Finite contractions of graphs with polynomial growth

被引:5
|
作者
Lukács, A
Seifter, N
机构
[1] CWI, NL-1090 GB Amsterdam, Netherlands
[2] Montanuniv Leoben, Inst Math & Angew Geometrie, A-8700 Leoben, Austria
基金
奥地利科学基金会;
关键词
D O I
10.1006/eujc.2000.0405
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let X be a locally finite, vertex-transitive, infinite graph with polynomial growth. Then there exists a quotient group of Aut(X) which contains a finitely generated nilpotent subgroup N which has the same growth rate as X. We show that X contains a subgraph which is finitely contractible onto the h-dimensional lattice, where h is the Hirsch number of N. (C) 2001 Academic Press.
引用
收藏
页码:85 / 90
页数:6
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