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Apr 24, 2012 at 13:10 vote accept Daniel Moskovich
Apr 19, 2012 at 20:08 answer added Alex Eskin timeline score: 20
Apr 19, 2012 at 15:10 answer added Qiaochu Yuan timeline score: 14
Apr 19, 2012 at 14:52 comment added Qiaochu Yuan Where are all those minus signs coming from if $A$ is positive?
Apr 19, 2012 at 11:08 answer added Marc Palm timeline score: 3
Apr 19, 2012 at 10:27 history asked Daniel Moskovich CC BY-SA 3.0