32 citations · 91 across the 9 of their papers we have counts for
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math.GT2014
Stability in Outer Space
Ursula Hamenstädt, Sebastian Hensel
We characterize strongly Morse quasi-geodesics in Outer space as quasi-geodesics which project to quasi-geodesics in the free factor graph. We define convex cocompact subgroups of…
math.DG2014★ 2 cited
Incompressible surfaces in rank one locally symmetric spaces
Ursula Hamenstaedt
We show that cocompact lattices in rank one simple Lie groups of non-compact type distinct from SO(2m,1) (m>0) contain surface subgroups.