User Stefan Kohl

4 votes

Integer matrix that does not belong to a free group of rank 2

answered Nov 10, 2015 at 18:38

4 votes

What is wrong with this counterexample to the Weak Bunyakovsky's conjecture and reformulation of Bunyakovsky's conjecture?

answered Dec 9, 2015 at 14:45

4 votes

Permutation search problems with no known $o(n!)$ algorithms

answered Apr 7, 2016 at 21:42

3 votes

Computer Algebra Systems that support variable sized matrices

answered Nov 21, 2015 at 21:43

3 votes

Accepted

Sum of irreducible complex character degrees for alternating groups

answered Jun 8, 2015 at 17:00

3 votes

Finite groups which have elements $g$ of order $pq$ such that the sizes of the conjugacy classes of $g^p$, of $g^q$ and of $g^{q-p}$ coincide

answered Jun 17, 2015 at 15:14

3 votes

What is the motivation and purpose of the Floretion group?

answered Jun 30, 2015 at 20:26

3 votes

Accepted

Example of a group in which centralizers of every element are non-abelian

answered Oct 27, 2015 at 22:36

3 votes

Character degrees of extensions of 2^B_2(q^2)

answered Oct 12, 2015 at 10:23

3 votes

Proving that a countable group is not finitely generated

answered Nov 19, 2022 at 16:48

3 votes

The half-life of a theorem, or Arnold's principle at work

answered Apr 9, 2023 at 9:38

3 votes

Estimate for the order of the outer automorphism group of a finite simple group

answered May 20, 2023 at 11:41

3 votes

Units in a group algebra

answered Sep 22, 2013 at 20:43

3 votes

Accepted

Graphs with polynomial volume growth

answered Oct 1, 2013 at 12:45

3 votes

Where was it first stated that there are no 4-transitive finite groups other than symmetric, alternating and Mathieu groups?

answered Jul 7, 2013 at 16:56

3 votes

Is there a highly transitive action of a finitely generated torsion simple group?

answered Jan 2, 2015 at 21:28

3 votes

Where can I find the classification of groups of order 16p?

answered Jul 13, 2014 at 13:13

3 votes

Examples of eventual counterexamples

answered Mar 12, 2015 at 9:27

3 votes

Examples of eventual counterexamples

answered Mar 8, 2015 at 11:28

3 votes

Is the conjugacy problem solvable in $Out(F_n)$?

answered Dec 3, 2013 at 17:40

3 votes

Equivalence classes of (2,3)-pairs in PSL(2,q)

answered Oct 1, 2014 at 16:57

2 votes

Does a classification of simultaneous conjugacy classes in a product of symmetric groups exist?

answered Oct 17, 2014 at 13:31

2 votes

Accepted

Finding a suitable number

answered Jun 21, 2014 at 20:51

2 votes

Accepted

Dixon's Theorem

answered Nov 25, 2013 at 16:02

2 votes

A generalization of Schur Numbers

answered Dec 3, 2013 at 11:21

2 votes

How close can one get to the missing finite projective planes?

answered Mar 29, 2015 at 10:40

2 votes

Proof or citation?

answered Jul 14, 2014 at 15:56

2 votes

Infinite Partitions of the Primes and Sums of Reciprocals (Revised)

answered Nov 5, 2013 at 12:58

2 votes

Minimal period of arithmetic progressions occurring in sets of positive density.

answered Jan 6, 2013 at 23:42

2 votes

submit the second part of a paper

answered Jan 19, 2013 at 21:54

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150 Answers

Integer matrix that does not belong to a free group of rank 2

What is wrong with this counterexample to the Weak Bunyakovsky's conjecture and reformulation of Bunyakovsky's conjecture?

Permutation search problems with no known $o(n!)$ algorithms

Computer Algebra Systems that support variable sized matrices

Sum of irreducible complex character degrees for alternating groups

Finite groups which have elements $g$ of order $pq$ such that the sizes of the conjugacy classes of $g^p$, of $g^q$ and of $g^{q-p}$ coincide

What is the motivation and purpose of the Floretion group?

Example of a group in which centralizers of every element are non-abelian

Character degrees of extensions of 2^B_2(q^2)

Proving that a countable group is not finitely generated

The half-life of a theorem, or Arnold's principle at work

Estimate for the order of the outer automorphism group of a finite simple group

Units in a group algebra

Graphs with polynomial volume growth

Where was it first stated that there are no 4-transitive finite groups other than symmetric, alternating and Mathieu groups?

Is there a highly transitive action of a finitely generated torsion simple group?

Where can I find the classification of groups of order 16p?

Examples of eventual counterexamples

Examples of eventual counterexamples

Is the conjugacy problem solvable in $Out(F_n)$?

Equivalence classes of (2,3)-pairs in PSL(2,q)

Does a classification of simultaneous conjugacy classes in a product of symmetric groups exist?

Finding a suitable number

Dixon's Theorem

A generalization of Schur Numbers

How close can one get to the missing finite projective planes?

Proof or citation?

Infinite Partitions of the Primes and Sums of Reciprocals (Revised)

Minimal period of arithmetic progressions occurring in sets of positive density.

submit the second part of a paper