多様体とスキームと不変量 - 2026/4/29の論文20本

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/2026-04-29/Unrestrictions and concise secant varietiesThe $\mathbf{P}^1$-motivic Gysin mapThe Quasisymmetric GrassmannianThe Mukai conjecture via Cox rings for special toric ambient embeddingsThe 3-divisibility of divisors on K3 surfaces in characteristic 3On the meagerness of the set of irregular bundles on Hopf surfacesA local-global correspondence for perfectoid purityConfocal families of plane algebraic curvesExcess logarithmic residues for foliations by curves and applicationsApproximations and Hovey triples by objects of finite homological dimensions: Applications to sheavesOn the Jacobian algebras of Ziegler pairs of plane arrangementsGIT quotient of minimal dimensional Schubert variety modulo a subtorusSemistable reductions and minimalities of invariants for group scheme actions on projective schemesA result on the generic Picard number of surfaces in fake weighted projective 3-spacesGorenstein Simplices and Even Binary Self-Complementary CodesElementary anabelian varieties are anabelianFaithful perversitiesEssential tori associated with links of mixed singularitiesGeometry of Logarithmic Topological Recursion: Dilaton Equations, Free Energies and Variational FormulasThe coordinate ring of the universal centralizer via Demazure operators