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Sep 9, 2011 at 1:49 vote accept Pengfei
Sep 4, 2011 at 9:12 answer added R W timeline score: 2
Sep 4, 2011 at 3:47 history edited Pengfei CC BY-SA 3.0
added 127 characters in body; added 1 characters in body
Sep 4, 2011 at 3:44 comment added Pengfei It should be pointed out that conservativity here is weaker than the usual measure--preserving requirement.
Sep 4, 2011 at 3:41 history asked Pengfei CC BY-SA 3.0