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Showing 1995Show all
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math.GR1995
Quasiconvexity and Amalgams
Ilya Kapovich
We obtain a criterion for quasiconvexity of a subgroup of an amalgamated free product of two word hyperbolic groups along a virtually cyclic subgroup. The result provides a method…
math.DS1995★ 1 cited
Topological conjugacy of circle diffeomorphisms
Jun Hu, Dennis Sullivan
The classical criterion for a circle diffeomorphism to be topologically conjugate to an irrational rigid rotation was given by A. Denjoy. In 1985, one of us (Sullivan) gave a new c…