Surface groups as subgroups of hyperbolic groups (Ex)
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(Created page with "<wikitex>; Let $G$ be a torsionfree hyperbolic group which occurs as the fundamental group of an aspherical closed $3$-manifold. Show that $G$ contains the fundamental group o...")
(Created page with "<wikitex>; Let $G$ be a torsionfree hyperbolic group which occurs as the fundamental group of an aspherical closed $3$-manifold. Show that $G$ contains the fundamental group o...")
Latest revision as of 05:10, 9 January 2019
Let be a torsionfree hyperbolic group which occurs as the fundamental group of an aspherical closed -manifold. Show that contains the fundamental group of a closed orientable surface of genus as subgroup.