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Mathematics
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user166854
  • Member for 10 years, 5 months
  • Last seen more than 7 years ago
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question
13
any $2$-dimensional rep of a finite, non-abelian simple group is trivial
Dec 20, 2014
question
10
Is there a deeper meaning to the identity ${{\sin x}\over x} = \prod_{k=1}^{\infty} \cos\left({x\over{2^k}}\right)$?
Mar 12, 2016
question
6
Example of a surjective local homeomorphism that is not a covering? [duplicate]
Jul 14, 2015
question
5
Parallelepiped $P$ circumscribed around ellipsoid $S$: length of main diagonal of $P$ depends only on $S$, formula.
Sep 12, 2015
question
5
If and only if criterion for something to be a differential ideal
Feb 26, 2016
question
4
Quadratic field, $O_K/\mathfrak{p} = \mathbb{F}_p$, $O_K/pO_K$ is a finite field of order $p^2$.
Jul 3, 2015
question
3
Open quotient of second countable space is second countable
Apr 8, 2014
question
3
Prove that $SO(n)$ is parallelizable
Apr 16, 2014
question
3
closed convex set, unique point that minimizes distance
Dec 13, 2014
question
3
$\sigma$-algebra $\mathcal{G} \subset \mathcal{F}$ is countably generated iff there is a random variable $X$ such that $\mathcal{G} = \sigma(X)$. [duplicate]
Jan 26, 2015
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10
Explaining difference between natural numbers, integers, rationals, reals, complex numbers, Gaussian integers