Results 291 to 300 of about 187,749 (326)

Wiener index of a directed rough fuzzy graph and application to human trafficking

Journal of Intelligent & Fuzzy Systems, 2022
In this paper, we introduced Wiener index ( WI ) and average Wiener index ( AWI ) of directed rough fuzzy graph (DRFG). WI is the most extensively used index in graph theory. This index is based on the geodesic distance between two vertices.
Uzma Ahmad, Iqra Nawaz
semanticscholar   +1 more source

First Zagreb index on a fuzzy graph and its application

Journal of Intelligent & Fuzzy Systems, 2021
The Zagreb index (ZI) is a very important graph parameter and it is extensively used in molecular chemistry, spectral graph theory, network theory and several fields of mathematics and chemistry. In this article, the first ZI is studied for several fuzzy
S. R. Islam, M. Pal
semanticscholar   +1 more source

Hyper-Wiener index for fuzzy graph and its application in share market

Journal of Intelligent & Fuzzy Systems, 2021
Topological indices have an important role in molecular chemistry, network theory, spectral graph theory and several physical worlds. Most of the topological indices are defined in a crisp graph.
S. R. Islam, M. Pal
semanticscholar   +1 more source

Relation algebras and vertex conditions in graph theory

2018
The scheme associated with a graph is an association scheme iff the graph is strongly regular. Consider the problem of extending such an association scheme to a superscheme. The obstacles can be expressed in terms of f-vertex conditions. If a graph does not satisfy the i-vertex condition, a presuperscheme associated with it cannot be erected beyond the
openaire   +2 more sources

The Graph Fractional Fourier Transform in Hilbert Space

IEEE Transactions on Signal and Information Processing over Networks
Graph signal processing (GSP) leverages the inherent signal structure within graphs to extract high-dimensional data without relying on translation invariance.
Yu Zhang, Bing-Zhao Li
semanticscholar   +1 more source

A new robust approach to solve minimum vertex cover problem: Malatya vertex-cover algorithm

Journal of Supercomputing, 2023
Selman Yakut, Furkan Öztemiz, A. Karcı
semanticscholar   +1 more source

Vertex-Frequency Analysis of Graph Signals

Signals and Communication Technology, 2019
L. Stanković, Ervin Sejdic, —Ervin Sejdić   +2 more
semanticscholar   +1 more source

Minimum Vertex Cover Problem Optimization Using Hopfield Neural Network: Graph Theory Problem Optimization

The International Journal of Technology, Knowledge, and Society, 2006
Pravinkumar Kamde, P. J. Kulkarni
openaire   +1 more source

Optimal PMU placement solution: graph theory and MCDM-based approach

, 2017
P. Ghosh, Soumesh Chatterjee, B. K. Roy
semanticscholar   +1 more source

The analytic value of the light-light vertex graph contributions to the electron g−2 in QED

, 1991
S. Laporta, E. Remiddi
semanticscholar   +1 more source