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Can anyone guide me to a good site for the special linear group $SL(2,R)$, especially one that goes deep into its subgroup and normal subgroup? Book recommendations would be great too.

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Probably not really what you're looking for, but it came to mind because I read it recently: It's only really concerened with representation theory in order to do some harmonic analysis, but hopefully you'll find something of interest there. – user123123 Oct 26 '12 at 0:45
Google it. A good algebra books is better though. – glebovg Oct 26 '12 at 0:53
Actually, book recommendations would be great, also. Thanks – Akaichan Oct 26 '12 at 13:44
Thank you, @Peter, I think I'd enjoy this – Akaichan Oct 26 '12 at 13:45
up vote 6 down vote accepted

Read $SL_2(R)$ by Serge Lang. The title is exactly the topic you are looking for!

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Who knew? (I guess you did!) – amWhy Nov 29 '12 at 0:11

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