关于剩余 poly-$\mathbb Z$ 群的顶维 $L^2$-Betti 数
群论
2026-01-27 v1
摘要
设 为有限型的剩余 poly- 群。我们证明 允许一个核 满足 的 poly- 商群,当且仅当 的顶维 -Betti 数消失。
引用
@article{arxiv.2601.18594,
title = {On the top-dimensional $L^2$-Betti number of residually poly-$\mathbb Z$ groups},
author = {Sam P. Fisher and Pablo Sánchez-Peralta},
journal= {arXiv preprint arXiv:2601.18594},
year = {2026}
}
备注
9 pages. Intended for publication in the "Geometry and Topology of Polyhedral Complexes" conference proceedings