Results 31 to 40 of about 272,972 (308)

The n-th Power Signed Graphs-II [PDF]

open access: yes, 2010
For standard terminology and notion in graph theory we refer the reader to Harary [6]; the non-standard will be given in this paper as and when required.
Reddyy, P. Siva Kota   +2 more
core   +1 more source

Growth of Graph Powers [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2011
For a graph $G$, its $r$th power is constructed by placing an edge between two vertices if they are within distance $r$ of each other. In this note we study the amount of edges added to a graph by taking its $r$th power. In particular we obtain that, for $r\geq 3$, either the $r$th power is complete or "many" new edges are added.
openaire   +5 more sources

A Random Graph Model for Power Law Graphs [PDF]

open access: yesExperimental Mathematics, 2001
We propose a random graph model which is a special case of sparserandom graphs with given degree sequences which satisfy a power law. This model involves only a small number of paramo eters, called logsize and log-log growth rate. These parameters capture some universal characteristics of massive graphs. From these parameters, various properties of the
Aiello, William, Chung, Fan, Lu, Linyuan
openaire   +2 more sources

A Comprehensive Approach to Synthetic Distribution Grid Generation: Erdős–Rényi to Barabási-Albert [PDF]

open access: yesAUT Journal of Electrical Engineering
In this extended study, the focus is on advancing the generation of synthetic distribution grids (SDGs) through the introduction of a new algorithm based on the Barabási-Albert random graph model.
Mohammad Shahraeini
doaj   +1 more source

The cubic power graph of finite abelian groups

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
Let G be a finite abelian group with identity 0. For an integer the additive power graph of G is the simple undirected graph with vertex set G in which two distinct vertices x and y are adjacent if and only if x + y = nt for some with When the additive ...
R. Raveendra Prathap, T. Tamizh Chelvam
doaj   +1 more source

Graph Powering and Spectral Robustness

open access: yesSIAM Journal on Mathematics of Data Science, 2020
Spectral algorithms, such as principal component analysis and spectral clustering, typically require careful data transformations to be effective: upon observing a matrix $A$, one may look at the spectrum of $ψ(A)$ for a properly chosen $ψ$. The issue is that the spectrum of $A$ might be contaminated by non-informational top eigenvalues, e.g., due to ...
Emmanuel Abbe   +3 more
openaire   +2 more sources

Quotient graphs for power graphs [PDF]

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2017
In a previous paper of the first author a procedure was developed for counting the components of a graph through the knowledge of the components of one of its quotient graphs. Here we apply that procedure to the proper power graph \mathcal{P}_0(G ...
BUBBOLONI, DANIELA   +2 more
openaire   +3 more sources

On the tree-number of the power graph associated with some finite groups [PDF]

open access: yesAUT Journal of Mathematics and Computing
Given a group G, we define the power graph P(G) as follows: the vertices are the elements of G and two vertices x and y are joined by an edge if ⟨x⟩ ⊆ ⟨y⟩ or ⟨y⟩ ⊆ ⟨x⟩.
Sakineh Rahbariyan
doaj   +1 more source

Ultra-short-term Interval Prediction of Wind Power Based on Graph Neural Network and Improved Bootstrap Technique

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
Reliable and accurate ultra-short-term prediction of wind power is vital for the operation and optimization of power systems. However, the volatility and intermittence of wind power pose uncertainties to traditional point prediction, resulting in an ...
Wenlong Liao   +5 more
doaj   +1 more source

Clawfreeness of the powers of a graph

open access: yesDiscrete Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Patrick Bahls, Nicole A. Gin
openaire   +2 more sources

Home - About - Disclaimer - Privacy