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Desura

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

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  • Member for 3 years, 8 months
  • 108 profile views
  • Last seen 13 hours ago

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Top posts (59) All Questions Answers | Votes Newest

7 Tic-Tac-Toe on the Real Projective Plane is a trivial first-player win in three moves Mar 9
4 Can every compact subset of $\Bbb R^n$ be written as a disjoint union of compact subsets, where each of them are path-connected? Apr 11 '16
4 Non constructive proof that positive measurable functions can be approximated by a sequence of simple functions? Jun 8 '17
4 Why isn't a continuous bijection from a locally compact space to a Hausdorff space an homeomorphism? Dec 24 '17
3 (Levi) Decomposition of group of upper triangular matrices with block matrices on its diagonal into two subgroups Jan 11 '17
3 Probability of getting the first red ball before the first blue ball Jan 18 '17
3 Why is $f(A \cup B) = f(A) \cup f(B)$ but $f(A \cap B) \subseteq f(A) \cap f(B)$? Sep 21 '15
3 Evaluate $\lim \limits_{n\rightarrow\infty}\sin^2(\pi\sqrt{n^2 + n})$ Dec 22 '15
3 A polynomial $p(x) \in \Bbb R_{2n-1}[x]$, $p(0) = 0$, $p(x) \geq 0 \ \forall x \geq 0$, can be written as $p(x) = xq_1(x)^2 + q_2(x)^2$ Dec 2 '18
3 How to prove a cross is not locally homeomorphic to an euclidean space? Oct 11 '17
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