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Alexander Thumm

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 9 years, 4 months
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  • Last seen Nov 5 '13 at 18:34

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60 Why are gauge integrals not more popular? Mar 21 '11
22 If $S \times \Bbb{R}^k$ is homeomorphic to $T \times \Bbb{R}^k$ and $S$ is compact, can we conclude that $T$ is compact? May 8 '13
20 In set theory, how are real numbers represented as sets? Sep 8 '11
19 How many connected components does $\mathrm{GL}_n(\mathbb R)$ have? Jan 21 '12
14 Prove that $b\mid a \implies (n^b-1)\mid (n^a-1)$ Mar 22 '11
13 An example of an infinite non-abelian solvable group Dec 14 '11
12 Product of sets and supremum Jun 21 '11
11 If $S \times \Bbb{R}$ is homeomorphic to $T \times \Bbb{R}$ and $S$ is compact, can we conclude that $T$ is compact? May 7 '13
10 Topological K-theory references Apr 22 '11
10 Homeomorphism of the Disk Jun 19 '11
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