Question

Permutations vs. Combinations: when to divide

score 68 · Answer 1 · 2026-04-12 03:58:58

68

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Permutations vs. Combinations: when to divide

Published on 12 Apr 2026 - 3:58

score 44 · Answer 2 · 2026-03-25 20:09:39

44

Views

Unsure about Linearized Cluster Assignments via Spectral Ordering paper

Published on 25 Mar 2026 - 20:09

score 37 · Answer 3 · 2026-04-14 05:28:47

37

Views

Proving an equivalence about permutations

Published on 14 Apr 2026 - 5:28

score 43 · Answer 4 · 2026-04-13 20:38:08

43

Views

You have a string of $4$ digits. work out the number of strings in which $0$ and $1$ cannot be included at the same time.

Published on 13 Apr 2026 - 20:38

score 185 · Answer 5 · 2026-04-15 08:09:05

185

Views

All combinations/cases of equality of 3 variables

Published on 15 Apr 2026 - 8:09

score 109 · Answer 6 · 2026-04-15 08:43:33

109

Views

the question of the step in constructing an external automorphism of the group $S_6$?

Published on 15 Apr 2026 - 8:43

score 100 · Answer 7 · 2026-03-26 17:34:40

100

Views

Computation of the commutator of permutations of $J_n$

Published on 26 Mar 2026 - 17:34

score 56 · Answer 8 · 2026-04-16 04:19:01

56

Views

$\sigma$ is a permutation of $\mathbb{N}$,then the sum $\sum\sigma(n)/n^2$ ,$N<n<4N$

Published on 16 Apr 2026 - 4:19

score 161 · Answer 9 · 2026-04-24 20:30:45

161

Views

How this kind of permutation is called in math?

Published on 24 Apr 2026 - 20:30

score 114 · Answer 10 · 2026-04-17 04:04:28

114

Views

h Numbering $8$ vertices of cube from $1$ to $8$ such that there is no 2 consecutive number adjacent

Published on 17 Apr 2026 - 4:04

score 200 · Answer 11 · 2026-04-15 08:15:27

200

Views

Optimally reversing a list by swapping

Published on 15 Apr 2026 - 8:15

score 222 · Answer 12 · 2026-04-09 17:13:07

222

Views

Derangement of selective letters in a string.

Published on 09 Apr 2026 - 17:13

score 288 · Answer 13 · 2026-04-17 02:35:49

288

Views

Number of permutations $(p_1,\dots,p_6)$ of $\{1,\dots,6\}$ such that for any $1\le k\le5,(p_1,\dots,p_k)$ is not a permutation of $\{1,\dots,k\}$

Published on 17 Apr 2026 - 2:35

score 139 · Answer 14 · 2026-04-09 15:25:58

139

Views

Derangement of letters with repitition

Published on 09 Apr 2026 - 15:25

score 21 · Answer 15 · 2026-03-25 09:47:07

21

Views

How many permutation matrices are their own transpose?

Published on 25 Mar 2026 - 9:47

List Question

Permutations vs. Combinations: when to divide

Unsure about Linearized Cluster Assignments via Spectral Ordering paper

Proving an equivalence about permutations

You have a string of $4$ digits. work out the number of strings in which $0$ and $1$ cannot be included at the same time.

All combinations/cases of equality of 3 variables

the question of the step in constructing an external automorphism of the group $S_6$?

Computation of the commutator of permutations of $J_n$

$\sigma$ is a permutation of $\mathbb{N}$,then the sum $\sum\sigma(n)/n^2$ ,$N<n<4N$

How this kind of permutation is called in math?

h Numbering $8$ vertices of cube from $1$ to $8$ such that there is no 2 consecutive number adjacent

Optimally reversing a list by swapping

Derangement of selective letters in a string.

Number of permutations $(p_1,\dots,p_6)$ of $\{1,\dots,6\}$ such that for any $1\le k\le5,(p_1,\dots,p_k)$ is not a permutation of $\{1,\dots,k\}$

Derangement of letters with repitition

How many permutation matrices are their own transpose?

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