1 citations · 1 across the 4 of their papers we have counts for
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On Products of Closed Subsets in Free Groups
Rita Gitik, Eliyahu Rips
We present examples of closed subsets of a free group such that their product is not closed in the profinite topology. We discuss how to characterize a subset of a free group which…
On Geodesic Triangles in Hyperbolic Plane
Rita Gitik
Let M be an orientable hyperbolic surface without boundary and let be a closed geodesic in M. We prove that any side of any triangle formed by distinct lifts of in H2 is sh…
A Generalization of a Power-Conjugacy Problem in Torsion-Free Negatively Curved Groups
Rita Gitik
Let H and K be quasiconvex subgroups of a negatively curved torsion-free group G. We give an algorithm which decides whether an element of H is conjugated in G to an element of K.
On Tame Subgroups of Finitely Presented Groups
Rita Gitik
We prove that the free product of two finitely presented locally tame groups is locally tame and describe many examples of tame subgroups of finitely presented groups. We also incl…
On Closed Subsets of Free Groups
Rita Gitik, Eliyahu Rips
We give two examples of a finitely generated subgroup of a free group and a subset, closed in the profinite topology of a free group, such that their product is not closed in the p…