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principal-ideal-domain
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22
Geometrical interpretation of $(\sum_{k=1}^n k)^2=\sum_{k=1}^n k^3$
May 30, 2015
15
What does it mean to be functorial (in something)?
Nov 11, 2016
15
For which $n$ is $\mathbb{A}^n\setminus \{0\}$ an affine variety?
Jul 28, 2014
11
Expressing diagonal matrix using elementary matrices as generators in $\operatorname{SL}(\mathcal O_K \oplus \mathfrak a)$
Apr 29, 2021
10
Discontinuity of Greatest Integer Function
Jun 29, 2021
9
Non-Abelian group $G$ in which $x\mapsto x^3$ is a homomorphism
Sep 13, 2015
9
Group of all permutations of $\mathbb N$ that don't change the limit of series
Nov 17, 2021
9
Possible order of $ab$ when orders of $a$ and $b$ are known.
Sep 2, 2015
8
If $\frac{f(x^2)}{f(x)}=1+x+x^2+\ldots+x^7$ then what is $f(x)$?
Nov 25, 2021
8
Compact subgroup and quotient implies compactness?
Mar 21, 2017
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Determine if two files store the same content
43
Exclude folders from recent files
39
Convert InputStream into Stream<String> given a Charset
33
Hotkey for "This PC"
19
Double a stream