JournalslemVol. 59, No. 1/2pp. 165–181

Projections and relative hyperbolicity

  • Alessandro Sisto

    ETH Zürich, Switzerland
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Abstract

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.

Cite this article

Alessandro Sisto, Projections and relative hyperbolicity. Enseign. Math. 59 (2013), no. 1, pp. 165–181

DOI 10.4171/LEM/59-1-6