群の分類と幾何学的構造と作用 - 2026/7/2の論文9本

arXiv math.GRの新着論文9本をご紹介します。番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-02/Parabolic subgroups of Dyer groupsThe classification of Bidihedral GroupsDirectional expansion in ergodic actions of countable groupsObstructions to coarse universality for finitely generated groups$A_3$-formality for pro-2 Demushkin groupsCoarse geometry of homeomorphism groups: Classifying countable Stone spacesThe topology of Schottky spaces in higher dimensionsActions of lattices in $S$-arithmetic groups on manifoldsQuandle homology and relative group homology