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Questions
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The Torelli group

feb 16 12 at 18:49 hungrygrad 51●1●4

 
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Finding a presentation for G from a known presentation of G/N [closed]

nov 3 10 at 9:36 Derek Holt 7,071●1●14●29

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Presentation for an infinite index subgroup of the braid group

jul 5 at 14:58 Ian Agol 24.3k●1●34●86

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Comparing geometric intersection numbers.

apr 26 10 at 7:57 jmortada 71●3