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Apr 26, 2012 at 1:32 answer added user6976 timeline score: 5
Apr 26, 2012 at 0:30 comment added Benjamin Steinberg This preorder is Green's J-order on the idempotents of Scheins inverse semigroup of cosets of G.
Apr 25, 2012 at 22:12 answer added Tom Goodwillie timeline score: 7
Apr 25, 2012 at 22:00 history asked Linxiao CC BY-SA 3.0