Non-orientable surface-plus-one-relation groups

被引:4
作者
Antolin, Yago [1 ]
Dicks, Warren [1 ]
Linnell, Peter A. [2 ]
机构
[1] Univ Autonoma Barcelona, Dept Matemat, E-08193 Barcelona, Spain
[2] Virginia Tech, Dept Math, Blacksburg, VA 24061 USA
关键词
L-2-Betti number; Surface-plus-one-relation group; LOCALLY INDICABLE GROUPS; FREE-PRODUCTS; THEOREM; EQUATIONS; RING;
D O I
10.1016/j.jalgebra.2009.03.001
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Recently Dicks-Linnell determined the L-2-Betti numbers of the orientable surface-plus-one-relation groups, and their arguments involved some results that were obtained topologically by Hempel and Howie. Using algebraic arguments, we now extend all these results of Hempel and Howie to a larger class of two-relator groups, and we then apply the extended results to determine the L-2-Betti numbers of the non-orientable surface-plus-one-relation groups. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:4 / 33
页数:30
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