Mathematics
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Ben
  • Member for 7 years, 10 months
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All Questions Answers
Score Newest
question
13
There is only one interesting measure space
Feb 4, 2015
answer
9
How is going around the circle once in each direction homotopic to a point?
Jan 30, 2019
answer
9
Do the groups $\operatorname{SL}$, $\operatorname{PGL}$, and $\operatorname{PSL}$ over a field $K$ always have the same automorphism group?
Apr 5
answer
8
Proof that the solutions are algebraic functions
Nov 29, 2015
answer
7
Local homeomorphisms which are not covering map?
Jul 2, 2015
answer
7
Questions about Formal Schemes
Jul 25, 2019
answer
6
Dual space of polynomial algebra
Aug 5, 2016
answer
6
$H,K$ be subgroups of an infinite abelian group $G$ such that $K \subseteq H$ and $G \cong K$ , then is it true that $G\cong H$ ?
Aug 29, 2016
answer
6
What is $Ext^1(\overline{\mathbb{Q}}^\times, \overline{\mathbb{Q}})$ in abelian groups?
Jan 21, 2019
answer
6
The action of the group $\Gamma=\mathbb{Z}$ on the manifold $\mathbb{C}^n-\{0\}$
Jan 24, 2019

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