Results 21 to 30 of about 15,357 (262)

Clustering Powers of Sparse Graphs [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2020
We prove that if $G$ is a sparse graph — it belongs to a fixed class of bounded expansion $\mathcal{C}$ — and $d\in \mathbb{N}$ is fixed, then the $d$th power of $G$ can be partitioned into cliques so that contracting each of these clique to a single vertex again yields a sparse graph.
Nešetřil, Jaroslav   +3 more
openaire   +5 more sources

On \delta^(k)-colouring of Powers of Paths and Cycles

open access: yesTheory and Applications of Graphs, 2021
In a proper vertex colouring of a graph, the vertices are coloured in such a way that no two adjacent vertices receive the same colour, whereas in an improper vertex colouring, adjacent vertices are permitted to receive same colours subjected to some ...
Merlin Ellumkalayil, Sudev Naduvath
doaj   +1 more source

An algorithmic analysis of Flood-It and Free-Flood-It on graph powers [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Analysis of ...
Uéverton dos Santos Souza   +2 more
doaj   +1 more source

Note on the Sum of Powers of Normalized Signless Laplacian Eigenvalues of Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2019
In this paper, for a connected graph G and a real α≠0, we define a new graph invariant σα(G)-as the sum of the alphath powers of the normalized signless Laplacian eigenvalues of G.
Ş. Burcu Bozkurt Altındağ
doaj   +1 more source

Simplicial Powers of Graphs

open access: yesTheoretical Computer Science, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andreas Brandstädt, Van Bang Le
openaire   +4 more sources

THE POWER GRAPH REPRESENTATION FOR INTEGER MODULO GROUP WITH POWER PRIME ORDER

open access: yesBarekeng, 2023
There are many applications of graphs in various fields. Starting from chemical problems, such as the molecular shape of a compound to internet network problems, we can also use graphs to depict the abstract concept of a mathematical structure..
Lalu Riski Wirendra Putra   +4 more
doaj   +1 more source

On the Structure of the Power Graph and the Enhanced Power Graph of a Group

open access: yesThe Electronic Journal of Combinatorics, 2017
Let $G$ be a group‎. ‎The power graph of $G$ is a graph with the vertex‎ ‎set $G$‎, ‎having an edge between two elements whenever one is a power of the other‎. ‎We characterize nilpotent groups whose power graphs have finite independence number‎. ‎For a bounded exponent group‎, ‎we prove its power graph is a perfect graph and we determine‎ ‎its clique ...
Ghodratollah Aalipour   +4 more
openaire   +4 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

Heterogeneous graph convolutional neural network for protein-ligand scoring [PDF]

open access: yesExploration of Drug Science, 2023
Aim: Drug discovery is a long process, often taking decades of research endeavors. It is still an active area of research in both academic and industrial sectors with efforts on reducing time and cost.
Kevin Crampon   +4 more
doaj   +1 more source

Random subgraphs of certain graph powers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We determine the limiting probability that a random subgraph of the Cartesian power Kan or of Ka,an is connected.
Lane Clark
doaj   +1 more source

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