2 papers
math.GR2007
Cohomological characterization of relative hyperbolicity and combination theorem
F. Gautero, M. Heusener
We give a cohomological characterization of Gromov relative hyperbolicity. As an application we prove a converse to the combination theorem for graphs of relatively hyperbolic grou…
math.GT2007
Deformations of metabelian representations of knot groups into
Leila Ben Abdelghani, Michael Heusener, Hajer Jebali
Let K be a knot in and its complement. We study deformations of reducible metabelian representations of the knot group into which are associat…