Group actions on contractible 2-complexes II
成果类型：
Article
署名作者：
Piterman, Kevin Ivan; Costa, Ivan Sadofschi
署名单位：
University of Buenos Aires; Vrije Universiteit Brussel
刊物名称：
INVENTIONES MATHEMATICAE
ISSN/ISSBN：
0020-9910
DOI：
10.1007/s00222-025-01363-8
发表日期：
2025
页码：
563-570
关键词：
摘要：
In this second part we prove that, if G is one of the groups PSL2(q) with q > 5 and q-5 (mod 24) or q-13 (mod 24), then the fundamental group of every acyclic 2dimensional, fixed point free and finite G-complex admits a nontrivial representation in a unitary group U(m). This completes the proof of the following result: every action of a finite group on a finite and contractible 2-complex has a fixed point.
来源URL：