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Cyclic Permutations in Determining Crossing Numbers

open access: diamondDiscussiones Mathematicae Graph Theory, 2022
The crossing number of a graph G is the minimum number of edge crossings over all drawings of G in the plane. Recently, the crossing numbers of join products of two graphs have been studied.
Klešč Marián, Staš Michal
doaj   +4 more sources

A Cyclic Permutation Approach to Removing Spatial Dependency between Clustered Gene Ontology Terms [PDF]

open access: goldBiology
Traditional gene set enrichment analysis falters when applied to large genomic domains, where neighboring genes often share functions. This spatial dependency creates misleading enrichments, mistaking mere physical proximity for genuine biological ...
Rachel Rapoport   +3 more
doaj   +4 more sources

Existence of solutions for tripled system of fractional differential equations involving cyclic permutation boundary conditions [PDF]

open access: goldBoundary Value Problems, 2020
In this paper, we introduce and study a tripled system of three associated fractional differential equations. Prior to proceeding to the main results, the proposed system is converted into an equivalent integral form by the help of fractional calculus ...
Mohammed M. Matar   +2 more
doaj   +2 more sources

The Topological Entropy of Cyclic Permutation Maps and Some Chaotic Properties on Their MPE sets [PDF]

open access: goldComplexity, 2020
In this paper, we study some chaotic properties of s-dimensional dynamical system of the form Ψa1,a2,…,as=gsas,g1a1,…,gs−1as−1, where ak∈Hk for any k∈1,2,…,s, s≥2 is an integer, and Hk is a compact subinterval of the real line ℝ=−∞,+∞ for any k∈1,2,…,s ...
Risong Li, Tianxiu Lu
doaj   +2 more sources

Permutation Polytopes of Cyclic Groups [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
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.
Barbara Baumeister   +3 more
doaj   +4 more sources

Distributional Chaos and Sensitivity for a Class of Cyclic Permutation Maps [PDF]

open access: goldMathematics, 2023
Several chaotic properties of cyclic permutation maps are considered. Cyclic permutation maps refer to p-dimensional dynamical systems of the form φ(b1,b2,⋯,bp)=(up(bp),u1(b1),⋯,up−1(bp−1)), where bj∈Hj (j∈{1,2,⋯,p}), p≥2 is an integer, and Hj (j∈{1,2 ...
Yu Zhao   +4 more
doaj   +2 more sources

On Cyclic Schur-Positive Sets of Permutations [PDF]

open access: diamondThe Electronic Journal of Combinatorics, 2020
We introduce a notion of cyclic Schur-positivity for sets of permutations, which naturally extends the classical notion of Schur-positivity, and it involves the existence of a bijection from permutations to standard Young tableaux that preserves the cyclic descent set.
Jonathan Bloom   +2 more
openalex   +3 more sources

Analyzing random permutations for cyclic coordinate descent [PDF]

open access: bronzeMathematics of Computation, 2020
We consider coordinate descent methods on convex quadratic problems, in which exact line searches are performed at each iteration. (This algorithm is identical to Gauss-Seidel on the equivalent symmetric positive definite linear system.) We describe a class of convex quadratic problems for which the random-permutations version of cyclic coordinate ...
Stephen J. Wright, Ching-pei Lee
openalex   +3 more sources

Dynamic Injection and Permutation Coding for Enhanced Data Transmission [PDF]

open access: yesEntropy
In this paper, we propose a novel approach to enhance spectral efficiency in communication systems by dynamically adjusting the mapping between cyclic permutation coding (CPC) and its injected form.
Kehinde Ogunyanda   +2 more
doaj   +2 more sources

Descents of $\lambda$-unimodal cyclic permutations [PDF]

open access: diamondDiscrete Mathematics & Theoretical Computer Science, 2014
We prove an identity conjectured by Adin and Roichman involving the descent set of $\lambda$-unimodal cyclic permutations. These permutations appear in the character formulas for certain representations of the symmetric group and these formulas are ...
Kassie Archer
doaj   +2 more sources

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