Results 31 to 40 of about 118,378,802 (306)

On the Change of Distance Energy of Complete Bipartite Graph due to Edge Deletion

open access: yesJournal of Mathematics, 2021
The distance energy of a graph is defined as the sum of absolute values of distance eigenvalues of the graph. The distance energy of a graph plays an important role in many fields.
Shaowei Sun, Ziyan Wan
doaj   +1 more source

The -distance chromatic number of trees and cycles

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
For any positive integer , a -distance coloring of a graph is a vertex coloring of in which no two vertices at distance less than or equal to receive the same color.
Niranjan P.K., Srinivasa Rao Kola
doaj   +2 more sources

Steiner Wiener index of graph products [PDF]

open access: yesTransactions on Combinatorics, 2016
The Wiener index W(G) of a connected graph G‎ ‎is defined as W(G)=∑u,v∈V(G)dG(u,v)‎ ‎where dG(u,v) is the distance between the vertices u and v of‎ ‎G‎.
Yaoping Mao, Zhao Wang, Ivan Gutman
doaj  

Closed trail distance in a biconnected graph. [PDF]

open access: yesPLoS ONE, 2018
Graphs describe and represent many complex structures in the field of social networks, biological, chemical, industrial and transport systems, and others.
Vaclav Snasel   +2 more
doaj   +1 more source

Fast suboptimal algorithms for the computation of graph edit distance [PDF]

open access: yes, 2006
Graph edit distance is one of the most flexible mechanisms for error-tolerant graph matching. Its key advantage is that edit distance is applicable to unconstrained attributed graphs and can be tailored to a wide variety of applications by means of ...
Michel Neuhaus   +5 more
core   +1 more source

The distance coloring of graphs [PDF]

open access: yesActa Mathematica Sinica, English Series, 2014
Let $G$ be a connected graph with maximum degree $Δ\ge 3$. We investigate the upper bound for the chromatic number $χ_γ(G)$ of the power graph $G^γ$. It was proved that $χ_γ(G) \leΔ\frac{(Δ-1)^γ-1}{Δ-2}+1=:M+1$ with equality if and only $G$ is a Moore graph.
Miao, Lian Ying, Fan, Yi Zheng
openaire   +2 more sources

The H-Line Signed Graph of a Signed Graph [PDF]

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

Degree resistance distance of unicyclic graphs [PDF]

open access: yesTransactions on Combinatorics, 2012
Let G be a connected graph with vertex set V(G). The degree resistance distance of G is defined as the sum over all pairs of vertices of the terms [d(u)+d(v)] R(u,v), where d(u) is the degree of vertex u, and R(u,v) denotes the resistance distance ...
Ivan Gutman, Linhua Feng, Guihai Yu
doaj  

Minimal Graphs with a Specified Code Map Image

open access: yesTheory and Applications of Graphs, 2018
Let $G$ be a graph and $e_1,\cdots ,e_n$ be $n$ distinct vertices. Let $\rho$ be the metric on $G$. The code map on vertices, corresponding to this list, is $c(x)=(\rho (x,e_1),\cdots ,\rho (x,e_n))$.
Paul Feit
doaj   +1 more source

Optimizing Distance Computation in Distributed Graph Systems

open access: yesIEEE Access, 2020
Given a large graph, such as a social network or a knowledge graph, a fundamental query is how to find the distance from a source vertex to another vertex in the graph.
Qing Wang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy