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Jan 5, 2011 at 7:14 vote accept Quanting Zhao
Jan 4, 2011 at 15:55 comment added HJRW I suggest you rewrite the question as follows: 'What is the Nielsen extension of a Riemann surface?'
Jan 4, 2011 at 15:02 answer added Igor Rivin timeline score: 1
Jan 4, 2011 at 10:06 history edited Quanting Zhao CC BY-SA 2.5
added 34 characters in body
Jan 4, 2011 at 9:13 history asked Quanting Zhao CC BY-SA 2.5