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Tobias Kildetoft
  • Member for 11 years, 10 months
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39 votes
1 answer
1k views

Sudokus as composition tables of finite groups

20 votes
2 answers
2k views

Has this "generalized semidirect product" been studied?

16 votes
1 answer
683 views

Can torsion in the fundamental group happen in "the real world"

8 votes
1 answer
597 views

Group actions transitive on certain subsets

7 votes
0 answers
593 views

How to determine if two semidirect products are isomorphic?

6 votes
1 answer
358 views

Does any (noetherian) integral domain have a "UFD closure"?

5 votes
1 answer
229 views

Is there a simple construction of a finite solvable group with a given derived length?

4 votes
2 answers
226 views

If a finite group has all $p$-complements, is it always solvable?

4 votes
2 answers
138 views

Are there combinatorial games of finite order different from $1$ or $2$?

4 votes
1 answer
213 views

Are there non-zero combinatorial games of odd order?

3 votes
0 answers
83 views

Groups of order $n^2$ with no subgroup of order $n$ [duplicate]

3 votes
1 answer
101 views

Can the last non-zero term in the central series of an indecomposable nilpotent Lie algebra be smaller than the center?

3 votes
1 answer
937 views

If the derived subgroup is finite, does the center have finite index?

3 votes
2 answers
791 views

Irreducible representations of $\mathbb{Z}/p\mathbb{Z}$ over Galois field $\mathbb{F}_q$, $p\neq q$.

3 votes
1 answer
120 views

Given an $n$, are there infinitely many finite fields $F$ such that none of the orders of $PSL_n(F)$ divide each other?

2 votes
0 answers
108 views

Bounding the inner product in root systems.

2 votes
1 answer
349 views

Largest number of equidistant points