Mathematics
user avatar
user avatar
user avatar
ckefa
  • Member for 5 months
  • Last seen this week
Profile Activity
Stats
1,575
reputation
2k
reached
40
answers
2
questions
Communities
Badges
View all badges
This user doesn’t have any gold badges yet.
1
silver badge
10
bronze badges
Top tags
View all tags
19
Score
7
Posts
17
Posts %
17
Score
10
Posts
24
Posts %
13
Score
6
Posts
14
Posts %
13
Score
3
Posts
7
Posts %
12
Score
6
Posts
14
Posts %
11
Score
4
Posts
10
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
6
If the cosets of $S\subseteq G$ partition $G$, must $S$ be a coset of a subgroup of $G$?
Jan 10
answer
5
Will this determinant of the matrix of determinants of the transformations of the group applied to a square matrix always be zero?
Jan 18
answer
5
Is there a semigroup which admits no involution?
May 25
answer
5
Prove $(n-1)! + 1 = n^2$ has only one integer solution
May 31
answer
4
Let $M=2\times 3^2\times 5^3\times 7^4$. Let $a_1,a_2,...,a_{120}$ be the positive divisors of $M$. Calculate $\prod_{i=1}^{120} a_i$
Mar 2
answer
4
Proof of Pythagorean quadruple
Mar 7
answer
4
(Quasi)-Galois radii of an integer
Jan 20
question
4
A groupoid that is not a fundamental groupoid
Jan 21
answer
4
Prove that cardinality of union of $2$ finite sets is less than or equal to the sum of their cardinality.
Jan 8
answer
3
How to prove that $Hom_A(V,W)$ and $End_A(V)$ are noetherian
Jan 9
Top network posts
View all network posts
13
Quasi-isometry groups of metric spaces
11
Which results in probabilistic group theory generalize from finite groups to compact Hausdorff groups (and which don't)?
7
Strategy-stealing in chess
6
Is there a natural topology on the automorphism group of a topological group?

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.