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YCor
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Selected answers:

Centralizers of pairs in monoids of self-maps

When do two non-degenerate quadratic forms give rise to isomorphic Lie algebras?

A question about subsets of plane (or: how to apply the notion of commensurating action to a plane geometry question);

Finitely generated soluble groups with uncountably many maximal subgroups

Example of reflective subcategory of (Groups) whose reflector doesn't preserve finite products

divisors of $p^4+1$ of the form $kp+1$

Infinitely many finitely generated groups having the same Cayley graph

Do constructible sets have Krull dimension?

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56
Deleted answered question / arXiv posts based on unacknowledged MO posts
Jul 8, 2018
answer
29
What to do with links to arXiv front end?
Apr 18, 2020
question
19
Creation of "procrastination" tag
Dec 4, 2022
question
18
Deletion of on-topic comment threads
May 5, 2021
answer
18
Welcoming new user: on a recent question about connections
Dec 7, 2021
answer
17
Any policies around Dead links?
Sep 17, 2020
question
17
Noncommutative rings/algebra tags
Jan 20, 2019
question
16
Recognizing identifiable users changing user names
Jan 8, 2020
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14
To which extent can one modify another's question?
Oct 3, 2021
answer
14
Strange username
May 5, 2020
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In a topological space if there exists a loop that cannot be contracted to a point does there exist a simple loop that cannot be contracted also?
58
How can a mathematician handle the pressure to discover something new?
50
Is there a smallest group containing all finite groups?
40
Are infinite groups in which most elements have order $\leq 2$ commutative?
40
Under what conditions is the exponential map on a Lie algebra injective?

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