Results 31 to 40 of about 167 (114)

On θ-commutators and the corresponding non-commuting graphs

open access: yesOpen Mathematics, 2017
The θ-commutators of elements of a group with respect to an automorphism are introduced and their properties are investigated. Also, corresponding to θ-commutators, we define the θ-non-commuting graphs of groups and study their correlations with other ...
Shalchi S., Erfanian A., Farrokhi DG M.
doaj   +1 more source

Eccentric topological properties of a graph associated to a finite dimensional vector space

open access: yesMain Group Metal Chemistry, 2020
A topological index is actually designed by transforming a chemical structure into a number. Topological index is a graph invariant which characterizes the topology of the graph and remains invariant under graph automorphism.
Liu Jia-Bao   +5 more
doaj   +1 more source

Dominance, dependence and interdependence in linear structures. A theoretical model and an application to the international trade flows [PDF]

open access: yes, 2013
Classification AMS : 05 - Combinatorics for finite fields/05C - Graphs theory for applications of graphs/05C25 - Graphs and groups 05 - Combinatorics for finite fields/05C - Graphs theory for applications of graphs/05C69 - Dominating sets, independent ...
Lantner, Roland, Lebert, Didier
core   +2 more sources

Classifying cubic symmetric graphs of order 88p and 88p 2

open access: yesOpen Mathematics
For a simple graph Γ\Gamma , Γ\Gamma is said to be ss-regular, provided that the automorphism group of Γ\Gamma regularly acts on the set consisting of ss-arcs of Γ\Gamma .
Zhai Liangliang
doaj   +1 more source

On Perfectness of Intersection Graph of Ideals of ℤn

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this short paper, we characterize the positive integers n for which intersection graph of ideals of ℤn is perfect.
Das Angsuman
doaj   +1 more source

Remark on subgroup intersection graph of finite abelian groups

open access: yesOpen Mathematics, 2020
Let G be a finite group. The subgroup intersection graph Γ(G)\text{Γ}(G) of G is a graph whose vertices are non-identity elements of G and two distinct vertices x and y are adjacent if and only if |〈x〉∩〈y〉|>1|\langle x\rangle \cap \langle y\rangle
Zhao Jinxing, Deng Guixin
doaj   +1 more source

The intersection graph of graded submodules of a graded module

open access: yesOpen Mathematics, 2022
In this article, we introduce and study the intersection graph of graded submodules of a graded module. Let MM be a left GG-graded RR-module. We define the intersection graph of GG-graded RR-submodules of MM, denoted by Γ(G,R,M)\Gamma \left(G,R,M), to be
Alraqad Tariq
doaj   +1 more source

Analysis of the Wiener Index for Graph Families Generated by Subdivision‐Based Double Join and Double Corona Products

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
Among the diverse types of graph products, the double join and double corona operations have remained central to many recent developments in graph theory, offering fresh insights and problem‐solving strategies. Subdivision graphs, in particular, serve as an essential tool for examining how structural modifications along edges influence the overall ...
M. Vimal   +3 more
wiley   +1 more source

Generalized Munn rings

open access: yesOpen Mathematics, 2022
Generalized Munn rings exist extensively in the theory of rings. The aim of this note is to answer when a generalized Munn ring is primitive (semiprimitive, semiprime and prime, respectively).
Guo Junying, Guo Xiaojiang
doaj   +1 more source

On the Presentation and Cayley Graph of the Bruck–Reilly Idealization Semigroup

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
Transferring constructions between different algebraic structures often reveals deep connections and enables the application of techniques from one theory to another. The idealization of the module over a ring, introduced by Nagata in 1962, has been a powerful tool in commutative algebra for decades.
Suha Wazzan   +3 more
wiley   +1 more source

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