Relative Rips Machine

2016/12/23 by Wang, Pei
#20E08 #20F65 #FOS: Mathematics #Geometric Topology (math.GT) #Group Theory (math.GR)

paper · doi:10.48550/arxiv.1612.07884

Abstract

We study isometric actions of finitely presented groups on ℝ-trees. In this paper, we develop a relative version of the Rips machine to study pairs of such actions. An important example of a pair is a group action on an ℝ-tree and a subgroup action on its minimal invariant subtree.

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