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Mathematics
Jendrik Stelzner's user avatar
Jendrik Stelzner's user avatar
Jendrik Stelzner's user avatar
Jendrik Stelzner
  • Member for 8 years, 7 months
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Sometimes I do mathematics.

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Top posts
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35
How to prove that a finite-dimensional linear subspace is a closed set
Jan 10, 2016
21
Is every compact space locally compact?
Jan 30, 2016
20
Jordan-Chevalley vs Jordan normal decomposition
Sep 10, 2017
18
Number of $k$-dimensional subspaces in $V$
Jan 5, 2016
15
Examples of Induced Representations of Lie Algebras
Jan 3, 2016
15
What are the eigenvalues of $\operatorname{ad}x$?
Sep 4, 2017
14
Subgroup of $\mathbb{C}^*$ such that $\mathbb{C}^*/H \cong \mathbb{R}^*$
Jan 6, 2016
13
In Borel-Cantelli lemma, what is the limit superior?
Jan 4, 2016
13
Is $\mathrm{U}(\mathfrak{a} \oplus \mathfrak{b}) \cong \mathrm{U}(\mathfrak{a}) \otimes \mathrm{U}(\mathfrak{b})$ over a commutative ring?
Nov 23, 2020
12
Does every polynomial over a finite field have a square root modulo an irreducible polynomial?
Jun 10, 2018
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11
Scaling of delimiters and \widetilde does not work with Libertinus
7
Missing space with DeclarePairedDelimiter
7
Whether to use `number` or `volume` in the bib file for a book numbered in a series?
6
How can I write a tower of unions?
6
\usetikzlibrary{babel} does not work in exsheets’ question environment