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There is another important and common use of the terminology `Tits Group': the group generated by certain nice representatives in an affine algebraic group of the finite Weyl group. Until there is an article on this, there should be a disambiguation page, or at least a comment at the top of this page. srostami (talk) 21:43, 26 April 2015 (UTC)
This edit changed the proposed outer automorphism from (a,b) ↦ (a,bb) to a much more complicated expression. I just checked that (a,b) ↦ (a,bb) is an inner automorphism, so was wrong. However, the proposed automorphism is explicitly written as an inner automorphism, so is also wrong. Recently an IP misunderstood conjugation as multiplication, but (a,b) ↦ (a,babab^2abababab^2) does not define an automorphism of the group, so is also wrong. An outer automorphism is given by (a,b) ↦ (a,bbabababababbababababa), found by a simple search using the GAP computer algebra system. JackSchmidt (talk) 17:42, 12 August 2009 (UTC)
This outer automorphism can be more simply written as (a,b) ↦ (a,(ab)^5b). (This is in the same class; the long string is trivially equal to (b(ba)^5))^{-1}, and preceding this by inverting b gives what I said.) 130.132.173.110 (talk) 20:32, 2 June 2017 (UTC)
Why is the name “Tits group” censored at [1]? --84.62.192.52 (talk) 09:09, 20 June 2010 (UTC)
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In § presentation, expand "where [a, b] is the commutator." to "where [a, b] is the commutator a−1b−1ab."
I could also render "sending (a, b) to (a, bbabababababbababababa)." more legible by converting it to "sending (a, b) to (a, b(ba)5b(ba)5)." but that's less important. 104.153.72.218 (talk) 18:27, 23 October 2017 (UTC)