MathOverflow
YCor's user avatar
YCor's user avatar
YCor's user avatar
YCor
  • Member for 11 years, 8 months
  • Last seen this week
Profile Activity
Stats
53,968
reputation
48k
reached
31
answers
20
questions
Communities
About

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?

Badges
View all badges
This user doesn’t have any gold badges yet.
20
silver badges
35
bronze badges
Top tags
View all tags
146
Score
37
Posts
73
Posts %
46
Score
3
Posts
6
Posts %
23
Score
23
Posts
45
Posts %
14
Score
3
Posts
6
Posts %
7
Score
11
Posts
22
Posts %
1
Score
5
Posts
10
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
question
57
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
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
question
14
To which extent can one modify another's question?
Oct 3, 2021
answer
14
Strange username
May 5, 2020
answer
13
News of potential interest to the MO community
Dec 7, 2021
Top network posts
View all network posts
65
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?
46
Is there a smallest group containing all finite groups?
39
Are infinite groups in which most elements have order $\leq 2$ commutative?
39
Under what conditions is the exponential map on a Lie algebra injective?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.