Results 51 to 60 of about 8,004,238 (365)

SHACL-Based Validation Method of Knowledge Graph for Power System Model

open access: yesZhongguo dianli, 2022
With the expansion of the power grid and the high penetration of distributed energy resources, the power system analysis and decision-making have put forward higher requirements for comprehensive and accurate power grid models.
Xiaolu LI   +5 more
doaj   +1 more source

iRun: Horizontal and Vertical Shape of a Region-Based Graph Compression

open access: yesItalian National Conference on Sensors, 2022
Graph data are pervasive worldwide, e.g., social networks, citation networks, and web graphs. A real-world graph can be huge and requires heavy computational and storage resources for processing.
Muhammad Umair, Young-Koo Lee
semanticscholar   +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   +3 more sources

Some Graph Polynomials of the Power Graph and its Supergraphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
‎In this paper‎, ‎exact formulas for the dependence‎, ‎independence‎, ‎vertex cover and clique polynomials of the power graph and its‎ ‎supergraphs for certain finite groups are presented‎.
Asma Hamzeh
doaj   +1 more source

Frequency and voltage partitioning in presence of renewable energy resources for power system (example: North Chile power network) [PDF]

open access: yes, 2016
This paper investigates techniques for frequency and voltage partitioning of power network based on the graph-theory. These methods divide the power system into distinguished regions to avoid the spread of disturbances and to minimize the interaction ...
Al-Emadi, N. A.   +3 more
core   +1 more source

On the Powers of Signed Graphs [PDF]

open access: yes, 2020
A signed graph is an ordered pair $ =(G, ),$ where $G=(V,E)$ is the underlying graph of $ $ with a signature function $ :E\rightarrow \{1,-1\}$. In this article, we define $n^{th}$ power of a signed graph and discuss some properties of these powers of signed graphs.
Germina K A, Shahul Hameed K, Shijin T V
openaire   +2 more sources

On the difference graph of power graphs of finite groups

open access: yesQuaestiones Mathematicae, 2023
2 ...
Kumar, Jitender   +2 more
openaire   +3 more sources

A Study on the Nourishing Number of Graphs and Graph Powers [PDF]

open access: yesMathematics, 2015
Let \(\mathbb{N}_{0}\) be the set of all non-negative integers and \(\mathcal{P}(\mathbb{N}_{0})\) be its power set. Then, an integer additive set-indexer (IASI) of a given graph \(G\) is defined as an injective function \(f:V(G)\to \mathcal{P}(\mathbb{N}_{0})\) such that the induced edge-function \(f^+:E(G) \to\mathcal{P}(\mathbb{N}_{0})\) defined by \
Naduvath, Sudev, Augustine, Germina
openaire   +5 more sources

Some Characterizations and NP-Complete Problems for Power Cordial Graphs

open access: yesJournal of Mathematics, 2023
A power cordial labeling of a graph G=VG,EG is a bijection f:VG⟶1,2,…,VG such that an edge e=uv is assigned the label 1 if fu=fvn or fv=fun, for some n∈N∪0 and the label 0 otherwise, and satisfy the number of edges labeled with 0 and the number of edges ...
C. M. Barasara, Y. B. Thakkar
doaj   +1 more source

Rainbow Connection Number of Graph Power and Graph Products [PDF]

open access: yesGraphs Comb., 2011
Rainbow connection number, rc(G), of a connected graph G is the minimum number of colors needed to color its edges so that every pair of vertices is connected by at least one path in which no two edges are colored the same (note that the coloring need ...
Manu Basavaraju   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy