Results 121 to 130 of about 235,315 (244)

On mathematical structures on pairwise comparisons matrices with coefficients in an abstract group arising from quantum gravity

open access: yesHeliyon, 2019
We describe the mathematical properties of pairwise comparisons matrices with coefficients in an arbitrary group. Inspired by the well-known mathematical structures of quantum gravity and lattice gauge theories in physics and by the application of this ...
Jean-Pierre Magnot
doaj  

Skew-morphisms of elementary abelian 𝑝-groups

open access: yesJournal of Group Theory
Abstract A skew-morphism of a finite group 𝐺 is a permutation 𝜎 on 𝐺 fixing the identity element, and for which there exists an integer-valued function 𝜋 on 𝐺 such that σ
Du, Shaofei   +3 more
openaire   +2 more sources

$CI$-property for decomposable Schur rings over an abelian group [PDF]

open access: yesarXiv, 2018
A Schur ring over a finite group is said to be decomposable if it is the generalized wreath product of Schur rings over smaller groups. In this paper we establish a sufficient condition for a decomposable Schur ring over the direct product of elementary abelian groups to be a $CI$-Schur ring.
arxiv  

The elementary theory of abelian groups

open access: yesAnnals of Mathematical Logic, 1972
Edward R. Fischer, Paul C. Eklof
openaire   +2 more sources

Graph Labelings in Elementary Abelian 2-Groups

open access: yesTokyo Journal of Mathematics, 1997
Let $n\geq 2$ be an integer. We show that if $G$ is a graph such that every component of $G$ has order at least 3, and $|V(G)|\leq 2^n$ and $|V(G)|\neq 2^n-2$, then there exists an injective mapping $\varphi$ from $V(G)$ to an elementary abelian 2-group of order $2^n$ such that for every component $C$ of $G$, the sum of $\varphi(x)$ as $x$ ranges over $
openaire   +3 more sources

Strongly Base-Two Groups. [PDF]

open access: yesVietnam J Math, 2023
Burness TC, Guralnick RM.
europepmc   +1 more source

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