バンドとクレパントとフロップとクラス群 - 2026/4/14の論文15本

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/2026-04-14/Some faithful algebraic braid twist group actions for 3-fold crepant resolutionsRationality of cohomological descendent series for Quot schemes on surfaces with $p_g=0$Descendant and Fourier-Mukai equivalences for simple flopsNotes on the decomposition theorem for blowupsRiemannian Geometry on Associative VarietiesAsymptotic Behavior of Tropical Rank FunctionsNCCRs of cones over del Pezzo surfacesGeometry of the Donaldson--Friedman PushoutCurves on the product of two $K-$trivial surfacesSingularities of diagonals of Laurent series for rational functionsA note on double Danielewski surfacesTwo Lemmas on the Fiber-wise Holomorphicity in Complex Algebraic GeometryBranched covers of $\mathbb{P}^1$ and divisibility in class groupGlobalCY I: A JAX Framework for Globally Defined and Symmetry-Aware Neural K\"ahler PotentialsAn analogue of irreducible cuspidal representations for the group $PGL(2)$ over a two-dimensional local field