The Unapologetic Mathematician

Mathematics for the interested outsider

Real and complex groups

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March 22, 2007 - Posted by | Atlas of Lie Groups


  1. You can only fit one copy of the nonzero real numbers into SL(2,R).

    What do you mean with this?


    Comment by Christian Hollersen | September 24, 2007 | Reply

  2. Christian, I composed this post in a big hurry back in March, and I made a bunch of mistakes. To be honest, at this point I don’t even remember in what sense that statement is true. I must have had some justification, but now it escapes me.

    Comment by John Armstrong | September 24, 2007 | Reply

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