Results 21 to 30 of about 768,033 (273)

Partitions of Graphs into Cographs

open access: yesElectronic Notes in Discrete Mathematics, 2002
A cograph is a graph that can be constructed by a single vertex using complementation and disjoint union operations. Equivalently, cographs are exactly those graphs which do not contain an induced path \(P_4\) with four vertices and three edges. The \(c\)-chromatic number \(c(G)\) of a graph \(G\) is the minimum number \(k\) such that the vertex set of
John Gimbel, Jaroslav Nesetril
openaire   +3 more sources

A Graph Partition Problem

open access: yesThe American Mathematical Monthly, 2015
Given a graph $G$ on $n$ vertices, for which $m$ is it possible to partition the edge set of the $m$-fold complete graph $mK_n$ into copies of $G$? We show that there is an integer $m_0$, which we call the \emph{partition modulus of $G$}, such that the set $M(G)$ of values of $m$ for which such a partition exists consists of all but finitely many ...
Sebastian M. Cioaba, Peter J. Cameron
openaire   +3 more sources

GAP: Genetic Algorithm Based Large-Scale Graph Partition in Heterogeneous Cluster

open access: yesIEEE Access, 2020
Graph is an important model to describe various networks, and its scale becomes larger and larger with the development of communication and information technology.
Menghan Li   +3 more
doaj   +1 more source

Chromatic partitions of a graph

open access: yesDiscrete Mathematics, 1989
The chromatic partition number \(\chi_ k(G)\) (k\(\geq 1)\) of a graph G is defined to be the minimum number of colours needed in a \(P_ k\)- colouring of G. The following are the main results: (1) For any graph G of order p, \[ \frac{p}{M_ k}\leq \chi_ k(G)\leq \{\frac{p-M_ k}{k}\}+1\quad and\quad -\frac{p}{\beta_ 0k}\leq \chi_ k(G)\leq \{\frac{p ...
E. Sampathkumar 0001   +1 more
openaire   +1 more source

Revisiting the Isoperimetric Graph Partitioning Problem

open access: yesIEEE Access, 2019
Isoperimetric graph partitioning, which is also known as the Cheeger cut, is NP-hard in its original form. In the literature, multiple modifications to this problem have been proposed to obtain approximation algorithms for clustering applications. In the
Sravan Danda   +3 more
doaj   +1 more source

Partitions in Matrices and Graphs

open access: yesEuropean Journal of Combinatorics, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Daniel R. Hughes, Navin M. Singhi
openaire   +2 more sources

Graph Partitions in Chemistry

open access: yesEntropy, 2023
We study partitions (equitable, externally equitable, or other) of graphs that describe physico-chemical systems at the atomic or molecular level; provide examples that show how these partitions are intimately related with symmetries of the systems; and discuss how such a link can further lead to insightful relations with the systems’ physical and ...
Ioannis Michos, Vasilios Raptis
openaire   +3 more sources

RBSEP: a reassignment and buffer based streaming edge partitioning approach

open access: yesJournal of Big Data, 2019
In recent years, the rapid growth of the Internet has led to creation of massively large graphs. Since databases have become very large nowadays, they cannot be processed by a simple machine at an acceptable time anymore; therefore, traditional graph ...
Monireh Taimouri, Hamid Saadatfar
doaj   +1 more source

Using Graph Partitioning for Scalable Distributed Quantum Molecular Dynamics

open access: yesAlgorithms, 2019
The simulation of the physical movement of multi-body systems at an atomistic level, with forces calculated from a quantum mechanical description of the electrons, motivates a graph partitioning problem studied in this article.
Hristo N. Djidjev   +4 more
doaj   +1 more source

Design of Heterogeneous Graph Computing System for Large-Scale Dynamic Graph [PDF]

open access: yesJisuanji gongcheng
Graphics Processing Unit (GPU) is not fully utilized when processing large-scale dynamic graphs, and the limitations of GPU-oriented graph partitioning methods lead to performance bottlenecks.
ZHANG Ming, GUO Wenkang, WANG Haifeng
doaj   +1 more source

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