群と環の代数構造と幾何学 - 2026/10/22の論文10本

arXiv math.GRの新着論文10本をご紹介します。番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-10-22/ Outer automorphisms of HNN extensions of abelian groups On Finite Groups with Element Order Set of Width 3 The first $\ell^2$-Betti number, cost and rank gradient of few-relator random groups Kobayashi's problem for power semigroups of inverse semigroups The Conjugacy Problem for Recursively Presented Virtually Soluble Groups of Finite Pr\"ufer Rank On unit groups of purely infinite rings The Diophantine Problem with constraints in some free-by-cyclic groups The geometric combinatorics of $k$-shuffle braid groups Continuity of Furstenberg entropy on Bowen Poisson bundles Restriction of $p'$-degree characters, fields of values, and relative normal complements