Results 11 to 20 of about 15,265,231 (306)

Some codes and designs invariant under the groups $S_7$ and $S_8$ [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
We use the Key-Moori Method 1 and examine 1-designs and codes from the representations of the alternating group $A_7$. It is shown that a self-dual symmetric 2-$(35,18,9)$ design and an optimal even binary $[21,14,4]$ LCD code are found such that they ...
Reza Kahkeshani
doaj   +1 more source

Metric properties of Cayley graphs of alternating groups

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
A well known diameter search problem for finite groups with respect to its systems of generators is considered. The problem can be formulated as follows: find the diameter of a group over its system of generators.
M.S. Olshevskyi
doaj   +1 more source

Irreducible projective representations of the alternating group which remain irreducible in characteristic 2 [PDF]

open access: yesAdvances in Mathematics, 2020
For any finite group G it is an interesting question to ask which ordinary irreducible representations of G remain irreducible in a given characteristic p. We answer this question for p = 2 when G is the proper double cover of the alternating group. As a
M. Fayers
semanticscholar   +1 more source

Some results on the join graph of finite groups [PDF]

open access: yesInternational Journal of Group Theory, 2021
‎Let $G$ be a finite group which is not cyclic of prime power order‎. ‎The join graph $\Delta(G)$ of $G$ is a graph whose vertex set is the set of all proper subgroups of $G$‎, ‎which are not contained in the Frattini subgroup $G$ and two distinct ...
Zahara Bahrami, Bijan Taeri
doaj   +1 more source

Spectral Analysis of the Adjacency Matrices for Alternating Quotients of Hyperbolic Triangle Group *(3,q,r) for q < r Primes

open access: yesAxioms, 2023
Hyperbolic triangle groups are found within the category of finitely generated groups. These are topological groups formed by the reflections along the sides of a hyperbolic triangle and acting properly discontinuously on the hyperbolic plane.
Sajida Younas   +3 more
doaj   +1 more source

On the Group of Alternating Colored Permutations [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2014
The group of alternating colored permutations is the natural analogue of the classical alternating group, inside the wreath product $\mathbb{Z}_r \wr S_n$. We present a 'Coxeter-like' presentation for this group and compute the length function with respect to that presentation.
Eli Bagno, David Garber, Toufik Mansour
openaire   +3 more sources

New example of strongly regular graph with parameters (81,30,9,12) and a simple group A5 as the automorphism group

open access: yesExamples and Counterexamples, 2023
A new strongly regular graph with parameters (81,30,9,12) is found as a graph invariant under certain subgroup of the full automorphism group of the previously known strongly regular graph discovered in 1981 by J. H. van Lint and A. Schrijver.
Dean Crnković, Andrea Švob
doaj   +1 more source

Alternating Group Lasso for Block-Term Tensor Decomposition and Application to ECG Source Separation

open access: yesIEEE Transactions on Signal Processing, 2020
In some applications, blind source separation can be performed by computing an approximate block-term tensor decomposition (BTD), under much milder constraints than matrix-based techniques.
J. H. D. M. Goulart   +4 more
semanticscholar   +1 more source

The 4-Component Connectivity of Alternating Group Networks [PDF]

open access: yesTheoretical Computer Science, 2018
The l-component connectivity (or l-connectivity for short) of a graph G, denoted by κ l ( G ) , is the minimum number of vertices whose removal from G results in a disconnected graph with at least l components or a graph with fewer than l vertices.
Jou-Ming Chang   +3 more
semanticscholar   +1 more source

Alternating Groups as Collineation Groups

open access: yesJournal of Algebra, 2000
A collineation group \(G\) of a projective plane \(\pi\) is called totally irregular if each \(G\)-orbit of points is irregular, that is, the stabiliser of any point in \(G\) is not \(1\). In the paper under review, the authors prove that only finitely many alternating groups can be totally irregular collineation groups of projective planes. Precisely,
UFRj/Uenf, Brazil ( host institution )   +2 more
openaire   +3 more sources

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