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S Nov 20, 2016 at 15:59 history suggested evgeny CC BY-SA 3.0
I corrected wrongly: not SL_2, but its subgroup; see page 8, a paragraph starting with "Suppose that V has..."
Nov 20, 2016 at 15:29 review Suggested edits
S Nov 20, 2016 at 15:59
S Nov 20, 2016 at 15:21 history suggested evgeny CC BY-SA 3.0
details on counterexample; unfortunately, I do not understand whether A is smooth; details on article; changed .ps to .pdf
Nov 20, 2016 at 15:05 review Suggested edits
S Nov 20, 2016 at 15:21
Oct 21, 2009 at 3:01 history answered Charles Siegel CC BY-SA 2.5