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Ma Ming

My real name is LI Du.

Ma Ming is my long-time pseudonym on the Internet.

I completed my PhD studies in math at the University of Göttingen, October 2014.

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11 Two pullback diagram Sep 24 '13
7 What is the co-form of Grothendieck construction? Apr 25 '14
6 A question on the Grothendieck construction Apr 3 '14
5 Compare three 2-categories of (Lie) groupoids Nov 21 '11
5 The nerve of categories preserves weak equivalence? Jul 2 '13
4 Analogue Bialgeras vs Lie bialgebras Mar 14 '11
4 Why bi-module, bi-bundle, etc? Sep 16 '11
4 Classifying map of a principal bundle Jan 19 '14
3 Bicategorical limits with parameters Apr 8 '14
3 Recognition principle for 2-categories (2-groupoids) Mar 17 '14
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