Periodicity of free subgroup numbers modulo prime powers

被引:2
|
作者
Krattenthaler, C. [1 ]
Mueller, T. W. [2 ]
机构
[1] Univ Vienna, Fak Math, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[2] Univ London, Queen Mary & Westfield Coll, Sch Math Sci, Mile End Rd, London E1 4NS, England
基金
奥地利科学基金会;
关键词
Virtually free groups; Free subgroup numbers; Modular group; Periodic sequences;
D O I
10.1016/j.jalgebra.2015.12.026
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We characterise when the sequence of free subgroup numbers of a finitely generated virtually free group is ultimately periodic modulo a given prime power. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码:372 / 389
页数:18
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