Characterizing rigid simplicial actions on trees
Levitt, Gilbert
HAL, hal-00002839 / Harvested from HAL
Text on HAL
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).
Publié le : 2004-07-05
Classification:  [MATH.MATH-GR]Mathematics [math]/Group Theory [math.GR],  [MATH.MATH-GT]Mathematics [math]/Geometric Topology [math.GT] 
@article{hal-00002839,
     author = {Levitt, Gilbert},
     title = {Characterizing rigid simplicial actions on trees},
     journal = {HAL},
     volume = {2004},
     number = {0},
     year = {2004},
     language = {en},
     url = {http://dml.mathdoc.fr/item/hal-00002839}
}

Levitt, Gilbert. Characterizing rigid simplicial actions on trees. HAL, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/hal-00002839/