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FIXED-POINTS OF FINITE-GROUPS OF FREE GROUP AUTOMORPHISMS
被引:8
|作者:
WHITE, T
[1
]
机构:
[1] UNIV CALIF LOS ANGELES,DEPT MATH,LOS ANGELES,CA 90024
关键词:
LENGTH FUNCTION;
TREE;
OUTER SPACE;
D O I:
10.2307/2160103
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We construct an equivariant collection of contractions of the compactified Culler-Vogtmann outer space X(n)BAR. As a consequence, we prove that any finite subgroup of the outer automorphism group of a free group fixes a contractible subset of X(n)BAR.
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页码:681 / 688
页数:8
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