User Shiquan Ren - MathOverflow

Shiquan Ren

Member for 9 years, 5 months
Last seen more than 1 year ago

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1,950

reputation

28k

reached

0

answers

55

questions

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lecturer & researcher

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9

silver badges

Yearling

× 9

Oct 9

22

bronze badges

Mortarboard

Aug 31, 2015
Disciplined

Dec 6, 2015
Organizer

Sep 17, 2015

Top tags

at.algebraic-topology

0

Score

40

Posts

73

Posts %

gt.geometric-topology

0

Score

26

Posts

47

Posts %

homotopy-theory

0

Score

24

Posts

44

Posts %

cohomology

0

Score

23

Posts

42

Posts %

configuration-spaces

0

Score

16

Posts

29

Posts %

group-cohomology

0

Score

6

Posts

11

Posts %

Top posts

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All Questions Answers

Score Newest

9

cohomology of classifying space of permutation groups

Oct 20, 2014

9

embedding of quaternionic projective spaces

Jan 7, 2016

8

quotient space of Eilenberg-MacLane space

Jan 13, 2016

7

kernel of the mod $2$ Bockstein on the first cohomology group

Mar 10, 2016

7

contractible configuration spaces

Mar 2, 2015

6

torsion part of homology of simplicial complexes [duplicate]

Mar 4, 2017

6

non-orientability of vector bundles induced from a symmetric group action

Mar 8, 2016

6

a question about Bockstein spectral sequence

Mar 1, 2016

6

classifying space of orthogonal groups

Nov 18, 2015

5

triviality of homology with local coefficients

Nov 25, 2020

Top network posts

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18

Every closed subset $E\subseteq \mathbb{R}^n$ is the zero point set of a smooth function

16

different definitions of Hopf algebras

15

Homotopy groups of a wedge sum

14

How to prove a commutative, with unit, Noetherian ring $A$ only has finitely many minimal prime ideals via the following step?

12

Commuting matrices are simultaneously triangularizable