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José Carlos Santos  
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 More options Nov 3 2009, 7:37 am
Newsgroups: sci.math
From: José Carlos Santos <jcsan...@fc.up.pt>
Date: Tue, 03 Nov 2009 07:37:55 +0000
Local: Tues, Nov 3 2009 7:37 am
Subject: Re: subgroups of SL
On 03-11-2009 6:46, leiko wrote:

> Why is a finite subgroup of SL (2,R) cyclic?   What about SL (3,R)?

In the case of SL(3,R), consider the group of all 3x3 diagonal matrices
with determinant 1 and such that each entry of the diagonal is either 1
or -1.

Best regards,

Jose Carlos Santos


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