2010/10/21 by Alessandro Sisto, Sisto, Alessandro · 6 citations
Mathematics · #FOS: Mathematics #Geometric Topology (math.GT) #Group Theory (math.GR) #Metric Geometry (math.MG) #math.GR #math.GT #math.MG
paper · pdf · doi:10.48550/arxiv.1010.4552
The previous version has been split, the present version is a revision of the first part of the old version. The second part is now called "Tree-graded asymptotic cones"
arxiv created 2012/04/03 · arxiv updated 2012/04/04
We give an alternative definition of relative hyperbolicity based on properties of closest-point projections on peripheral subgroups. We also derive a distance formula for relatively hyperbolic groups, similar to the one for mapping class groups.