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Gao 2Man
  • Member for 12 years
  • Last seen more than 4 years ago
  • Singapore
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I am a graduate student in algebraic topology under Wu jie at the National University of Singapore.
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question
21
Why is the classifying space of the natural numbers homotopy equivalent to the circle?
Apr 14, 2012
question
9
Is there a long exact sequence associated to a ramified covering?
Mar 6, 2011
question
6
Null-homotopy of diagonal map
Feb 22, 2011
question
5
Does the classifying space of monoids commute with wedge sum up to weak equivalence?
May 9, 2012
question
3
Is there a counterexample to this stronger version of James homotopy splitting?
Dec 17, 2011
question
2
Examples of Simplicial Groupoids in Nature
Dec 25, 2011
question
2
Is the nerve of a category a fully faithfully functor up to homotopy?
Dec 14, 2011
question
2
Is the homotopy of a primitively generated Hopf algebra still primitively generated?
Feb 13, 2011
question
2
Does the following categorial sum preserve weak equivalences?
Oct 2, 2012
question
1
Is the nerve of a groupoid an EM space?
Dec 7, 2011
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14
How to prove that my sum coincides with a sequence on the Online Encyclopedia of Integer Sequences?
5
Split short exact sequences and the associated graded algebra

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