathbb Q}…

011 · Prime-factor statistics of $p-1$

Proves that the normalized ordered logarithms of the prime factors of p-1, counted with multipli…

012 · Independent largest prime factors of consecutive integers

Resolves the Erdős–Pomerance joint Dickman conjecture: the logarithmic sizes of the largest prime fa…

013 · Ostmann’s inverse Goldbach conjecture

Proves that no finite modification of the primes can be written as A+B with $`A,B\subseteq\mathb…

014 · Restricted geometric Langlands, global Arthur enhancements, and generic Ramanujan

Proves the restricted geometric Langlands equivalence for connected reductive groups on smooth proje…

015 · Torus-packet equidistribution in prime, quartic, and sextic degrees

Proves Haar equidistribution without escape of mass for complete volume-weighted torus packets from …

016 · Zilber–Pink in abelian varieties and the Siegel threefold

Proves the abelian Zilber–Pink conjecture over \overline{\mathbb Q}: every irreducible subvariet…

017 · The irrationality exponent of π is 2

Proves that the irrationality exponent of π is exactly 2: for every ε > 0 and all s…

018 · The Margulis–Platonov conjecture over global fields

Proves the Margulis–Platonov conjecture over every global field, including function fields of charac…

019 · The local p-adic section conjecture and global consequences

Proves that rational points on every smooth proper geometrically connected curve of genus at least t…

020 · Squarefree quartics and power-free polynomial values

Proves the squarefree-values conjecture for irreducible integer quartics with no fixed prime-square …

021 · A quadratic bound for Jacobsthal’s function

Answers Jacobsthal’s quadratic-bound question: every interval of Ck^2 consecutive integers conta…

022 · The weak inhomogeneous Duffin–Schaeffer conjecture

Proves that for every real shift γ and finite-valued \psi:\mathbb N\to[0,\infty), diverge…

023 · Patterson’s first moment for cubic Gauss sums

Proves unconditionally the all-primary-prime form of Patterson’s first-moment asymptotic: normalized…

024 · An asymptotic formula for the number of totients

Gives an asymptotic equivalent for the number V(x) of distinct totient values up to x, wi…

025 · Short Egyptian fractions

Every rational a/b with 1\le a\lt b is a sum of O(\log\log b) distinct positive unit fra…

026 · Positive lower density of large prime gaps

For every fixed C > 0, a positive proportion of consecutive prime gaps exceed $C\log p_n…

027 · Potential integral density on curve character varieties

Resolves the determinant-one curve case of Litt’s integral-density question. For every smooth connec…

028 · Uniformly bounded components of Gaussian-prime graphs

Proves the Gaussian moat conjecture: no infinite walk through distinct Gaussian primes can have unif…

029 · Primitive roots for every admissible integer base

Proves the infinitude assertion in Artin’s primitive root conjecture for every integer a that…

030 · Modularity of elliptic curves over imaginary quadratic fields

Proves the modularity conjecture for elliptic curves over imaginary quadratic fields: every elliptic…

031 · Uchida’s conjecture for open homomorphisms of Galois groups

Proves Uchida’s conjecture: every continuous open homomorphism between Galois groups of possibly inf…

Algebraic and complex geometry

032 · Hodge and Kuga–Satake results for all projective K3 surfaces

Proves the rational Hodge conjecture for every complex CM abelian variety, in every dimension and co…

033 · Iitaka subadditivity, variation, and logarithmic additivity

Proves Campana’s orbifold Iitaka subadditivity conjecture for smooth Fujiki-class-\mathcal C man…

034 · Log abundance for compact Kähler spaces under logarithmic Iitaka subadditivity

Using logarithmic Iitaka subadditivity, proves log abundance in every dimension for normal compact K…

035 · Log-canonical threefold abundance in numerical dimension one

Proves log abundance for projective log canonical threefold pairs over algebraically closed fields o…

036 · Numerical semiampleness and generalized minimal models

Proves numerical semiampleness for nef adjoints K_X+B+M with K_X+B pseudo-effective and M…

037 · The ordinary-double-point volume gap

Proves the ordinary-double-point volume-gap conjecture: every singular complex algebraic klt germ of…

038 · Fujita’s freeness conjecture

Proves Fujita’s freeness conjecture at its sharp bound in every dimension: for a smooth projective c…

039 · Nagata’s conjecture and maximal Seshadri constants

Proves Nagata’s strict inequality \sum_i m_i\lt d\sqrt r for every nonzero effective plane curve…

040 · Bloch’s conjecture for complex surfaces

Proves Bloch’s conjecture: for every smooth connected projective complex surface S with $`p_g…

041 · Hyperkähler SYZ and projective-space bases

Proves the strong hyperkähler SYZ conjecture: every holomorphic line bundle with nonzero nef isotrop…

042 · Oka classification for minimal compact complex surfaces: Kodaira dimension zero and class VII

Proves that every complex K3 surface is Oka, including nonprojective surfaces. More generally, every…

043 · P = W for fixed-determinant SLn moduli spaces

Proves P_k=W_{2k}=W_{2k+1} on the full rational cohomology of smooth coprime fixed-determinant, …

044 · The equivariant cohomological Hikita conjecture

Proves the equivariant cohomological Hikita correspondence for every finite quiver, including loops …

046 · Shafarevich counterexamples in dimension two and with large fundamental group

Constructs a smooth projective complex fourfold with large fundamental group whose universal cover c…

047 · Zariski cancellation and affine fibrations over the complex numbers

Constructs an integral complex affine fourfold X\not\cong\mathbb A^4 with $`X\times\mathbb A^1\c…

048 · A characteristic-zero counterexample to Lipman–Zariski

Constructs a singular normal affine complex surface with free rank-two tangent sheaf, disproving the…

049 · A stable-coordinate counterexample in four variables

Constructs a polynomial in four complex variables that is not a coordinate but becomes one after adj…

050 · A counterexample to Griffiths’ positivity conjecture

Constructs ample rank-two bundles on \mathbb P^1\times\mathbb P^1 with no smooth Hermitian metri…

051 · Kobayashi’s canonical-ampleness conjecture

Every compact connected Kähler manifold of positive complex dimension with no nonconstant entire cur…

052 · Tangent splittings and product decompositions

A splitting of the tangent bundle of a compact Kähler manifold into two integrable holomorphic subbu…

053 · A counterexample to Pixton completeness in Chow

Constructs a tautological relation on a moduli space of stable pointed curves that vanishes in ratio…

054 · Irrational cubic fourfolds with Hodge-theoretic and categorical K3 associations

For every sufficiently large admissible Hassett discriminant, a very general smooth complex cubic fo…

055 · Gepner symmetry and large-volume stability on threefolds

Proves Toda’s Gepner conjecture for every smooth complex quintic threefold, constructing a numerical…

056 · Termination of projective and Kähler fourfold minimal model programs

Proves termination of every existing generalized log canonical flip sequence on globally Weil ℚ-fact…

057 · Fundamental groups of special complex varieties and root orbifolds

Proves Campana’s abelianity conjecture: special compact Kähler manifolds have virtually abelian fund…

058 · Semialgebraic universal covers and bounded domains

Proves the Kollár–Pardon conjecture: the semialgebraic universal covers of connected normal projecti…

059 · Counterexamples to Zariski’s multiplicity conjecture

Disproves Zariski’s multiplicity conjecture by constructing reduced holomorphic hypersurface germs t…

060 · The Global Spherical Shell conjecture

Every connected minimal compact complex surface of class VII with b_2\gt 0 contains a global sph…

062 · Projective contact classification and the LeBrun–Salamon conjecture

Proves the LeBrun–Salamon conjecture: every closed connected positive quaternionic-Kähler manifold o…

063 · The generalized Mukai conjecture

Proves the generalized Mukai conjecture: every positive-dimensional smooth complex projective Fano m…

064 · Topological triviality of μ-constant surface singularities

Proves topological right-triviality for every holomorphic one-parameter family of isolated hypersurf…

065 · Virasoro constraints for complete intersections and projective-bundle towers

Proves the full ordinary unreduced descendant Virasoro conjecture for smooth complete intersections …

066 · Bounded klt complements for Fano contractions

Proves the finite-rational-coefficient form of Shokurov’s bounded-klt-complement conjecture for ϵ…

067 · The Campana–Peternell conjecture in dimension six

Proves the Campana–Peternell conjecture in complex dimension six: every smooth connected complex pro…

068 · Anticanonical nonvanishing in every dimension

If X is a smooth connected complex projective variety and -K_X admits a smooth Hermitian …

069 · Global quantum geometric Langlands at irrational level

Proves the unramified de Rham quantum geometric Langlands equivalence for every connected simple com…

Real and complex analysis

071 · Koebe’s circle-domain conjecture

Resolves the existence part of Koebe’s circle-domain conjecture: every domain in the Riemann sphere …

072 · Brennan’s conjecture and the integral-means spectrum

Proves Brennan’s conjecture: for every conformal bijection ϕ from a simply connected plane do…

073 · The Falconer distance conjecture

Resolves the Falconer distance conjecture in every dimension d ≥ 2: every compact set $`E\sub…

074 · Kakeya in three and four dimensions

Resolves the Kakeya maximal conjecture in three dimensions and the Hausdorff-dimension conjecture in…

075 · The $L\log L$ Fourier-convergence conjecture

Proves that the ordinary symmetric Fourier partial sums of every complex-valued function in $`L\log …

076 · Real ultraflat Littlewood polynomials and unbounded binary merit factors

Constructs polynomials with N consecutive coefficients in {-1,1} whose modulus is $`(1+…

077 · Fourier restriction for positively curved surfaces

Proves the diagonal Fourier extension conjecture for positively curved surfaces in three dimensions.…

078 · The three-dimensional Bochner–Riesz conjecture

Resolves the three-dimensional Bochner–Riesz conjecture in its strict range: the Bochner–Riesz multi…

079 · Local smoothing in three dimensions

Resolves Sogge’s local smoothing conjecture for the Euclidean wave equation in three spatial dimensi…

080 · The exact Sobolev endpoint for Schrödinger convergence

Proves almost-everywhere convergence e^{it\Delta}f\to f as t\downarrow0 for every $`f\in H^{…

081 · Riesz transforms and rectifiability in higher codimension

Resolves the remaining higher-codimension Riesz-transform rectifiability problem: for d ≥ 4 a…

082 · Annular variation and dyadic absolute bounds for the triangular Hilbert transform

Proves maximal and annular r-variation bounds, for every r > 2, from complex $`L^3(…

083 · Hilbert transforms along Lipschitz directions

Proves a uniform strong L2 bound for the planar Hilbert transform along any Lipsch…

084 · The geometric case of the Erdős similarity conjecture

For every fixed q\in(0,1), constructs compact subsets of [0,1] with measure arbitrarily clos…

085 · Endpoint Sobolev regularity of centered disk averages

Resolves the planar centered-disk case of the Hajłasz–Onninen maximal-function regularity problem. F…

086 · An L3 bound for the trilinear Hilbert transform

Proves that the principal-value trilinear Hilbert transform with shifts x-t, x-2t, x-3t …

Convex and metric geometry

087 · The Mahler conjectures, functional inequalities and polar-product symplectic width

Resolves the symmetric and nonsymmetric geometric Mahler conjectures in every dimension, with Hanner…

088 · Sharp projection-body inequalities and a counterexample to simplex maximization

Proves Petty’s projection-volume conjecture in the remaining dimensions n ≥ 4: ellipsoids uni…

089 · Bounded-distortion L1 embeddings of planar and bounded-treewidth graphs

Resolves the planar and bounded-treewidth cases of the Gupta–Newman–Rabinovich–Sinclair conjecture. …

090 · Triangular-lattice optimality, long-range Riesz and Coulomb energies, and spherical logarithmic energy

Proves that the triangular lattice minimizes the lower limit of energy per particle for every nonneg…

091 · Logarithmic and Lp Brunn–Minkowski inequalities and the B-conjecture

Proves the logarithmic Brunn–Minkowski inequality for origin-symmetric convex bodies in every dimens…

092 · The optimal order of convex-body covering density

Determines the optimal worst-case covering density as \Theta(n\log n), for both lattice and unre…

093 · Dimension-free logarithmic Sobolev inequality for subgaussian log-concave measures

Proves a dimension-free logarithmic Sobolev inequality for centered log-concave densities with unifo…

094 · Subpolynomial dimension reduction in Lp

For every fixed 1\lt p\lt \infty and distortion D > 1, every n-point subset of …

095 · Hyperbolicity cones without semidefinite lifts

Disproves the Projected Lax conjecture: some hyperbolicity cones are not spectrahedral shadows. The …

096 · The Gaussian propeller conjecture in every dimension

Proves that the sum of squared Gaussian first moments of any finite measurable partition is at most …

097 · The Euclidean Steinitz–Bergström bound

Proves that any finite sequence in the Euclidean unit ball of ℝd admits signs keep…

098 · Compact counterexamples to bi-Lipschitz dimension reduction

Every infinite-dimensional real Banach space contains a compact doubling set that admits no bi-Lipsc…

099 · The sharp exponential scale of edit-distance distortion

Determines the least distortion of embedding edit distance on words of length at most d into …

100 · Cylinder coverings below the half-area bound

Covers the entire closed regular tetrahedron by finitely many cylinders with compact triangular perp…

101 · The sharp simplex conjecture for isotropic constants

Proves that simplices uniquely maximize the isotropic constant among convex bodies in every dimensio…

Theoretical computer science

102 · The Unique Games Conjecture and optimal approximation thresholds

Proves Khot’s Unique Games Conjecture. Independent direct reductions also establish NP-hardness, on …

103 · Exact derandomization of logarithmic space: $\mathsf L=\mathsf{RL}=\mathsf{BPL}$

Proves \mathsf L=\mathsf{RL}=\mathsf{BPL}, resolving derandomization for bounded-error logarithm…

104 · Quasipolynomial algorithms for mean-payoff, stochastic and parity games

Gives deterministic algorithms using 2^{O((\log(L+2))^2)} bit operations, for complete binary in…

105 · Perfect completeness for 2-to-1 games

Proves Khot’s 2-to-1 Games Conjecture with perfect completeness: for every fixed rational $`\delta\i…

106 · Hardness of coloring three-colorable graphs

It is NP-hard to color a three-colorable graph using any fixed number c ≥ 3 of colors. More s…

107 · Matrix multiplication with exponent at most 9/4

Proves \omega\le9/4 over ℂ, giving O_\varepsilon(n^{9/4+\varepsilon}) arithmetic operations …

108 · A cubic permanent–determinant lower bound

Proves an \Omega(n^3) lower bound for the border determinantal complexity of the n\times n p…

109 · Integer multiplication below $n\log n$

Multiplies two n-bit integers exactly at every input length in deterministic worst-case time …

110 · Optimal-order randomized k-server on arbitrary metrics

Establishes a randomized competitive ratio O(\log^2(k+1)) for k-server on every metric sp…

111 · One-sample matroid prophet inequalities against an almighty adversary

For every finite matroid known in advance, gives a distribution-independent online rule using one in…

112 · Beyond the square-root exponent for depth-three circuits

Constructs a single language in deterministic polynomial time whose n-bit membership function…

113 · Approximate counting and entropy of perfect matchings

Gives a fully polynomial randomized approximation scheme for counting perfect matchings in arbitrary…

114 · Approximate counting of common integer polymatroid bases

Gives a fully polynomial randomized approximation scheme for counting common integer bases of two in…

115 · Sampling and counting contingency tables with arbitrary margins

For nonnegative integer matrices with prescribed row and column sums, gives exact uniform sampling i…

116 · Uniform black-box noncommutative identity testing across characteristics

For each characteristic, constructs in deterministic polynomial bit time a polynomial-dimensional ma…

117 · Uniform sparsest cut: hardness and semidefinite gaps

Proves that approximating Uniform Sparsest Cut within any fixed constant factor is NP-hard, even wit…

118 · Bin packing and unbounded configuration-LP gaps

Disproves the modified integer round-up conjecture of Scheithauer and Terno: the integral bin-packin…

119 · The Courtade–Kumar and Hellinger conjectures

Proves the Courtade–Kumar conjecture: among Boolean functions of independent uniform bits, a single …

120 · Almost-linear-time exact matching and prescribed-degree factors in general graphs

Gives a randomized algorithm finding an exact maximum-cardinality matching in any simple undirected …

121 · Almost-linear approximation of edit distance

For every fixed rational \varepsilon\in(0,1), gives a randomized (1+\varepsilon) approximati…

122 · Quantitative trace-reconstruction bounds with a uniform decoder

At every fixed deletion probability in (0,1), reconstructing an arbitrary length-n binary…

124 · Polynomial-time scheduling on three identical machines

Resolves the three-processor unit-job scheduling problem of Garey and Johnson: a deterministic polyn…

125 · The metric k-median approximation threshold and recovery

Gives a deterministic polynomial-time (1+2/e+\varepsilon)-approximation for finite rational metr…

126 · Exponential semidefinite complexity of perfect matching

Proves that every exact semidefinite lift of the perfect matching polytope has exponential size, ans…

127 · Average sensitivity of polynomial threshold functions

Proves that a degree-at-most-d polynomial threshold function on the uniform n-dimensio…

128 · A factor-two approximation for shortest common superstring

Gives a deterministic polynomial-time algorithm constructing a common superstring of length at most …

129 · Exponential state costs for two-way automata

Proves exponential lower bounds both for complementing two-way nondeterministic finite automata and …

130 · Exact Fourier transforms below $n\log n$

Gives a deterministic length-n discrete Fourier transform algorithm using $`O(n(\log n)^{1-\d…

131 · Rapid mixing of graph switches for every degree sequence

Resolves the simple-undirected Kannan–Tetali–Vempala conjecture: the lazy edge-switch chain mixes in…

132 · A superquadratic separation of sensitivity and block sensitivity

Constructs total Boolean functions with block sensitivity $`\mathop{\mathrm{bs}}\nolimits (f)\ge s(f…

133 · The computational complexity of Weisfeiler–Leman refinement

Proves unconditional n^{\Omega(k)} deterministic time lower bounds for joint and separate k</…

134 · Generalized star height at most three

Every regular language over a finite alphabet has a generalized regular expression with at most thre…

135 · Homogeneous depth-five lower bounds for iterated matrix multiplication

Over every characteristic-zero field, the (1,1) entry of a product of n independent $`n\t…

136 · A quasilinear PCP theorem for PPAD

Resolves the quasilinear PCP-for-PPAD conjecture. An End-of-Line instance of length N reduces…

137 · One-tape time simulation in two-fifths-power space

Determines the halting and finite-control outcome of a fixed deterministic one-writable-tape machine…

138 · Subset Sum in $O(2^{0.49n})$ time

Gives a uniform randomized classical algorithm for worst-case Subset Sum in ordinary $O(2^{0.49n})…

139 · Subpolynomial query complexity for log-concave sampling

For C2 potentials with a supplied minimizer and I\preceq\nabla^2V\preceq2I, pr…

140 · Memory–sample lower bounds for noiseless Gaussian regression

For fixed A > 0, a one-pass learner with Ad^2 persistent bits needs $`\Omega_A(d\log(1…

141 · Existential–universal real sentences in the counting hierarchy

Proves that the existential theory of the reals lies in the counting hierarchy. More generally, trut…

142 · Deterministic polynomial factorization over prime fields

Gives a uniform deterministic algorithm that completely factors every nonzero dense degree-n …

Dynamical systems and ergodic theory

143 · Hilbert’s sixteenth problem: uniform bounds for limit cycles

Resolves the uniform boundedness assertion in Hilbert’s sixteenth problem: the number of isolated pe…

144 · Banach’s simple Lebesgue-spectrum problem

Resolves the probability-preserving form of Banach’s simple Lebesgue-spectrum problem within smooth …

145 · Rokhlin’s multiple-mixing problem

Proves that every invertible mixing probability-preserving transformation is mixing of all finite or…

146 · Positive metric entropy for the standard map

Proves that the standard sine map on the two-dimensional torus has positive metric entropy with resp…

147 · The near-boundary Birkhoff conjecture

Resolves the near-boundary Birkhoff conjecture for smooth strictly convex planar billiards of positi…

148 · The entropy-rate dimension formula for self-similar measures

For every self-similar measure on the line generated by finitely many contracting similarities, prov…

149 · Classwise permanence for weakly reversible mass-action systems

Proves the permanence conjecture for every finite weakly reversible mass-action system with fixed po…

150 · Weak mixing of triangular billiards with an irrational angle

Proves that the billiard flow in every nondegenerate Euclidean triangle with at least one angle irra…

151 · A C1 counterexample to the entropy conjecture

Constructs a noninvertible C1 self-map of a compact smooth manifold with zero topo…

152 · Zero entropy does not guarantee a smooth positive-volume model

Constructs a zero-entropy ergodic invertible transformation of a standard nonatomic probability spac…

153 · Arithmetic classification and non-Pisot singularity for Bernoulli convolutions

Classifies singular and absolutely continuous unbiased Bernoulli convolutions for every $`\lambda\in…

154 · Pointwise multiple ergodic averages for mixing transformations

Proves almost-everywhere convergence of consecutive multiple ergodic averages of every finite length…

Combinatorics

155 · A counterexample to periodic tiling in dimension three

Constructs a finite translational tile in ℤ3 that tiles space but admits no fully periodi…

156 · Borsuk’s conjecture fails in dimension nine

Constructs a compact subset of ℝ9 that cannot be covered by ten sets of strictly smaller …

157 · Graph coloring, clique minors, and Colin de Verdière invariants

Disproves Hadwiger’s conjecture even for fractional coloring: arbitrarily large finite simple graphs…

158 · The Euclidean plane cannot be colored with five colors

Proves that every five-coloring of the Euclidean plane has a monochromatic pair at distance one, wit…

159 · Erdős’s reciprocal-sum conjecture and quasipolynomial Szemerédi bounds

Proves Erdős’s conjecture that every set of positive integers with divergent reciprocal sum contains…

160 · Superexponential van der Waerden numbers

Resolves Erdős’s superexponential-growth question for van der Waerden numbers. If W_r(k) is the …

161 · Counterexamples to Sidorenko’s conjecture and the forcing conjecture

Disproves Sidorenko’s conjecture with a connected bipartite pattern on 35 vertices and 66 edges that…

162 · Counterexamples to Ryser’s covering conjecture

Disproves Ryser’s covering conjecture by constructing intersecting (q+1)-partite, (q+1)-unif…

164 · Hindman’s finite sums and products conjecture

Proves Hindman’s finite sums and products conjecture: every finite coloring of the positive integers…

165 · The Harary–Hill and Zarankiewicz crossing-number formulas

Resolves the Harary–Hill conjecture and Turán’s brickyard problem in the Zarankiewicz formulation, d…

166 · The higher-dimensional Erdős distinct-distances conjecture

For every fixed d ≥ 3, any n ≥ 2 distinct points in ℝd determine at …

167 · Planar distinct distances and unit-distance bounds

Proves the weak pinned Erdős distance conjecture: for every fixed ε > 0, all but o(n) …

168 · Combinatorial invariance of Kazhdan–Lusztig polynomials

Resolves the full combinatorial invariance conjecture: isomorphic Bruhat intervals in arbitrary Coxe…

169 · Shareshian–Wachs elementary positivity

Resolves the elementary-positivity part of the Shareshian–Wachs conjecture: the chromatic quasisymme…

170 · Sharp logarithmic exponents for off-diagonal Ramsey numbers

For every fixed integer s ≥ 5, proves r(s,t)=t^{s-1}/(\log t)^{s-2+o(1)} as $t\to\infty…

171 · The hypercube Ramsey conjecture

Resolves the Burr–Erdős hypercube Ramsey conjecture: the two-color Ramsey number of the n-dim…

172 · Classification of finite Euclidean Ramsey configurations

Classifies finite point configurations that occur monochromatically, at their original scale, in eve…

173 · Seymour’s second-neighborhood conjecture

Proves Seymour’s second-neighborhood conjecture: every nonempty finite oriented graph has a vertex w…

174 · Deterministic construction of strong thin spanning trees

Resolves the strong thin-tree conjecture constructively. Every finite loopless k-edge-connect…

175 · Talagrand’s expectation thresholds, discrete convexity, and graph decompositions

Proves that integral and fractional expectation thresholds differ by at most a universal factor, and…

176 · The second Kahn–Kalai conjecture with an edge-count bound

Proves the second Kahn–Kalai conjecture: for every finite simple graph H with h ≥ 1 ed…

177 · Bounded-degree coboundary expanders

Constructs arbitrarily large finite d-dimensional simplicial complexes, for every d ≥ …

178 · Deterministic nonbipartite Ramanujan graphs in every fixed degree

For every fixed d ≥ 3, constructs a simple d-regular nonbipartite Ramanujan graph on e…

179 · The circulant Hadamard and Barker-sequence conjectures

Proves that real circulant Hadamard matrices exist exactly in orders 1 and 4, resolving the circulan…

180 · Barnette’s Hamiltonian-cycle conjecture

Proves that every finite simple cubic bipartite planar 3-vertex-connected graph has a Hamiltonian cy…

181 · The Erdős–Gallai cycle-decomposition conjecture

Proves that the edges of every finite simple undirected graph on n vertices can be partitione…

182 · Power savings for intersective polynomial differences and prime arguments

For every fixed intersective integer polynomial h of degree k ≥ 2 with positive leadin…

183 · Power savings for planar halving lines and k-sets

Improves the planar halving-line bound to O(n^{4/3-\varepsilon}) for sets with no three collinea…

184 · Correspondence coloring with a fixed forbidden subgraph

Proves the Alon–Krivelevich–Sudakov coloring conjecture in correspondence-coloring form: graphs avoi…

185 · Counterexamples to infinite matroid intersection and packing/covering

Disproves the unrestricted infinite matroid intersection and packing/covering conjectures in ZFC, us…

186 · Uniform influence and sharp thresholds for graph and hypergraph properties

Proves the Friedgut–Kalai threshold-width conjectures for graphs and fixed-uniformity hypergraphs. F…

187 · Snaky in 21 Maker moves

Settles the Snaky achievement problem: Maker can force the six-cell Snaky shape within 21 of its own…

188 · The sharp terminal leave in random triangle removal

Starting from the complete graph on n vertices, repeatedly delete a uniformly chosen remainin…

189 · Cycle–clique Ramsey numbers

Proves the Erdős–Faudree–Rousseau–Schelp conjecture: R(C_m,K_n)=(m-1)(n-1)+1 for every $`m\ge n\…

190 · Polynomial removal fails for ordered binary matrices

Disproves polynomial ordered binary matrix removal with one fixed 66\times66 zero–one pattern. M…

191 · A power improvement in the Heilbronn triangle lower bound

For every sufficiently large n, constructs n points in the unit square such that every…

192 · Boolean functions violate the square-root degree bound by arbitrary factors

Disproves the proposed square-root bound relating a Boolean function’s linear Fourier coefficients t…

Algebra

193 · Serre’s intersection-multiplicity conjecture

Proves strict positivity of Serre’s intersection multiplicity \chi^R(M,N) for nonzero finitely g…

194 · Lech’s multiplicity conjecture

Proves e(R)\le e(S) for every flat local homomorphism of nonzero Noetherian local rings, where <…

195 · A counterexample to the small Cohen–Macaulay module conjecture

Constructs a three-dimensional complete Noetherian normal local domain over ℂ with no nonzero finite…

196 · A counterexample to Kaplansky’s zero-divisor conjecture

Constructs a finitely presented torsion-free group G whose group algebra \mathbb F_2[G] h…

197 · A torsion-free group algebra that is not directly finite

Constructs a finitely presented torsion-free nonsofic group whose group algebra over 𝔽2 i…

198 · A counterexample to finitistic-dimension finiteness

Constructs a finite-dimensional complex algebra whose finite-dimensional modules have unbounded fini…

Constructs finite-dimensional algebras over a characteristic-two rational-function field that dispro…

200 · Eisenbud–Green–Harris and lex-plus-powers

Proves the Eisenbud–Green–Harris and lex-plus-powers conjectures over every characteristic-zero fiel…

201 · A counterexample to Kurosh’s division-ring problem

Constructs a countable characteristic-zero division ring that is algebraic over its center and gener…

202 · The blockwise Alperin weight conjecture

Proves the numerical blockwise Alperin weight conjecture for every prime and every finite group: the…

203 · Donovan’s conjecture over fields and complete mixed-characteristic DVRs

Proves Donovan’s conjecture: over each fixed algebraically closed field of characteristic p, …

204 · Tensor saturation for even spin groups

Proves saturation factor one for \mathop{\mathrm{Spin}}\nolimits (2n), n ≥ 2: for three d…

205 · Saxl’s conjecture and universal tensor squares

Proves Saxl’s conjecture: the tensor square of every staircase representation contains every irreduc…

206 · Finite lattice representation and undecidability

Some finite lattices are not congruence lattices of any finite algebra, answering the finite lattice…

207 · The ℓ¹-Bass conjecture for all discrete groups

Proves the ℓ1-Bass conjecture for every discrete group: Hattori–Stallings traces o…

208 · Finite symmetric tensor categories and the Verlinde tower

Proves that every finite symmetric tensor category over an algebraically closed field k of ch…

209 · Integral counterexamples to Gersten’s conjecture

Disproves unrestricted integral Gersten injectivity in degrees 3 and 5. Two explicit two-dimensional…

210 · Foulkes’ conjecture for sixth powers and quadratic stabilization

Proves the sixth case of Foulkes’ conjecture: $`\mathop{\mathrm{Sym}}\nolimits ^6(\mathop{\mathrm{Sy…

Probability and statistical mechanics

211 · The geometric phase diagram, diffusion, and spectra of random planar maps

Critical Fortuin–Kasteleyn planar maps converge to Liouville quantum gravity spheres for $`0\lt q\le…

212 · Planar first-passage geometry and the absence of bigeodesics

Proves that planar first-passage percolation has no doubly infinite geodesic for iid nonnegative non…

213 · Critical percolation on every quasi-transitive graph

Resolves the Benjamini–Schramm criticality conjecture for bond percolation on every infinite connect…

214 · The Benjamini–Schramm nonuniqueness conjecture

Proves p_c\lt p_u for Bernoulli bond percolation on every infinite connected locally finite nona…

215 · Canonical $O(3)$ continuum limit and exact $O(4)$ mass asymptotics

Constructs the canonical continuum limit of the two-dimensional nearest-neighbor O(3) model: a n…

216 · Critical and near-critical XY scaling and BKT universality

For the square-lattice nearest-neighbor cosine XY model, proves critical axis correlations $`C_{\bet…

217 · The low-temperature Sherrington–Kirkpatrick fluctuation law

For every fixed inverse temperature β > 1, determines the fluctuation scale and limiting l…

218 · Conformal universality for weakly interacting and random-bond Ising models

Weak finite-range square-symmetric even multispin perturbations of the square-lattice Ising model pr…

219 · GOE bulk universality for regular graphs with weak Anderson disorder

For every fixed degree d ≥ 3, the bulk adjacency-eigenvalue point process of a uniform simple…

220 · Directional zero–one laws beyond iid environments and iid ballisticity

On ℤd, d ≥ 3, directional escape has probability zero or one for iid strict…

221 · The Mézard–Parisi formula for diluted spin glasses

Proves the Mézard–Parisi hierarchical cavity formula for Poisson-diluted even-arity Ising models sat…

222 · Perceptron free energies and microscopic jamming exponents

Determines finite-temperature variational free energies for Gaussian Ising perceptrons with bounded …

223 · Random-cluster interfaces: critical, disordered, thermal, and natural-time scaling

Proves chordal SLEκ limits for critical square-lattice random-cluster interfaces f…

224 · Critical and quenched near-critical universality for Poisson–Voronoi percolation

Proves Cardy’s formula for annealed critical Poisson–Voronoi crossing probabilities in every bounded…

225 · Gaussian free field limits throughout the balanced six-vertex regime

The balanced square-lattice six-vertex height field with a=b=1 and 0\lt c\le2 converges to a…

226 · The double-dimer loop ensemble converges to CLE4

Resolves the half-plane Temperleyan form of the double-dimer scaling-limit conjecture: the complete …

227 · Critical SK autocorrelation processes and dynamics across the temperature transition

For zero-field Gaussian SK heat-bath dynamics with rate-one updates per spin, proves worst-start cut…

228 · Continuum phase transitions for radial pair potentials

Constructs stable distance-dependent pair interactions for three-dimensional classical particles wit…

229 · Exact three- and four-state reconstruction thresholds and four-state tree capacity

Proves the exact reconstruction threshold d\lambda^2\gt 1, with nonreconstruction at equality, f…

230 · Exact Hausdorff gauges for SLE

Resolves Schramm’s Hausdorff-measure question for chordal SLEκ, $`0\lt \kappa\lt 8…

231 · The free uniform spanning forest is a factor of IID

On every infinite connected locally finite simple unweighted graph, the free uniform spanning forest…

232 · Gaussian fields and interfaces for triangular-lattice Lipschitz heights

Proves Gaussian free field limits on bounded smooth simply connected domains for triangular-lattice …

233 · The joint critical Ashkin–Teller current limit

Identifies the joint scaling limit of Ashkin–Teller heights and both complete current-cluster collec…

234 · All-temperature pressure of orthogonally invariant Ising spin glasses

Gives an exact variational formula for the limiting pressure of orthogonally invariant Ising spin gl…

235 · Limiting random SAT thresholds, sharp variance and computability

For random k-SAT with independent uniformly signed proper clauses sampled with replacement, p…

236 · The exact factor-of-IID threshold for free Ising spins on trees

Determines when the free zero-field ferromagnetic Ising state on the infinite d-regular tree …

237 · The three-quarter exponent for honeycomb self-avoiding walk

Proves the diameter form of Nienhuis’s predicted three-quarter exponent: a uniformly chosen n…

238 · Optimal logarithmic mixing of the Thorp shuffle

Proves that the Thorp shuffle randomizes N=2^d labeled cards in \Theta(\log N) physical shuf…

239 · Sharp singularity rates for symmetric random sign matrices

Determines the sharp exponential singularity rate of symmetric random sign matrices with independent…

Mathematical logic

240 · Shelah’s eventual categoricity and the prescribed-threshold obstruction

Proves Shelah’s eventual categoricity conjecture in ZFC: for each bound on the Löwenheim–Skolem numb…

241 · Rigidity of the Turing degrees

Every order automorphism of the Turing degrees is the identity, resolving their rigidity problem. Th…

242 · Single-fold Diophantine representations and undecidability under an at-most-one-solution promise

Every recursively enumerable set of tuples of natural numbers has a Diophantine representation with …

243 · Separating choiceless counting from polynomial time and witnessed choice

Confirms the Blass–Gurevich–Shelah noncapture conjecture: consistency of a linear system over 𝔽…

244 · The Partition Principle does not imply Choice

Assuming ZF is consistent, constructs a model in which every surjective image of a set injects into …

245 · Weak normalization implies strong normalization in pure type systems

Proves that weak normalization implies strong normalization for every pure type system: if every leg…

Group theory

246 · Cannon’s conjecture

Every word-hyperbolic group with boundary homeomorphic to S2 admits a proper cocom…

247 · An infinite finitely presented residually finite 2-group and a finitely presented nil algebra

Constructs an infinite finitely presented residually finite group whose elements all have finite 2-p…

248 · Thompson’s group F is nonamenable

Proves that Thompson’s group F, the group of dyadic piecewise linear homeomorphisms of the in…

249 · A finitely generated Eilenberg–Ganea counterexample

Constructs a finitely generated residually finite group with integral cohomological dimension two an…

250 · Boone–Higman embeddings with higher finiteness

A finitely generated group has decidable word problem exactly when it embeds in a finitely presented…

251 · Amenability, unitarizability, and strong Ulam stability

Resolves Dixmier’s problem for all discrete groups: amenability is equivalent to every uniformly bou…

252 · A torsion-free hyperbolic group that is neither residually finite nor linear over any field

Constructs a torsion-free word-hyperbolic group that is not residually finite, answering the residua…

253 · An infinite finitely presented simple amenable group

Constructs an infinite finitely presented simple amenable group, answering the longstanding question…

254 · Classifying spaces and geometric obstructions for Artin groups

The Salvetti complex of every finite-rank Artin group is aspherical, proving the Artin K(\pi,1) …

255 · Quasi-isometric recognition of virtually polycyclic groups

Proves that every finitely generated group quasi-isometric to a finitely generated virtually polycyc…

256 · Nonsingular systems of equations over arbitrary groups

Proves that every finite system of equations over an arbitrary group whose exponent-sum matrix has f…

257 · A hyperbolic group without a geometric CAT(0) action

Answers negatively whether every word-hyperbolic group is a CAT(0) group. Constructs one with a fini…

258 · Gersten’s conjecture and virtual compact specialness of one-relator groups

Proves Gersten’s conjecture: every finitely generated one-relator group containing no Baumslag–Solit…

259 · A group without fixed price

Constructs a finitely generated group with two essentially free probability-measure-preserving actio…

Mathematical physics

260 · Spacetime Penrose inequalities: enclosing area, charge, rotation, and anti-de Sitter extensions

Proves the sharp enclosing-area spacetime Penrose inequality for smooth one-ended asymptotically fla…

261 · Localization and delocalization in the Anderson model

Resolves the predicted spectral contrast for the lattice Anderson model with independent uniform sit…

262 · Sharp finite-matrix Lieb–Thirring inequalities and all equality cases

Proves the sharp one-dimensional Lieb–Thirring inequality for 1/2\lt \gamma\lt 3/2 and arbitrary…

263 · The ionization and generalized ionization conjectures

For the full nonrelativistic Coulomb model with two electron spin states, proves that a molecule wit…

264 · Strong cosmic censorship near two-ended Kerr data

Proves local strong cosmic censorship near each fixed rotating subextremal Kerr bridge. A dense G…

265 · Area laws and tensor networks for two-dimensional gapped systems

Proves an entropy area law for unique ground states of finite-range Hamiltonians on arbitrary finite…

266 · Exactly three mutually unbiased bases in dimension six

Proves N(6)=3, resolving Zauner’s dimension-six mutually unbiased bases conjecture: three such b…

267 · Positive-temperature Bose–Einstein condensation and exact quantum depletion

Proves Bose–Einstein condensation for the exact canonical Gibbs state of the three-dimensional hard-…

268 · The spin-one Haldane gap

Proves the spin-one Haldane gap conjecture for the pure antiferromagnetic Heisenberg chain on even p…

269 · Uniform Laughlin gap and stability under bounded scalar disorder

Proves the fermionic Laughlin spectral-gap conjecture for the full V1 interaction …

270 · Threshold and positive-energy bound states of the BFSS matrix model

Proves that the undeformed relative \mathrm{SU}(N) BFSS model has exactly one normalizable zero-…

271 · Bloch’s law, its lattice correction, and the spherical magnetization law

Proves Bloch’s T3/2 law with its exact coefficient for three-dimensional quantum H…

272 · Entanglement without distillable secret key

Constructs an entangled state on \mathbb C^{10}\otimes\mathbb C^{10} with zero distillable secre…

273 · The entropy photon-number inequality

Proves the entropy photon-number inequality for beam-splitter mixing of two independent finite-energ…

274 · Parity is not in QAC0

Resolves Moore’s parity conjecture in the measured-output model: constant-depth quantum circuits wit…

275 · QMA-hardness of continuum Coulomb energy

Proves QMA-hardness of approximating the electronic Coulomb energy infimum in three dimensions, mini…

276 · Classical capacity of generalized amplitude damping

Determines the unassisted classical capacity of every qubit generalized amplitude-damping channel, i…

277 · Threshold repetition for entangled games

Proves exponential threshold repetition for every finite two-player one-round game: if its entangled…

278 · Failure of Kohn–Sham ensemble representation

Constructs a three-electron Coulomb molecule with two equal positive-integer-charge nuclei whose abs…

279 · Exact quantum factoring over a fixed finite gate set

Gives a polynomial-time uniform quantum circuit family that outputs the complete prime factorization…

280 · Unitary vertex operator algebras and conformal nets

Proves the strongly rational case of the strong-locality conjecture: every simple unitary strongly r…

281 · QAOA attains the SK optimum in the thermodynamic-first limit

Proves that QAOA approaches the ground-state energy of the Gaussian zero-field Sherrington–Kirkpatri…

282 · From scale symmetry to local conformal symmetry in four-dimensional QFT

Under the stated bounded-local-net and field-reconstruction hypotheses, proves that scale symmetry i…

283 · Polynomial-time unitary synthesis from a Boolean oracle

Solves the constant-error Aaronson–Kuperberg unitary synthesis problem: a uniform polynomial-size qu…

284 · The optimal quartic separation between randomized and quantum queries

Shows that the universal bound R(f)=O((1+Q(f))^4) for total Boolean functions is sharp in its ex…

Operator algebras

285 · Counterexamples to Baum–Connes and Kadison–Kaplansky

Disproves the coefficient-free reduced Baum–Connes conjecture through a failure of rational injectiv…

286 · Rigidity and arithmetic of lattice von Neumann algebras

Classifies finite-index bimodules between scalar-twisted group factors of ICC groups commensurable w…

287 · Isomorphism of the free group factors

Resolves the free group factor isomorphism problem: L(\mathbb F_2)\cong L(\mathbb F_3), and henc…

288 · Kadison’s similarity conjecture

Proves Kadison’s similarity conjecture: every bounded complex-linear unital algebra homomorphism fro…

289 · Strong Kadison–Kastler stability and its spatial boundaries

Proves that sufficiently close unital von Neumann algebras on the same Hilbert space are conjugate b…

290 · Relative bicentralizers and modular spectral recovery

Proves Connes’ bicentralizer conjecture for every type III1 factor with separable predual…

291 · Cuntz comparison, nuclear dimension, and equivariant Jiang–Su stability

Proves equivariant Jiang–Su stability for every countable discrete amenable group action on a simple…

292 · Kirchberg’s $\mathcal O_2$ norm-ultrapower embedding problem

Constructs an explicit separable unital full group C∗-algebra that cannot embed un…

293 · Invariant projections, hyperinvariant subspaces, and transitive algebras

Constructs a nonzero norm-quasinilpotent operator on every infinite-dimensional separable complex Hi…

294 · Kaplansky’s quasitrace conjecture and failure of tensor-product stable finiteness

Disproves Kaplansky’s quasitrace conjecture by constructing a separable unital complex C…

295 · The Kadison–Ringrose cohomology conjecture

Proves that every bounded Hochschild cocycle of degree at least two on a complex von Neumann algebra…

296 · The generator problem for finite factors

Proves that every type II1 factor with separable predual is generated by a single operato…

297 · A ZFC counterexample to Naimark’s problem

Gives an alternative to Tanaka’s ZFC construction of a unital …

298 · Two notions of free entropy differ even when both are finite

Constructs a bounded self-adjoint tuple in a tracial von Neumann algebra whose microstates and nonmi…

299 · The Kirchberg–Rørdam character criterion and infinite tensor-power Jiang–Su stability

A nonzero unital separable complex C∗-algebra is Jiang–Su stable exactly when its …

300 · Approximation and quadratic strong-operator paving

Proves that every self-adjoint element of a complex von Neumann algebra admits strong-operator pavin…

301 · Trace cones and Razak–Jacelon stabilization

Classifies separable nuclear complex C∗-algebras after tensoring with the Razak–Ja…

302 · Radius of comparison equals half the mean dimension

For every minimal homeomorphism h of an infinite compact metrizable space X, the radiu…

303 · Weak pure infiniteness and Cuntz-algebra absorption

Resolves the ordinary-to-strong pure-infiniteness question of Kirchberg and Rørdam for complex C<…

Topology

304 · The Hilbert–Smith conjecture in every dimension

Every locally compact second-countable Hausdorff group acting faithfully and jointly continuously on…

305 · Four-dimensional disk embedding and Wall’s conjecture

The unrestricted four-dimensional disk-embedding conjecture fails: framed algebraic dual spheres do …

306 · The purely cosmetic surgery conjecture

Distinct Dehn surgery slopes on a nontrivial smooth knot in S3 never produce orien…

307 · Failure of rational injectivity for maximal coarse assembly

Constructs a uniformly discrete bounded-geometry space whose maximal coarse assembly map is not rati…

308 · Finite Smith–Toda complexes at every height

For every n ≥ 0, constructs a finite Smith–Toda spectrum at a prime p depending on …

309 · The Kervaire invariant problem at the prime three

Resolves the odd-primary Kervaire invariant problem at the prime three: exactly the standard classes…

310 · Quillen’s conjecture in rational homology

Proves the rational-homology form of Quillen’s conjecture for every finite group and every prime. If…

311 · The Hovey–Strickland and Chai conjectures

Proves Chai’s invariant-ideal conjecture for Lubin–Tate deformation rings over finite residue fields…

312 · The Grothendieck homotopy hypothesis

Proves the Grothendieck homotopy hypothesis for ∞-groupoids associated with every Grothendieck coher…

313 · Finite generation for the $K(n)$-local sphere

Answers the degreewise finiteness question of Hovey and Hovey–Strickland: every homotopy group of th…

314 · Cyclic length and chromatic fixed-point loss

Determines the optimal chromatic loss from geometric H-fixed points to geometric G-fix…

315 · The four-dimensional Singer conjecture

Proves that the L2-Betti numbers of the universal cover of every closed connected …

316 · Curtis’s conjecture

Proves Curtis’s conjecture: the positive-degree mod-two stable Hurewicz image of the sphere is spann…

317 · Thomason model structures in all strict higher dimensions

Resolves the Ara–Maltsiniotis conjecture: for every n ≥ 1 and n = ω, small stri…

318 · Chromatic splitting: filtrations and counterexamples

Disproves strong chromatic splitting at height three for primes p ≥ 5, and weak splitting for…

319 · Counterexamples to finite generation at chromatic height two

Refutes the Hahn–Wilson conjecture at chromatic height two. For every sufficiently large prime p<…

320 · Nonhomeomorphic closed aspherical four-manifolds

Constructs closed connected aspherical topological four-manifolds that are homotopy equivalent but n…

321 · A counterexample to Wall’s finite D(2) problem

Constructs a finite connected three-dimensional CW complex whose universal cover has no integral hom…

Functional analysis

322 · Tingley’s sphere-isometry problem

Resolves Tingley’s problem: every surjective isometry between the unit spheres of nonzero real Banac…

323 · Independence of the separable quotient problem

Establishes, relative to the consistency of a measurable cardinal, that the separable quotient probl…

324 · Lipschitz equivalent Banach spaces need not be linearly isomorphic

Constructs separable real Banach spaces that are globally bi-Lipschitz equivalent but not linearly i…

325 · The complete Crouzeix conjecture

Resolves the complete Crouzeix conjecture: for every bounded operator A on a complex Hilbert …

326 · The cotype–cotype conjecture under the approximation property

Resolves the cotype–cotype conjecture for real Banach spaces with the approximation property. Such a…

327 · Markov type characterizes superreflexivity

Proves that every real Banach space with Markov type p for some p > 1 admits an equ…

328 · Nonexpansive fixed points in reflexive Banach spaces

Resolves Kirk’s reflexive-space fixed-point problem: every nonexpansive selfmap of a nonempty closed…

329 · A counterexample to metric-entropy duality

Disproves Pietsch’s dimension-free duality conjecture for metric entropy. Origin-symmetric convex bo…

330 · A uniformly discrete counterexample to bounded approximation in Lipschitz-free spaces

Constructs a countable uniformly discrete metric space whose real Lipschitz-free Banach space has th…

331 · Reflexive midpoint convexity and diamond distortion

Constructs a real reflexive Banach space with an asymptotically midpoint uniformly convex norm but n…

332 · Metric Markov cotype of ℓ1 and Hilbert-space Lipschitz extension

Proves that real ℓ1 has metric Markov cotype two, answering Mendel and Naor’s ques…

Differential geometry

333 · Smooth isometric immersions of surfaces into ℝ4

Every closed smooth Riemannian surface admits a smooth isometric immersion into ℝ4, resol…

334 · A smooth surface metric with no local isometric immersion in ℝ3

Constructs a smooth positive-definite metric on (-1,1)^2 for which no neighborhood of the origin…

335 · Gromov’s integral scalar-curvature bound for simplicial volume

Proves \int_M(\mathrm{Scal}_g^-)^{n/2}\,dV_g\ge a_n\lVert M\rVert for every closed connected ori…

336 · Spectral scalar curvature, Urysohn width, and macroscopic dimension

Every complete connected smooth boundaryless n-manifold, n ≥ 3, satisfying $`-4\Delta+…

337 · Sharp Cartan–Hadamard isoperimetry and rigidity

Proves generalized Cartan–Hadamard isoperimetry in every dimension: in a complete simply connected m…

338 · Yau’s uniformization conjecture

Proves Yau’s uniformization conjecture: every complete connected noncompact Kähler manifold with str…

339 · Katok’s entropy rigidity conjecture

Proves Katok’s entropy rigidity conjecture for closed connected Riemannian manifolds of dimension at…

340 · A counterexample to the nearby Lagrangian conjecture

Disproves the unrestricted nearby Lagrangian conjecture. For some sufficiently large even N, …

341 · Donaldson’s hypersymplectic deformation conjecture

Proves Donaldson’s hypersymplectic deformation conjecture in a cohomology-preserving form. Every pos…

342 · Donaldson’s tamed-to-compatible conjecture

Proves Donaldson’s tamed-to-compatible conjecture: every smooth almost complex structure on a closed…

343 · Symplectic ball packing in higher dimensions

Resolves the Siegel–Yao conjecture for arbitrary capacities in every dimension 2n\ge6. Finitely …

344 · The metric Blaschke conjecture

Proves the metric Blaschke conjecture: every closed connected Riemannian manifold of positive dimens…

345 · Infinitely many closed geodesics on Riemannian spheres and closed three-manifolds

Proves that every smooth Riemannian metric on Sn, n ≥ 2, has infinit…

346 · Sharp singular-set bounds for stationary integral varifolds

Proves that every stationary integral m-varifold in a Euclidean open set has singular set of …

347 · Counterexamples to stable-Morse and strong Arnold fixed-point bounds

Disproves stable-Morse lower bounds for nondegenerate Hamiltonian fixed points: on simply connected …

348 · Nonnegative-curvature Einstein classification and an L2 topological gap

Classifies closed connected Einstein four-manifolds with positive Einstein constant and nonnegative …

349 · The Solomon–Yau least-volume conjecture

Proves the Solomon–Yau least-volume conjecture for minimal hypersurfaces of round spheres. For every…

350 · Yau’s nodal bounds: surfaces and higher dimensions

Proves the sharp C\sqrt\lambda upper bound for nodal length on every fixed smooth closed surface…

351 · Scalar curvature and finite-time Ricci-flow singularities

Proves that a smooth Ricci flow on a closed four-manifold extends past any finite time at which scal…

352 · A finite-time singularity of Calabi flow

Disproves Chen’s smooth long-time existence conjecture for Calabi flow by constructing a smooth $`U(…

353 · Affine Bernstein rigidity through dimension nine and a smooth dimension-ten counterexample

Proves that every smooth locally uniformly convex affine-maximal graph of dimension three through ni…

354 · The isoperimetric profile of the cubic three-torus

Determines the isoperimetric profile of the unit cubic flat three-torus and classifies every finite-…

355 · Unique tangent flows at the first surface singularity

Proves the first-singular-time case of tangent-flow uniqueness for smooth compact connected embedded…

356 · Gigli’s characterization of Alexandrov curvature

Proves Gigli’s conjecture: in every integer dimension n ≥ 2, Alexandrov curvature at least <i…

357 · Bi-Lipschitz coordinates at every regular RCD point

Proves that every regular point of a noncollapsed \mathop{\mathrm{RCD}}\nolimits (K,n) space, fo…

358 · A three-manifold without conjugate points or nonpositive curvature

Constructs a closed connected orientable smooth three-manifold that admits a metric without conjugat…

359 · Negative Kähler curvature without bounded holomorphic coordinates

Constructs a contractible domain in ℂ3 with a complete negatively pinched Kähler metric b…

360 · Weak MTW curvature gives convexity and regular optimal transport

On every closed connected Riemannian manifold of dimension at least two satisfying weak Ma–Trudinger…

361 · Failure of integer-degree harmonic dimension comparison

Disproves Yau’s proposed Euclidean dimension bound for harmonic functions of integer growth on manif…

Partial differential equations

362 · Global smoothness for relativistic Vlasov–Maxwell

Proves large-data global existence and uniqueness for the three-dimensional, one-species relativisti…

363 · Nonuniqueness with local conservation for the hard-sphere Boltzmann equation

Constructs two distinct global entropy solutions of the three-dimensional periodic hard-sphere Boltz…

364 · Kinetic limits and fluctuations over the Boltzmann lifespan

Derives the nonlinear Boltzmann equation from three-dimensional grand-canonical Newtonian gases thro…

365 · Joint metric and connection recovery from one boundary patch

Zero-frequency measurements on any nonempty open boundary patch determine a smooth metric and smooth…

366 · The planar Mumford–Shah regularity conjecture and local weak-L4 gradient bounds

Resolves the interior regularity conjecture for reduced absolute planar Mumford–Shah minimizers with…

367 · The critical dimension for the one-phase Bernoulli problem

Establishes seven as the first dimension admitting a nonflat, one-homogeneous global minimizer of th…

368 · The three-dimensional Ball–Evans approximation problem

Resolves the three-dimensional Ball–Evans approximation problem: every W^{1,p} homeomorphism bet…

369 · The hot spots conjecture for simply connected planar domains

Proves a strict form of Burdzy’s simply connected hot spots conjecture. On every smooth bounded simp…

370 · The Lane–Emden and Hénon–Lane–Emden conjectures

Resolves the subcritical Lane–Emden conjecture and its weighted Hénon extension. For n ≥ 2, $…

371 · Stable blowup for the defocusing Schrödinger equation

For a sufficiently large odd nonlinearity power, constructs a nonempty open set of initial data in $…

372 · Global uniqueness in smooth isotropic elasticity

Proves that full static boundary displacement-to-traction data determine both smooth real Lamé modul…

373 · Nonattainment of the three-marginal Coulomb Monge problem

An optimal three-particle Coulomb configuration need not be a deterministic function of the first pa…

374 · Sharp one-third stability of Brenier maps

For uniform source measure ρ on a compact convex body with interior in dimension at least two…

375 · De Giorgi’s conjecture in dimension eight

Proves De Giorgi’s conjecture at its sharp dimension-eight endpoint: every entire C2</su…

376 · Universal computation in forced Navier–Stokes flows

Constructs viscous incompressible flows starting from rest on a fixed flat three-dimensional domain …

377 · Interior $C^{1,\alpha}$ regularity for infinity-harmonic functions

Proves uniform interior C^{1,\alpha_d} regularity for bounded infinity-harmonic functions in eve…