Xiaolei Wu

Member for 14 years, 9 months
Last seen more than a month ago

wuxiaolei.wordpress.com
Berlin, Germany

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gr.group-theory

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Questions

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21

Is every locally connected subset of Euclidean space R^n locally path connected ?

Nov 20, 2010

16

Smooth structures on the connected sum of a manifold with an Exotic sphere

Dec 8, 2010

16

Can anyone explain to me what is an assembly map?

Mar 2, 2012

16

Is it true that all real projective space $RP^n$ can not be smoothly embedded in $R^{n+1}$ for n >1

May 10, 2012

13

Kernel of linear representation of Baumslag-Solitar group

Nov 13, 2012

Answers

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11

Do the homological dimension and cohomological dimension for a group agree?

Dec 1, 2011

9

Why torsion is important in (co)homology ?

Nov 11, 2010

6

Fundamental Examples

Nov 23, 2011

4

Fundamental Examples

Nov 23, 2011

2

whitehead group of product of groups

Mar 27, 2012

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gr.group-theory

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cohomological-dimension

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homological-algebra

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homological-dimension

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group-rings

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Is it true that all real projective space $RP^n$ can not be smoothly embedded in $R^{n+1}$ for n >1

+10

Do the homological dimension and cohomological dimension for a group agree?

+10

How to prove the connected sum of two closed aspherical n-manfolds (n >2) is not asperical?

+10

Is every locally connected subset of Euclidean space R^n locally path connected ?

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