Results 21 to 30 of about 1,347,292 (277)

Note On The Game Colouring Number Of Powers Of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
We generalize the methods of Esperet and Zhu [6] providing an upper bound for the game colouring number of squares of graphs to obtain upper bounds for the game colouring number of m-th powers of graphs, m ≥ 3, which rely on the maximum degree and the ...
Andres Stephan Dominique, Theuser Andrea
doaj   +1 more source

A network approach for power grid robustness against cascading failures [PDF]

open access: yes, 2015
Cascading failures are one of the main reasons for blackouts in electrical power grids. Stable power supply requires a robust design of the power grid topology.
Kooij, Robert E.   +3 more
core   +3 more sources

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

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

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

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

Comparing the Topological and Electrical Structure of the North American Electric Power Infrastructure

open access: yes, 2011
The topological (graph) structure of complex networks often provides valuable information about the performance and vulnerability of the network. However, there are multiple ways to represent a given network as a graph.
Barrows, Clayton   +3 more
core   +1 more source

Signless Laplacian spectrum of power graphs of finite cyclic groups

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
In this paper, we have studied the Signless Laplacian spectrum of the power graph of finite cyclic groups. We have shown that is an eigen value of Signless Laplacian of the power graph of with multiplicity at least In particular, using the theory of ...
Subarsha Banerjee, Avishek Adhikari
doaj   +1 more source

On groups with specified quotient power graphs [PDF]

open access: yesInternational Journal of Group Theory, 2016
. In this paper we study some relations between the power andquotient power graph of a finite group. These interesting relations motivateus to find some graph theoretical properties of the quotient power graphand the proper quotient power graph of a ...
Mostafa Shaker, Mohammadali Iranmanesh
doaj  

Graph Sampling for Covariance Estimation

open access: yes, 2017
In this paper the focus is on subsampling as well as reconstructing the second-order statistics of signals residing on nodes of arbitrary undirected graphs.
Chepuri, Sundeep Prabhakar, Leus, Geert
core   +1 more source

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