most citedTrain tracks and the Gromov boundary of the complex of curves

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math.GR2005★ 1 cited

Bounded cohomology, cross ratios and cocycles

Ursula Hamenstaedt

We use cross ratios to describe second real continuous bounded cohomology for locally compact topological groups. We also derive a rigidity result for cocycles with values in the i…

math.GR2005★ 2 cited

Bounded cohomology and isometry groups of hyperbolic spaces

Ursula Hamenstaedt

Let X be an arbitrary hyperbolic geodesic metric space and let G be a countable non-elementary weakly acylindrical group of isometries of X. We show that the second bounded cohomol…