プレプリどんどん: math.AG
不変量と変形とモジュライ空間 - 2026/9/15の論文53本
arXiv math.AGの新着論文53本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-09-15/ Stringy invariants for abelian character varieties Degrees of Fano Quiver Moduli A Log Canonical Counterexample to the Chen--Jiang Decomposition Extensions and Segre stratifications over algebraic surfaces Contact Rigidity and Comparison Kernels for Type A lci Schubert Varieties Conifold Gap for the Quintic Threefold The cylinder over the Russell cubic threefold is flexible Motivic Steenrod algebra and Thom obstructions without desingularization Theta-duality and Prym-Torelli for cyclic covers of hyperelliptic curves Discriminants of Hermitian forms, maximal degenerations and Kontsevich's tropical approach to the Hodge conjecture Torelli theorems for Quot schemes of vector bundles on curves Holomorphic polyvector fields on toric varieties via Klyachko filtrations Deformation invariance of canonical nefness in smooth Kahler morphisms Blow-up formulas of Gromov-Witten invariants and virtual cycles under positivity conditions Nagata's conjecture on a polynomial automorphism in positive characteristic Phantom subcategories on blow-ups of Hirzebruch surfaces Lagrangian fibrations on hyperkahler manifolds have no multiple fibers in codimension one An arithmetic integrability result for codimension-one foliations on complex projective spaces Nakajima-extremal Artin--Schreier covers of ordinary elliptic curves in characteristic $2$ Level structures on tropical abelian varieties Geometric Invariant Theory for Affine Superschemes Riemann-Roch Polynomials, MBM Classes and Poor IHS Manifolds Torsion, Betti rank, and small points in semiabelian schemes Ulrich Bundles on certain Grassmann Bundles Over Curves Asymptotic Counting of Singular Fibers of Genus $g$ Noether's problem for $A_6$ and $A_7$ An algebraic comparison of $\widehat{\mathrm K}$-stability and $\mathrm K^\beta$-stability Generic vanishing subschemes of codimension three Harmonic sums and the Galois group of the Mellin-KZ difference equation Polarized varieties without arithmetically Cohen-Macaulay bundles and section rings without graded maximal Cohen-Macaulay modules in characteristic zero Small-Subgroup Criteria for Liftability of Automorphism Groups of Smooth Hypersurfaces Algebraic hyperbolicity of very general hypersurfaces in projective spaces A blowup criterion for regularity Geometric realizations of Brauer classes on K3 surfaces from hyperk\"ahler contractions Two proofs of the Cassels--Swinnerton-Dyer conjecture for cubic surfaces The tautological ring of $M_{25}$ is not Gorenstein Explicit invariants of the Suzuki and Ree groups in their function fields Wasserstein Metric Normalization of Projective Cycle Spaces GrassTop: Grassmannian k-mer Topology for Viral Classification and Phylogenetic Analysis Dynamical uniform boundedness for unicritical polynomials and elliptic curves of large rank Galois representations and modularity for twisted moments of Kloosterman sums The structure of automorphism groups of zero-dimensional monomial algebras The classification of some polynomial maps in dimension three Polynomial corners in finite fields beyond the distinct-degree case Hierarchical hyperbolicity, ball quotients, and the moduli space of smooth cubic surfaces Elimination of Ren\'e Peschmann's 968 Remaining Hard Fibers for the Perfect Cuboid Problem Ekedahl-Oort strata meeting the supersingular locus Generating hypotheses along the motivic deformation Hecke structure of quaternionic modular forms mod $p$ Sharp degree bound for rational proper maps from $\mathbb B^2$ to $\mathbb B^4$ Logarithm of the Universal Two-Valued Formal Group Augmented singular cohomology, uniform matroids, and real-rootedness The coherent KLR sheaf
