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Cyclic words are equivalence classes of cyclic permutations of ordinary words. When a group is given by a rewriting relation, a rewriting system on cyclic words is induced, which is used to construct algorithms to find minimal length…

Group Theory · Mathematics 2012-11-14 Volker Diekert , Andrew Duncan , Alexei Myasnikov

We consider uniform random permutations in classes having a finite combinatorial specification for the substitution decomposition. These classes include (but are not limited to) all permutation classes with a finite number of simple…

Permutations are usually enumerated by size, but new results can be found by enumerating them by inversions instead, in which case one must restrict one's attention to indecomposable permutations. In the style of the seminal paper by Simion…

Combinatorics · Mathematics 2025-05-28 Atli Fannar Franklín

We show that almost all permutations have some power that is a cycle of prime length. The proof includes a theorem giving a strong upper bound on the proportion of elements of the symmetric group having no cycles with length in a given set.

Group Theory · Mathematics 2019-12-03 William R. Unger

In this paper we give a classification of classes of involutions on an automorphism group of an octonion algebra over fields of characteristic 2, and describe the classes of their fixed point groups.

Group Theory · Mathematics 2016-11-30 John Hutchens , Nathaniel Schwartz

The cycle polynomial of a finite permutation group $G$ is the generating function for the number of elements of $G$ with a given number of cycles: \[F_G(x) = \sum_{g\in G}x^{c(g)},\] where $c(g)$ is the number of cycles of $g$ on $\Omega$.…

Combinatorics · Mathematics 2019-05-31 Peter J. Cameron , Jason Semeraro

We show that there is a bijection between real-linear automorphisms of the multicomplex numbers of order $n$ and signed permutations of length $2^{n-1}$. This allows us to deduce a number of results on the multicomplex numbers, including a…

Rings and Algebras · Mathematics 2022-11-28 Nicolas Doyon , Pierre-Olivier Parisé , William Verreault

We investigate the combinatorics and geometry of permutation polytopes associated to cyclic permutation groups, i.e., the convex hulls of cyclic groups of permutation matrices. We give formulas for their dimension and vertex degree. In the…

Combinatorics · Mathematics 2011-09-02 Barbara Baumeister , Christian Haase , Benjamin Nill , Andreas Paffenholz

We introduce a new permutation statistic, namely, the number of cycles of length $q$ consisting of consecutive integers, and consider the distribution of this statistic among the permutations of $\{1,2,...,n\}$. We determine explicit…

Combinatorics · Mathematics 2015-03-17 Richard A. Brualdi , Emeric Deutsch

We show that all permutations in $S_n$ can be generated by affine unicritical polynomials. We use the $\operatorname{PGL}$ group structure to compute the cycle structure of permutations with low Carlitz rank. The tree structure of the group…

Number Theory · Mathematics 2021-03-22 Anna Chlopecki , Juliano Levier-Gomes , Wayne Peng , Alex Shearer , Adam Towsley

We find the complete equivalence group of a class of (1+1)-dimensional second-order evolution equations, which is infinite-dimensional. The equivariant moving frame methodology is invoked to construct, in the regular case of the…

Mathematical Physics · Physics 2019-12-04 Elsa Dos Santos Cardoso-Bihlo , Alexander Bihlo , Roman O. Popovych

We investigate a generalization of stacks that we call $\mathcal{C}$-machines. We show how this viewpoint rapidly leads to functional equations for the classes of permutations that $\mathcal{C}$-machines generate, and how these systems of…

Combinatorics · Mathematics 2018-01-30 Michael H. Albert , Cheyne Homberger , Jay Pantone , Nathaniel Shar , Vincent Vatter

In this paper we look at polynomials arising from statistics on the classes of involutions, $I_n$, and involutions with no fixed points, $J_n$, in the symmetric group. Our results are motivated by F. Brenti's conjecture which states that…

Combinatorics · Mathematics 2007-05-23 W. M. B. Dukes

We study the asymptotic behavior of short cycles of random permutations with cycle weights. More specifically, on a specially constructed metric space whose elements encode all possible cycles, we consider a point process containing all…

Probability · Mathematics 2025-02-11 Oleksii Galganov , Andrii Ilienko

We give an account on what is known on the subject of permutation matchings, which are bijections of a finite regular semigroup that map each element to one of its inverses. This includes partial solutions to some open questions, including…

Combinatorics · Mathematics 2023-09-26 Peter M. Higgins

We study the cycle structure of words in several random permutations. We assume that the permutations are independent and that their distribution is conjugation invariant, with a good control on their short cycles. If, after successive…

Combinatorics · Mathematics 2023-10-24 Mohamed Slim Kammoun , Mylène Maïda

This paper defines and develops cycle indices for the finite classical groups. These tools are then applied to study properties of a random matrix chosen uniformly from one of these groups. Properties studied by this technique will include…

Group Theory · Mathematics 2007-05-23 Jason Fulman

The present work pursues the aim to draw attention to unique possibilities of the skew-symmetric differential forms. At present the theory of skew-symmetric exterior differential forms that possess invariant properties has been developed.…

General Mathematics · Mathematics 2007-05-23 L. I. Petrova

Problem 8.1 in Astaiza et. al. asks about the relationship between the cycle decomposition of a permutation $\sigma$ and that of its symmetric tensor power $\sigma ^{\odot k}$. In this paper, we investigate this question and give formulas…

Combinatorics · Mathematics 2026-05-27 Sebastian Caballero , Diego Villamizar

This article is an expository account of the theory of twisted commutative algebras, which simply put, can be thought of as a theory for handling commutative algebras with large groups of linear symmetries. Examples include the coordinate…

Commutative Algebra · Mathematics 2012-09-25 Steven V Sam , Andrew Snowden