Results 61 to 70 of about 1,383 (108)

Cyclic Partitions of Complete and Almost Complete Uniform Hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
We consider cyclic partitions of the complete k-uniform hypergraph on a finite set V, minus a set of s edges, s ≥ 0. An s-almost t-complementary k-hypergraph is a k-uniform hypergraph with vertex set V and edge set E for which there exists a permutation ...
Dilbarjot, Gosselin Shonda Dueck
doaj   +1 more source

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 the Genus of the Idempotent Graph of a Finite Commutative Ring

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2021
Let R be a finite commutative ring with identity. The idempotent graph of R is the simple undirected graph I(R) with vertex set, the set of all nontrivial idempotents of R and two distinct vertices x and y are adjacent if and only if xy = 0.
Belsi G. Gold, Kavitha S., Selvakumar K.
doaj   +1 more source

Classification of Filiform Lie Algebras up to dimension 7 Over Finite Fields

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper tries to develop a recent research which consists in using Discrete Mathematics as a tool in the study of the problem of the classification of Lie algebras in general, dealing in this case with filiform Lie algebras up to dimension 7 over ...
Falcón Óscar J.   +4 more
doaj   +1 more source

The join of split graphs whose completely regular endomorphisms form a monoid

open access: yesOpen Mathematics, 2017
In this paper, completely regular endomorphisms of the join of split graphs are investigated. We give conditions under which all completely regular endomorphisms of the join of two split graphs form a monoid.
Hou Hailong, Song Yanhua, Gu Rui
doaj   +1 more source

The edge-regular complete maps

open access: yesOpen Mathematics, 2020
A map is called edge-regular if it is edge-transitive but not arc-transitive. In this paper, we show that a complete graph Kn{K}_{n} has an orientable edge-regular embedding if and only if n=pd>3n={p}^{d}\gt 3 with p an odd prime such that pd≡3{p}^{d ...
Yu Xue, Lou Ben Gong
doaj   +1 more source

Automorphisms and independent number of single nonzero component graph over a vector space

open access: yesOpen Mathematics
In this paper, we introduce a graph structure, called the single non-zero component graph Γ(V) ${\Gamma}\left(\mathbb{V}\right)$ , on a finite dimensional vector space V $\mathbb{V}$ .
Xi Wentao   +3 more
doaj   +1 more source

Simplicial complexes defined on groups

open access: yesOpen Mathematics
This study makes some preliminary observations towards an extension of current work on graphs defined on groups to simplicial complexes. I define a variety of simplicial complexes on a group, which are preserved by automorphisms of the group, and in many
Cameron Peter J.
doaj   +1 more source

Small clique number graphs with three trivial critical ideals

open access: yesSpecial Matrices, 2018
The critical ideals of a graph are the determinantal ideals of the generalized Laplacian matrix associated to a graph. Previously, they have been used in the understanding and characterizing of the graphs with critical group with few invariant factors ...
Alfaro Carlos A., Valencia Carlos E.
doaj   +1 more source

A subexponential construction of graph coloring for multiparty computation

open access: yesJournal of Mathematical Cryptology, 2014
We show the first deterministic construction of an unconditionally secure multiparty computation (MPC) protocol in the passive adversarial model over black-box non-Abelian groups which is both optimal (secure against an adversary who possesses any ...
Asghar Hassan Jameel   +3 more
doaj   +1 more source

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