Skip to main content
Mathematics
xsnl's user avatar
xsnl's user avatar
xsnl's user avatar
xsnl
  • Member for 7 years, 5 months
  • Last seen this week
  • Moscow, Russia
Profile Activity
Stats
2,126
reputation
27k
reached
66
answers
7
questions
Communities
View all
About

mathematician wannabe

interested in linear algebra over integers and nilpotence as phenomenon

Badges
View all badges
This user doesn’t have any gold badges yet.
12
silver badges
22
bronze badges
Top tags
View all tags
79
Score
40
Posts
55
Posts %
47
Score
16
Posts
22
Posts %
24
Score
5
Posts
7
Posts %
18
Score
4
Posts
5
Posts %
12
Score
4
Posts
5
Posts %
9
Score
4
Posts
5
Posts %
Top posts
View all questions and answers
answer
15
Why is it that if a ring is simple, its center must be a field?
Apr 1, 2018
answer
12
Reference for group cohomology
Mar 19, 2018
answer
6
G be a finite group and H be a non trivial proper subgroup of index 3, then G is not simple.
Aug 19, 2018
answer
6
Classification of homology 5-spheres
Apr 27, 2018
answer
6
Homomorphisms of $\mathbb{F}_2$ that preserve $aba^{-1}b^{-1}$
Mar 27, 2018
answer
5
What are the relations in this presentation of $S_n$?
Jan 4, 2021
answer
5
Key Results of Combinatorial Group Theory.
Aug 10, 2018
answer
5
A group generated by $3$ elements such that the product of generators is in the centre
Mar 27, 2018
answer
4
Is there a term for when $d(f(x),x)$ is bounded?
Aug 19, 2023
question
4
Real content of Chebyshev sum inequality
Jul 8, 2018
Top network posts
View all network posts
36
Mistakes in Bredon's book "Topology and Geometry"?
17
Is the decomposition of the homotopy type of a complex into a bouquet unique?
14
Which abelian groups are $\varprojlim^1$ groups?
14
Example of a ring with non-finitely generated unit group?
13
The map $k \mapsto \mathbf{PGL}_2(k)$