English

Quasi-actions on trees and Property (QFA)

Group Theory 2007-05-23 v4 Geometric Topology

Abstract

We prove some general results about quasi-actions on trees and define Property (QFA), which is analogous to Serre's Property (FA), but in the coarse setting. This property is shown to hold for a class of groups, including SL(n,Z)SL(n,\Z) for n3n\geq 3. We also give a way of thinking about Property (QFA) by breaking it down into statements about particular classes of trees.

Cite

@article{arxiv.math/0310065,
  title  = {Quasi-actions on trees and Property (QFA)},
  author = {Jason Fox Manning},
  journal= {arXiv preprint arXiv:math/0310065},
  year   = {2007}
}

Comments

23 pages, Appendix on "Boundedly generated groups with pseudocharacter(s)" by Nicolas Monod and Bertrand R\'emy. References have been updated. Some statements in Section 4 have been modified

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