Characterizing rigid simplicial actions on trees
群论
2008-01-31 v1 几何拓扑
摘要
We extend Forester's rigidity theorem so as to give a complete characterization of rigid group actions on trees (an action is rigid if it is the only reduced action in its deformation space, in particular it is invariant under automorphisms preserving the set of elliptic subgroups).
引用
@article{arxiv.math/0409245,
title = {Characterizing rigid simplicial actions on trees},
author = {Gilbert Levitt},
journal= {arXiv preprint arXiv:math/0409245},
year = {2008}
}
备注
Geometric methods in group theory (2004) to appear