Results 31 to 40 of about 7,638 (298)

Constructing Large Girth QC Protograph LDPC Codes Based on PSD-PEG Algorithm

open access: yesIEEE Access, 2017
For a given base graph, the lifted graph can be obtained by a copy-and-permute procedure. If the permutation is cyclic, the lifted graph corresponds to a quasi-cyclic (QC) protograph low-density parity-check (LDPC) code.
Xue-Qin Jiang   +3 more
doaj   +1 more source

The Dade group of a metacyclic $p$-group. [PDF]

open access: yes, 2003
The Dade group $D(P)$ of a finite $p$-group $P$, formed by equivalence classes of endo-permutation modules, is a finitely generated abelian group. Its torsion-free rank equals the number of conjugacy classes of non-cyclic subgroups of $P$ and it is ...
Mazza, Nadia
core   +1 more source

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

open access: yesDiscrete 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   +1 more source

Skew characters and cyclic sieving

open access: yesForum of Mathematics, Sigma, 2021
In 2010, Rhoades proved that promotion on rectangular standard Young tableaux, together with the associated fake-degree polynomial, provides an instance of the cyclic sieving phenomenon.
Per Alexandersson   +3 more
doaj   +1 more source

Cyclic permutations and evolutionary trees

open access: yesAdvances in Applied Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Charles Semple, Mike A. Steel
openaire   +1 more source

Join Products K2,3 + Cn

open access: yesMathematics, 2020
The crossing number cr ( G ) of a graph G is the minimum number of edge crossings over all drawings of G in the plane. The main goal of the paper is to state the crossing number of the join product K 2 , 3 + C n for the complete ...
Michal Staš
doaj   +1 more source

Slow Coloring Cyclic Permutation Graphs [PDF]

open access: yes, 2021
The slow coloring game is played by two players, Lister and Painter, on a graph \(G\). In round \(i\), Lister marks a nonempty subset of \(V(G)\), which we'll call \(M\). By doing this he scores \(|M|\) points.
Morris, Joan
core  

Implementation of quantum permutation algorithm with classical light [PDF]

open access: yes, 2019
We report the experimental implementation of quantum permutation algorithm using polarization and orbital angular momentum of the classical optical beam. The easy-handling optical setup to realize all eight cyclic permutation transformations for an input
Zhang, Shihao   +4 more
core   +1 more source

Chosen-Key Secure Even-Mansour Cipher from a Single Permutation

open access: yesIACR Transactions on Symmetric Cryptology, 2023
At EUROCRYPT 2015, Cogliati and Seurin proved that the 4-round Iterated Even-Mansour (IEM) cipher with Independent random Permutations and no key schedule EMIP4(k, u) = k⊕p4 ( k⊕p3 ( k⊕p2 (k⊕p1 (k⊕u))))  is sequentially indifferentiable from an ideal ...
Shanjie Xu, Qi Da, Chun Guo
doaj   +1 more source

Erdős–Szekeres theorem for cyclic permutations [PDF]

open access: yesInvolve, a Journal of Mathematics, 2019
8 pages, 2 ...
Czabarka, Éva, Wang, Zhiyu
openaire   +3 more sources

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