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Borromean
  • Member for 7 years, 11 months
  • Last seen more than 2 years ago
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question
18
Wu formula for manifolds with boundary
Apr 17, 2019
question
13
Cohomology of $ko,tmf,MSpin,MString$ with coefficients $\mathbb{Z}/p$ for odd primes $p$
Apr 8, 2018
question
11
The set of homotopy classes of maps between compact manifolds is countable
Dec 16, 2016
question
11
Madsen-Tillmann spectrum $MTE$ of the group $E$ which is defined in Freed-Hopkins's paper
Feb 26, 2019
question
10
Cell structures of Dold manifold and Wu manifold
Sep 2, 2018
question
8
Generalize Wu formula to general Bockstein homomorphisms
Jan 15, 2019
question
8
Cobordism invariants: topological v.s. geometric
Mar 25, 2020
answer
7
n-cocycles of finite abelian groups from cohomology group
Nov 15, 2017
question
6
Cell structures of simply-connected 5-manifolds (classified by Barden's 1965 paper)
Nov 12, 2018
question
6
Pants decomposition and moduli space of $\Sigma_g$ for $g>1$
Oct 11, 2020
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11
Cohomology of $(S^2\times S^2)/\mathbb{Z}_4$
8
Is a principal $\mathbb{Z}_2\ltimes PSU(4)$-bundle over a 3-manifold $M$ equivalent to an element in $H^1(M,\mathbb{Z}_2)\times H^2(M,\mathbb{Z}_4)$?
6
Cohomology groups $H^*(B(\mathbb{Z}_2\ltimes PSU(4)),\mathbb{Z}_2)$ for $*\le3$