Results 21 to 30 of about 926,750 (319)

Information Inequalities via Submodularity and a Problem in Extremal Graph Theory

open access: yesEntropy, 2022
The present paper offers, in its first part, a unified approach for the derivation of families of inequalities for set functions which satisfy sub/supermodularity properties.
Igal Sason
doaj   +1 more source

Graph Analysis Using Fast Fourier Transform Applied on Grayscale Bitmap Images

open access: yesInformation, 2021
There is spiking interest in graph analysis, mainly sparked by social network analysis done for various purposes. With social network graphs often achieving very large size, there is a need for capable tools to perform such an analysis.
Pawel Baszuro, Jakub Swacha
doaj   +1 more source

Plick Graphs with Crossing Number 1 [PDF]

open access: yes, 2011
In this paper, we deduce a necessary and sufficient condition for graphs whose plick graphs have crossing number 1. We also obtain a necessary and sufficient condition for plick graphs to have crossing number 1 in terms of forbidden ...
Basavanagoud, B., Kulli, V.R.
core   +1 more source

Towards Inferring Influential Facebook Users

open access: yesComputers, 2021
Because of the complexity of the actors and the relationships between them, social networks are always represented by graphs. This structure makes it possible to analyze the effectiveness of the network for the social actors who are there.
Suleiman Ali Alsaif   +2 more
doaj   +1 more source

On the independence graph of a graph

open access: yesDiscrete Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bostjan Bresar, Blaz Zmazek
openaire   +2 more sources

Leveraging Spatio-Temporal Graphs and Knowledge Graphs: Perspectives in the Field of Maritime Transportation

open access: yesISPRS International Journal of Geo-Information, 2021
This paper introduces a prospective study of the potential of spatio-temporal graphs (ST-graphs) and knowledge graphs (K-graphs) for the modelling of geographical phenomena.
Géraldine Del Mondo   +4 more
doaj   +1 more source

Minimum Cycle Base of Graphs Identified by Two Planar Graphs [PDF]

open access: yes, 2007
In this paper, we study the minimum cycle base of the planar graphs obtained from two 2-connected planar graphs by identifying an edge (or a cycle) of one graph with the corresponding edge (or cycle) of another, related with map geometries, i.e ...
Han, Ren, Dengju, Ma
core   +1 more source

Open Distance-Pattern Uniform Graphs [PDF]

open access: yes, 2009
All graphs considered in this paper are finite, simple, undirected and connected. For graph theoretic terminology we refer to Harary [6].
Jose, Bibin K.
core   +1 more source

Kolmogorov Basic Graphs and Their Application in Network Complexity Analysis

open access: yesEntropy, 2021
Throughout the years, measuring the complexity of networks and graphs has been of great interest to scientists. The Kolmogorov complexity is known as one of the most important tools to measure the complexity of an object.
Amirmohammad Farzaneh   +2 more
doaj   +1 more source

Graph equations for line graphs, total graphs, middle graphs and quasi-total graphs

open access: yesDiscrete Mathematics, 1984
Let G be a simple finite and connected graph with the vertex set V(G) and the edge set X(G). Let V'(G) be the family of all one-point subsets of V(G). Both the line graph L(G) of G and the total graph T(G) of G are standard graph theoretical concepts. The middle graph M(G) of G is the intersection graph of \(V'(G)\cup X(G)\) and the quasi-total graph P(
D. V. S. Sastry, B. Syam Prasad Raju
openaire   +2 more sources

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