Question

Seeking a combinatorial proof of $2n^{n-3} = \sum_{m=1}^{n-1}\binom{n-2}{m-1}m^{m-2}(n-m)^{n-m-2}$

score 214 · Answer 1 · 2020-06-21 00:06:53

214

Views

Seeking a combinatorial proof of $2n^{n-3} = \sum_{m=1}^{n-1}\binom{n-2}{m-1}m^{m-2}(n-m)^{n-m-2}$

Published on 21 Jun 2020 - 0:06

score 148 · Answer 2 · 2020-06-24 20:44:43

148

Views

Geometric Group Theory, Meier lemma 11.30 about a two-ended groups $G$

Published on 24 Jun 2020 - 20:44

score 165 · Answer 3 · 2020-06-26 15:04:24

165

Views

Groups with two ends: showing that either $E\Delta gE$ is finite or $(E\Delta gE)^\complement$ is finite.

Published on 26 Jun 2020 - 15:04

score 65 · Answer 4 · 2016-08-07 10:49:58

65

Views

Injective projection of subtree onto maximal subtree

Published on 07 Aug 2016 - 10:49

score 71 · Answer 5 · 2016-08-28 23:18:26

71

Views

What's wrong with my attempt at proving that the automorphisms of a colored Cayley graph of a group are isomorphic to that group?

Published on 28 Aug 2016 - 23:18

score 249 · Answer 6 · 2016-10-15 23:54:38

249

Views

Cayley Graph intuition

Published on 15 Oct 2016 - 23:54

score 212 · Answer 7 · 2016-12-02 22:02:40

212

Views

symmetry group of a cayley graph of finitely generated groups

Published on 02 Dec 2016 - 22:02

score 332 · Answer 8 · 2016-12-06 02:46:51

332

Views

Show that a graph cannot be a Cayley graph

Published on 06 Dec 2016 - 2:46

score 152 · Answer 9 · 2016-12-11 03:58:57

152

Views

What programs can be used to construct a Cayley Graph?

Published on 11 Dec 2016 - 3:58

score 125 · Answer 10 · 2017-02-01 14:43:56

125

Views

The automorphisms of the Cayley diagram of the cyclic group

Published on 01 Feb 2017 - 14:43

score 132 · Answer 11 · 2017-02-01 16:53:44

132

Views

Automorphism group of labelled Cayley graph

Published on 01 Feb 2017 - 16:53

score 349 · Answer 12 · 2017-02-01 23:39:23

349

Views

Can two groups be the same if their digraphs/cayley graphs) are different?

Published on 01 Feb 2017 - 23:39

score 64 · Answer 13 · 2017-03-11 14:26:21

64

Views

How should multiplication in groups be interpreted?

Published on 11 Mar 2017 - 14:26

score 226 · Answer 14 · 2017-03-14 01:46:02

226

Views

Fundamental group of a Cayley Graph used to Calculate Kernels of Group Morphisms

Published on 14 Mar 2017 - 1:46

score 28 · Answer 15 · 2023-06-29 18:46:07

28

Views

Isomorphic (un)coloured Cayley (di)graphs of non-isomorphic groups

Published on 29 Jun 2023 - 18:46

List Question

Seeking a combinatorial proof of $2n^{n-3} = \sum_{m=1}^{n-1}\binom{n-2}{m-1}m^{m-2}(n-m)^{n-m-2}$

Geometric Group Theory, Meier lemma 11.30 about a two-ended groups $G$

Groups with two ends: showing that either $E\Delta gE$ is finite or $(E\Delta gE)^\complement$ is finite.

Injective projection of subtree onto maximal subtree

What's wrong with my attempt at proving that the automorphisms of a colored Cayley graph of a group are isomorphic to that group?

Cayley Graph intuition

symmetry group of a cayley graph of finitely generated groups

Show that a graph cannot be a Cayley graph

What programs can be used to construct a Cayley Graph?

The automorphisms of the Cayley diagram of the cyclic group

Automorphism group of labelled Cayley graph

Can two groups be the same if their digraphs/cayley graphs) are different?

How should multiplication in groups be interpreted?

Fundamental group of a Cayley Graph used to Calculate Kernels of Group Morphisms

Isomorphic (un)coloured Cayley (di)graphs of non-isomorphic groups

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