Projections and relative hyperbolicity
classification
🧮 math.MG
math.GRmath.GT
keywords
groupshyperbolicityprojectionsrelativealternativeclassclosest-pointdefinition
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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.
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