Results 1 to 10 of about 366,766 (262)

On the Total Graph of Mycielski Graphs, Central Graphs and Their Covering Numbers

open access: yesDiscussiones Mathematicae Graph Theory, 2013
The technique of counting cliques in networks is a natural problem. In this paper, we develop certain results on counting of triangles for the total graph of the Mycielski graph or central graph of star as well as completegraph families.
Patil H.P., Pandiya Raj R.
doaj   +2 more sources

On central-peripheral appendage numbers of uniform central graphs [PDF]

open access: yesElectronic Journal of Graph Theory and Applications, 2020
In a uniform central graph (UCG) the set of eccentric vertices of a central vertex is the same for all central vertices. This collection of eccentric vertices is the centered periphery.
Sul-Young Choi, Jonathan Needleman
doaj   +3 more sources

The non-commuting graph of a non-central hypergroup

open access: yesOpen Mathematics, 2019
The aim of this paper is to construct and study the properties of a certain graph associated with a non-central hypergroup, i.e. a hypergroup having non-commutative the associated fundamental group.
Irina Cristea, Morteza Jafarpour
exaly   +2 more sources

The central ratio of a graph

open access: yesDiscrete Mathematics, 1982
AbstractWe examine several graph equations involving the center, C(G), of a graph G. The central ratio of G, denoted c(G), is the ratio of |C(G)| to |V(G)|. We show that for any rational number r, where 0 < r ⩽ 1, there is a graph G with c(G) = r. For all such r, we describe a corresponding minimal graph.
exaly   +2 more sources

MSCDGCN: Multi-scale central difference graph convolution network for skeleton-based action recognition

open access: yesJournal of King Saud University - Computer and Information Sciences
Effectively distinguishing fine-grained actions remains a critical challenge in skeleton-based action recognition. Existing Graph Convolutional Network methods often overlook directional motion cues and fail to integrate spatiotemporal features ...
Xinlu Zong
exaly   +2 more sources

Commuting conjugacy classes graph of the generalized dihedral and dicyclic groups [PDF]

open access: yesریاضی و جامعه, 2023
Suppose $G$ is a finite non-abelian group and $\Gamma(G)$ is a simple graph with the non-central conjugacy classes of $G$ as its vertex set. Two different non-central conjugacy classes $A$ and $B$ are assumed to be adjacent if and only if there are ...
Mohammadali Salahshour
doaj   +1 more source

Research on Imbalance Fraud Detection Based on Graph Neural Network [PDF]

open access: yesJisuanji gongcheng, 2023
Currently, graph neural network is widely used in fraud detection. Because of the class imbalance problem in fraud detection, the performance of the model based on graph neural network is poor. To solve these problems, an unbalanced fraud detection model
Anqi CHEN, Rui CHEN, Zhufang KUANG, Huajun HUANG
doaj   +1 more source

On the r-dynamic coloring of some fan graph families

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper, we determine the r-dynamic chromatic number of the fan graph Fm,n and determine sharp bounds of this graph invariant for four related families of graphs: The middle graph M(Fm,n), the total graph T (Fm,n), the central graph C(Fm,n) and the
Falcón Raúl M.   +3 more
doaj   +1 more source

On harmonious chromatic number of triple star graph [PDF]

open access: yesJournal of Hyperstructures, 2016
A Harmonious coloring of a graph G is a proper vertex coloring of G, in which every pair of colors appears on at most one pair of adjacent vertices and the harmonious chromatic number of graph G is the minimum number of colors needed for the harmonious ...
Akhlak Mansuri
doaj   +1 more source

Central Clustering of Attributed Graphs [PDF]

open access: yesMachine Learning, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brijnesh J. Jain, Fritz Wysotzki
openaire   +1 more source

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