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Newsgroups: sci.math
From: José Carlos Santos <jcsan...@fc.up.pt>
Date: Tue, 03 Nov 2009 11:22:19 +0000
Local: Tues, Nov 3 2009 11:22 am
Subject: Re: subgroups of SL
On 03-11-2009 6:46, leiko wrote:
> Why is a finite subgroup of SL (2,R) cyclic? Every finite subgroup of SL(2,R) is isomorphic to a finite subgroup of the group of all rotations of R^2. Since this is just S^1, it is easy to prove that such a group is cyclic. Best regards, Jose Carlos Santos You must Sign in before you can post messages.
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