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Alexander Thumm

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

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  • Member for 8 years, 2 months
  • 995 profile views
  • Last seen Nov 5 '13 at 18:34

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Top posts (81) All Questions Answers | Votes Newest

53 Why are gauge integrals not more popular? Mar 21 '11
21 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
19 In set theory, how are real numbers represented as sets? Sep 8 '11
17 How many connected components does $\mathrm{GL}_n(\mathbb R)$ have? Jan 21 '12
14 An example of an infinite non-abelian solvable group Dec 14 '11
14 Prove that $b\mid a \implies (n^b-1)\mid (n^a-1)$ Mar 22 '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 Homeomorphism of the Disk Jun 19 '11
10 Does $a_n + a_{n+1} + a_{n+2} \to 0$ imply $a_n \to 0$? Mar 30 '12
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