プレプリどんどん: math.AG

arXiv math.AGの新着論文13本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-03-05/

1. Cohomological Hall algebras of one-dimensional sheaves on surfaces and Yangians
2. Some Classical Invariants, from Harmonic Quadruples to Triangle Groups
3. Dual complexes of qdlt Fano type models and strong complete regularity
4. Cohomological Chow Groups of codimension one of varieties with isolated singularities
5. Tannakian duality and Gauss-Manin connections for a family of curves
6. Existence of the minimal model program for log canonical generalized pairs
7. Cobordism-valued intersection theory on $\overline{\mathcal{M}}_{0,n}$
8. Principal twistor models and asymptotic hyperk\"ahler metrics
9. Differential Goppa Codes
10. A Non-Abelian Approach to Riemann Surfaces
11. Relative $\mathbb{A}^1$-Contractibility of Smooth Schemes and Exotic Motivic Spheres
12. Planar, rational curves over ${\mathbb F}_2$ whose only singularity is a double point
13. Index and Robustness of Mixed Equilibria: An Algebraic Approach

arXiv math.AGの新着論文19本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-03-04/

1. Chow groups of Chow varieties
2. On the Chow ring of double EPW quartics
3. Kodaira-type classification of singular fibers of some minimal abelian fibrations
4. Ulrich Bundles on Jacobian Variety of a Curve
5. Galois Orbit Bounds for Surface Degenerations
6. Brauer group of moduli of stable parabolic $\text{SL}(r,\mathbb{C})$ and $\text{PGL}(r,\mathbb{C})$-connections and Higgs bundles over a curve
7. Complexity of quantum cohomology
8. Algebraic integrable connections with bounded irregularity
9. Anabelian perspectives in Galois-Teichm\"uller theory
10. Commutative $BV_\infty$ algebras, their morphisms and $\frac{\infty}{2}$-variation of Hodge structures
11. Remarks on the positivity of the cotangent bundle of an Enriques surface
12. Notes on Solid Geometry
13. On the coregularity of del Pezzo surfaces with du Val singularities
14. Hasse-Witt invariants of Calabi-Yau varieties
15. Genus $2$ pencils on surfaces with $p_g=K^2=1$, envelopes, and conics tangent to plane cubic curves
16. Noether-Lefschetz general complete intersection K3 surfaces over the rationals
17. Primes of bad reduction for systems of polynomial equations
18. A log prismatic-crystalline comparison theorem
19. Special Lagrangian smoothings, Calabi ansatz and stability conditions

arXiv math.AGの新着論文24本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-03-03/

1. Specializations of symplectic and van Geemen--Sarti involutions on K3 surfaces
2. Canonical blow-ups of Lagrangian and Orthogonal Grassmannians
3. Riemann-Wirtinger integrals on the product of two one-dimensional complex tori
4. The Wirtinger-type integral for a genus two curve
5. Fast computation of Riemann-Roch spaces for singular curves
6. Torsion cycles on Fermat varieties
7. A family of Non-Weierstrass Semigroups
8. Explicit deformation of a spider algebra to a curvilinear scheme via M\"obius generators
9. 2--elementary rational covers of the plane
10. Modularity of special cycles on Shimura varieties: a survey
11. The global nilpotent cone for universal curves
12. Covers of curves, Ceresa cycles, and Unlikely intersections
13. Logarithmic Equigeneric Smoothing and Maximal Nodal Degenerations
14. Equisingular Deformations of Curves and Surfaces in Threefolds
15. Berkovich $2$-motives and normed ring stacks
16. Intersection theory on singular moduli spaces of vector bundles: a parabolic approach
17. Positivity of vector bundles and Dominance
18. Metric Rarity and the Rise of Symmetry in Invariant Optimization
19. On log crystalline higher direct image
20. Local structure of smooth \texorpdfstring{$p$}{p}-adic analytic Artin stacks
21. Adjoint Reidemeister torsion of 3-manifolds with torus boundary for semisimple algebraic groups
22. KLR-Schur algebra of coherent sheaves on the projective line: Tilting and PBW bases
23. The Poincar\'e polynomial of the type B analogue of $\overline{\mathcal{M}}_{0,n+1}$
24. Algebraic statistics of H\"usler-Reiss graphical models in multivariate extremes

arXiv math.AGの新着論文15本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-03-02/

1. Cluster type varieties
2. Covering gonality of hypersurfaces in a product of projective spaces
3. Invariants in equivariant birational geometry
4. On Weierstrass semigroups of maximal Fermat function fields
5. Noncommutative varieties and stability conditions: an overview
6. Seidel product formula in equivariant quantum $K$-theory of flag varieties
7. Strong monodromy conjecture for defining polynomials of reduced projective curves having only weighted homogeneous singularities
8. Reeb spaces of functions being analytic on dense subsets and their graph structures
9. Multiprojective Geometry of Compatible Triples of Fundamental and Essential Matrices
10. On invariants of representations of Weyl groups associated with the cohomology of toric varieties
11. Copositive and completely positive cones over symmetric cones of rank at least 5
12. Improved, sublinear projective Schwartz-Zippel and (sub)quadratic dimension growth bounds in arbitrary codimension
13. Periods of hyperplane arrangements and multiple polylogarithms
14. Newton strata realization for hypersurfaces via explicit p-adic cohomology
15. Equivariant finite energy proper minimal surfaces in $\mathbb{CH}^2$

arXiv math.AGの新着論文12本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-27/

1. Non-trivial and Non-tautological Cohomology of Strata of Differentials
2. Syzygies and Koszul modules in geometry
3. On a conjecture of Fujino and Sato
4. Approximating parametric suprema for constructible and power-constructible functions
5. Moduli of sheaves on hyperk\"ahler manifolds
6. Toric schemes and integral models for Shimura varieties with $\Gamma_1(p)$-type level
7. P\'olya enumeration, wreath product symmetric functions, and moduli spaces of curves
8. Computing Invariants of Artin-Schreier Curves
9. A Perfectoid Duality Between M-Theory and F-Theory
10. On rational quadratic cocycles
11. Modular interpretation of the Weil-Petersson metric asymptotics for abelian varieties
12. Invertible Calabi-Yau Orbifolds over Finite Fields II

arXiv math.AGの新着論文16本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-26/

1. A \v{C}ech--Stokes Pushout Groupoid: a Log/Kummer Betti Presenter for Stokes Torsors
2. Deformation Theory of $\mathbb{E}_n$-Monoidal Categories
3. Topology of projective Tate-Shafarevich twists
4. An Effective Criterion for Covering Maps Between Real Varieties
5. Neural Learning of Fast Matrix Multiplication Algorithms: A StrassenNet Approach
6. Non-commutative crepant resolutions for (almost) simplicial toric algebras
7. On combinatorial bounds for the total Tjurina numbers of certain curves and surfaces with isolated singularities
8. Pure extension of the theta divisor over the moduli space of abelian varieties
9. A characterization of projective space via lengths of extremal rays
10. Geometry of two- and three-dimensional integrable systems related to affine Weyl groups $W(E_8^{(1)})$ and $W(E_7^{(1)})$
11. Cohomology of symplectic $T^n$ - reductions and compactifications of $\mathcal{M}_{0, n}$
12. Quartic del Pezzo surfaces over $\mathbb{F}_p(t)$ without quadratic points
13. Equidistribution for Tannakian monodromy groups
14. The cyclosyntomic regulator of a number field
15. Perfectoid unitary Shimura varieties and $p$-adic Eichler-Shimura map I
16. Vanishing of local cohomology in unramified mixed characteristic

arXiv math.AGの新着論文21本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-25/

1. Derived categories of quadric bundles and moduli stacks of spinor sheaves
2. On moduli of Fano varieties: an introduction to K-stability and K-moduli
3. A guide to wall crossing for moduli of varieties
4. The $G$-Noncommutative Minimal Model Program
5. A super Version of a Theorem of Fricke and Klein
6. Quotients by $(p-1)/p$-klt Foliations on Surfaces
7. Dualizing complexes for algebraic stacks
8. Distributions with Unstable Tangent Sheaf on $\mathbb{P}^3$
9. An invitation to the enumerative geometry of degenerations
10. The Strong Monodromy Conjecture for a class of homogeneous polynomials in three variables
11. The Brauer group of a Stein algebra
12. Modularity of a certain "rank-2 attractor" Calabi-Yau threefold
13. Universal Functions for Topological Correlators
14. Equivariant real cycle class map and Witt-sheaf cohomology of classifying spaces
15. Projective bundles that admit coupled K\"ahler-Einstein metrics but no K\"ahler-Einstein metrics
16. Solutions of polynomial equations in several variables modulo a prime power
17. Preserving Hodge Vectors of Lattice Polytopes
18. The $d$-dimensional realisation number of a rigid graph
19. The formal spectrum of a tensor-triangulated category
20. Stable polynomials and bounded rational functions in the unit ball
21. On the Semi-Abelianness of Affine Group Schemes

arXiv math.AGの新着論文20本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-24/

1. Algebraic realization of stable Poincar\'e-Reeb graphs
2. Klein coverings over hyperelliptic genus 3 curves
3. Picard bundles and Twisted Picard bundles on the Jacobian of a curve
4. Perfect complexes on finite flat affine groupoids
5. Dualizable abelian fibrations
6. Universal extension spaces and modular maps: unveiling irreducible components of Brill-Noether loci of stable bundles on a general $\nu$-gonal curve
7. A cohomological interpretation for stringy Hodge numbers
8. Classification of double octic Calabi-Yau threefolds defined by an arrangement of eight planes II
9. Notes on rational chain connectedness
10. Multigraded Hurwitz forms
11. Relevant maps and the algebraic skeleton of simplicial toric prevarieties
12. Explicit formulas and exact values for the number of rational points on singular curves over finite fields
13. Monodromy rank and the semisimple Mumford-Tate conjecture for hyper-K\"ahler varieties
14. Hilbert surfaces, modular forms, and Siegel-Veech constants
15. On the birational isotriviality of the Albanese morphism of a log Calabi-Yau pair with a torus action
16. Serre duality, Mukai pairing and universal Auslander--Reiten triangle
17. Moduli of $G$-bundles on rigid gerbes over affine curves
18. On factorization of matrix of Kazhdan-Lusztig polynomials
19. Stacky Batyrev-Manin conjecture and modular curves
20. On the Ramanujan Vector Field modulo $p$

arXiv math.AGの新着論文5本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-23/

1. Fermat's Last Theorem for Selmer sections
2. Cohomological boundedness of twisted coherent Springer sheaves
3. Degenerations of CoHAs of 2-Calabi-Yau categories
4. Dynamical GCD Problems and a Variant of the Dynamical Mordell-Lang Conjecture
5. An algebraic theory of Lojasiewicz exponents

arXiv math.AGの新着論文13本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-ag/episodes/2026-02-20/

1. Classifying binary quadratic forms using Clifford invariants
2. Dimension bounds for relative character varieties on the projective line with three punctures $G=GL(r), O(r), Sp(r)$
3. Translational surfaces and iterated resultants
4. Webs and smooth components of two column Springer fibers
5. The GKZ hypergeometric $\mathcal D$-module
6. On rational chain connectedness of globally +-regular varieties
7. Automorphisms of Smooth Hypersurfaces with Fixed Loci of Codimension at Most Two
8. Spectrum, Tjurina spectrum, and Hertling conjecture for singularities of modality $\leq 3$
9. Dimension of fixed loci of diagonalizable groups via algebraic cobordism
10. Generically log smooth families via generators and relations
11. Non-hyperelliptic modular curves of genus 3
12. Serre depth and local cohomology
13. Computing class groups and gonalities of algebraic curves over finite fields