kabenyuk

Member for 5 years, 10 months
Last seen this week

Summary

Reputation

9,363

9.4k
8.1k
6.8k

Mar
Jun
Sep
Dec

Top tag

group-theory

Next privilege

10,000 Rep.

Access moderator tools

Badges

2

12

24

Newest

Refiner

Next badge

294/500

Copy Editor

Answers

View all 363 answers

Score Activity Newest

10

Suppose $G=\left\langle x, y, t\mid x^7=y^7=t^3=1, txt^{-1}=x^2, tyt^{-1}=y\right\rangle$. Show that $y\in Z(G)$.

Dec 4, 2022

9

Compact simple group which is not a Lie group

Sep 23, 2022

8

Classification of subgroups of $(\mathbb Q,+)$ that are not finitely generated.

Aug 1, 2022

7

Example of a non normal subgroup of finite index in an infinite group

Nov 17, 2022

7

A finite group of order $mn$ with $m,n$ relatively prime, together with subgroups of orders $m, n$.

Jan 1

Questions

Score Activity Newest Views

9

The minimal partition of a triangle into pentagons

Feb 22

3

How many $4$-regular graphs of order $n$ can be constructed from graphs of order $n-1$ by removing two edges and adding one vertex?

Jun 25

1

Induced edver-free graphs

Jan 19, 2022

Tags

View all 175 tags

group-theory

311

Score

137

posts

graph-theory

206

Score

158

posts

abstract-algebra

155

Score

64

posts

linear-algebra

87

Score

56

posts

finite-groups

80

Score

29

posts

Reputation

+55

State a necessary and sufficient condition for a finite dimensional vector space $V$ over a field $F$ has precisely one basis.

+10

Showing a subgroup is a normal iff its left and right cosets (with distinct elements) are not disjoint and are equal

+10

Show that in a group $G$ of order $165=3\cdot 5\cdot 11$, the center $Z(G)$ contains a subgroup of order 11.

+10

Representing a tree as a union of several paths

Badges

View all badges

2

gold badges

Electorate

Apr 16, 2022
Fanatic

Nov 8, 2021

12

silver badges

Refiner

May 29
Strunk & White

Oct 25, 2021
Reviewer

Dec 11, 2021

24

bronze badges

graph-theory

Jul 21, 2022
group-theory

Oct 15, 2021
abstract-algebra

Nov 13, 2022

Accounts

9,363
2
12
24

611
1
3
12

594
1
4
9

101
1

Stack Overflow на русском

101
1

Active bounties (0)

Active Offered Earned

This user has no active bounties

Votes cast

1,255

upvotes

42

downvotes

1,049

question votes

248

answer votes

17

this month

12

this week

1

today