User John McVey

31 votes

2 answers

1k views

Does the symmetric group $S_{10}$ factor as a knit product of symmetric subgroups $S_6$ and $S_7$?

asked Mar 1, 2019 at 22:05

9 votes

2 answers

395 views

Are these two combinatorially-defined sets of integers disjoint?

asked Aug 22, 2019 at 17:20

7 votes

1 answer

332 views

Conjectured combinatorial non-equality

asked Aug 29, 2018 at 13:39

6 votes

2 answers

351 views

Differences between $p$-groups and $q$-groups

asked Jun 21, 2022 at 15:52

4 votes

3 answers

328 views

Is a point stabilizer in the Mathieu group $M_{20}$ half-transitive?

asked May 9, 2022 at 17:59

4 votes

2 answers

707 views

Wanted: multiple primes in $(\frac{5n}6,n)$

asked Oct 24, 2018 at 15:13

4 votes

0 answers

270 views

Has the external knit product been used to construct a previously unknown group?

asked Apr 16, 2019 at 20:20

3 votes

1 answer

213 views

Is this set of fractions dense in the interval $\big[\frac 13,\frac 12\big)$?

asked Aug 8, 2019 at 15:02

3 votes

1 answer

259 views

Growth rate of $|{\rm cd}(S_n)|$

asked Apr 9, 2019 at 14:22

3 votes

1 answer

263 views

Nonisomorphic central products on the same pair of groups?

asked Feb 12 at 17:31

0 votes

0 answers

214 views

Stories where a different definition lead to an inaccurate conclusion/a misunderstanding/etc

asked Jan 7, 2022 at 17:47

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11 Questions

Does the symmetric group $S_{10}$ factor as a knit product of symmetric subgroups $S_6$ and $S_7$?

Are these two combinatorially-defined sets of integers disjoint?

Conjectured combinatorial non-equality

Differences between $p$-groups and $q$-groups

Is a point stabilizer in the Mathieu group $M_{20}$ half-transitive?

Wanted: multiple primes in $(\frac{5n}6,n)$

Has the external knit product been used to construct a previously unknown group?

Is this set of fractions dense in the interval $\big[\frac 13,\frac 12\big)$?

Growth rate of $|{\rm cd}(S_n)|$

Nonisomorphic central products on the same pair of groups?

Stories where a different definition lead to an inaccurate conclusion/a misunderstanding/etc