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The fundamental group of a locally finite graph with ends
被引:10
|作者:
Diestel, Reinhard
[1
]
Spruessel, Philipp
[1
]
机构:
[1] Univ Hamburg, Math Seminar, D-20146 Hamburg, Germany
关键词:
Fundamental group;
Infinite words;
Infinite graphs;
Ends of graphs;
Freudenthal compactification;
Topological cycle space;
SPANNING-TREES;
CYCLES;
D O I:
10.1016/j.aim.2010.09.008
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We characterize the fundamental group of a locally finite graph G with ends combinatorially, as a group of infinite words. Our characterization gives rise to a canonical embedding of this group in the inverse limit of the free groups pi(1) (G`) with G` subset of G finite. (c) 2010 R. Diestel. Published by Elsevier Inc. All rights reserved.
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页码:2643 / 2675
页数:33
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