A simple proof of a theorem of Karrass and Solitar

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dc.creatorKahrobaei, Delaram
dc.date2004-11-03
dc.date.accessioned2026-07-07T05:13:56Z
dc.date.available2026-07-07T05:13:56Z
dc.descriptionIn this note we give a particularly short and simple proof of the following theorem of Karrass and Solitar. Let $H$ be a finitely generated subgroup of a free group $F$ with infinite index $[F:H]$. Then there is a nontrivial normal subgroup $N$ of $F$ such that $N\cap H = \{1\}$.
dc.description2 pages. to appear
dc.identifierhttps://arxiv.org/abs/math/0411076
dc.identifierhttp://arxiv.org/abs/math/0411076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/73096
dc.subjectGroup Theory
dc.subject20E05
dc.titleA simple proof of a theorem of Karrass and Solitar
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