Results 11 to 20 of about 6,509 (277)

Vincular pattern avoidance on cyclic permutations

open access: diamondEnumerative Combinatorics and Applications, 2021
Pattern avoidance for permutations has been extensively studied, and has been generalized to vincular patterns, where certain elements can be required to be adjacent. In addition, cyclic permutations, i.e., permutations written in a circle rather than a line, have been frequently studied, including in the context of pattern avoidance.
Rupert Li
openalex   +5 more sources

On the permutation polytopes of some cyclic groups

open access: goldSpecial Matrices
In this article, we study the combinatorics of permutation polytopes of some cyclic groups, denoted by P⟨g⟩P\langle g\rangle where g∈Sng\in {S}_{n}. We give a formula on the dimension and the number of vertices of the smallest faces containing two given
Chen Zhi, Yang Zhiwen, Zhu Kebin
doaj   +2 more sources

Cyclic permutations for qudits in d dimensions [PDF]

open access: goldScientific Reports, 2019
AbstractOne of the main challenges in quantum technologies is the ability to control individual quantum systems. This task becomes increasingly difficult as the dimension of the system grows. Here we propose a general setup for cyclic permutations Xd in d dimensions, a major primitive for constructing arbitrary qudit gates.
Tudor-Alexandru Isdrailă   +2 more
openalex   +4 more sources

Infinity-Norm Permutation Covering Codes from Cyclic Groups [PDF]

open access: greenIEEE Transactions on Information Theory, 2017
We study covering codes of permutations with the $\ell_\infty$-metric. We provide a general code construction, which uses smaller building-block codes. We study cyclic transitive groups as building blocks, determining their exact covering radius, and showing linear-time algorithms for finding a covering codeword.
Ronen Karni, Moshe Schwartz
openalex   +4 more sources

The crossing numbers of join products of paths with three graphs of order five [PDF]

open access: yesOpuscula Mathematica, 2022
The main aim of this paper is to give the crossing number of the join product \(G^\ast+P_n\) for the disconnected graph \(G^\ast\) of order five consisting of the complete graph \(K_4\) and one isolated vertex, where \(P_n\) is the path on \(n\) vertices.
Michal Staš, Mária Švecová
doaj   +1 more source

Application of a permutation group on sasirangan pattern

open access: yesDesimal, 2021
A permutation group is a group of all permutations of some set. If the set that forms a permutation group is the n-first of natural number, then a permutation group is called a symmetry group.
Na'imah Hijriati   +3 more
doaj   +1 more source

On the crossing numbers of join products of W_{4}+P_{n} and W_{4}+C_{n} [PDF]

open access: yesOpuscula Mathematica, 2021
The crossing number \(\mathrm{cr}(G)\) of a graph \(G\) is the minimum number of edge crossings over all drawings of \(G\) in the plane. The main aim of the paper is to give the crossing number of the join product \(W_4+P_n\) and \(W_4+C_n\) for the ...
Michal Staš, Juraj Valiska
doaj   +1 more source

Cyclic permutations: Degrees and combinatorial types [PDF]

open access: yesJournal of Combinatorial Theory, Series A, 2021
This note will give an enumeration of $n$-cycles in the symmetric group ${\mathcal S}_n$ by their degree (also known as their cyclic descent number) and studies similar counting problems for the conjugacy classes of $n$-cycles under the action of the rotation subgroup of ${\mathcal S}_n$.
openaire   +2 more sources

On the crossing numbers of join products of five graphs of order six with the discrete graph [PDF]

open access: yesOpuscula Mathematica, 2020
The main purpose of this article is broaden known results concerning crossing numbers for join of graphs of order six. We give the crossing number of the join product \(G^{\ast} + D_n\), where the disconnected graph \(G^{\ast}\) of order six consists of ...
Michal Staš
doaj   +1 more source

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