Bushy pseudocharacters and group actions on quasi-trees

Details Bushy pseudocharacters and group actions on quasi-trees Bushy pseudocharacters and group actions on quasi-trees

2011-04-05

arxiv.org/abs/1104.0790v1

Mathematics

Group Theory

13 pages, 3 figures

Scientific paper

Given a group acting on a graph quasi-isometric to a tree, we give sufficent
conditions for a pseudocharacter to be bushy. We relate this with the
conditions studied by M. Bestvina and K. Fujiwara on their work on bounded
cohomology and obtain some results on the space of pseudocharacters.

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