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Jul 3, 2012 at 11:35 vote accept ronggang
Jul 3, 2012 at 0:08 answer added YCor timeline score: 2
Jul 2, 2012 at 20:27 history edited Jim Humphreys CC BY-SA 3.0
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Jul 2, 2012 at 20:24 answer added Jim Humphreys timeline score: 2
Jul 2, 2012 at 17:38 comment added Konrad Voelkel An english source on a generalization of G+ is ams.org/mathscinet-getitem?mr=2473747 a paper of Petrov and Stavrova defining the elementary subgroup of an isotropic reductive group (of rank greater than 1) over a general ring, which reduces to Tits' G+ in the case of a field.
Jul 2, 2012 at 16:24 history asked ronggang CC BY-SA 3.0