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Mathematics
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Qudit
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My favorite answer so far: Outer automorphisms of the infinite symmetric group

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28
What is an interpretation of the matrix exponential?
Nov 1, 2017
19
In a finite field, is there ever a homomorphism from the additive group to the multiplicative group?
Feb 18, 2015
15
Are there rings whose multiplicative identity is not the number 1 or number 1-based?
May 3, 2015
14
Given $x^9 = e$ and $x^{11} = e$ prove $x = e$.
Mar 18, 2017
10
Do $e$ and $\pi$ satisfy a non-trivial diophantine equation?
Nov 12, 2017
10
What is the mathematical meaning of the 'construction'?
Nov 18, 2017
9
A positive sequence must monotonically converges for large enough index.
Mar 18, 2017
9
Complexity of testing if a binary operation is a group
Nov 8, 2017
8
Outer automorphisms of the infinite symmetric group
Mar 5, 2015
6
Notation for the set of all integer partitions
Apr 17, 2015
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32
Why isn't more being done to avoid facilitating copy/paste homework questions?
31
Revisiting the tour of the site
6
How to get my answer accepted.
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33
Titanium Carabiner: what is its ideal use case?
25
Is liquid cooling necessary for high CPU performance over extended periods?
22
How to fight bugs when hiking?
19
Open a file with su/sudo inside Emacs
16
Why do elisp files have end of file comments?