Results 241 to 250 of about 1,402,601 (292)
Some of the next articles are maybe not open access.

On Total Chromatic Number of Complete Multipartite Graphs

Discrete Applied Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aseem Dalal, B. S. Panda 0001
semanticscholar   +4 more sources

Total chromatic number of honeycomb network

Journal of Discrete Mathematical Sciences and Cryptography, 2020
AbstractThe total coloring of a graph G is defined as assigning colors to the set of vertices and set of edges of G so that any adjacent or incident elements of G receive different colors.
S. Shyama, M. R. Chithra
openaire   +2 more sources

Spectral Inequalities on Independence Number, Chromatic Number, and Total Chromatic Number of a Graph

Journal of Discrete Mathematical Sciences and Cryptography, 2015
AbstractUsing Lotker's interlacing theorem on the Laplacian eigenvalues of a graph in [3] and Wang and Belardo's interlacing theorem on the signless Laplacian eigenvalues of a graph in [4], we obtain inequalities which involve the independence number, chromatic number, Laplacian eigenvalues, and signless Laplacian eigenvalues of a graph.
Rao Li
openaire   +2 more sources

Inclusion total chromatic number

Discrete Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Determining equitable total chromatic number for infinite classes of complete r-partite graphs

Discrete Applied Mathematics, 2020
An equitable total coloring is the assignment of colors to the edges and vertices of a graph G so that incident and adjacent elements receive different colors, and the difference between the cardinalities of any two color classes is either 0 or 1.
Anderson G. da Silva   +2 more
semanticscholar   +1 more source

Circular total chromatic numbers of graphs

Discrete Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cheyu Lin, Xuding Zhu
openaire   +2 more sources

On the double total dominator chromatic number of graphs

Discrete Mathematics, Algorithms and Applications, 2021
In this paper, we introduce and study a new coloring problem of graphs called the double total dominator coloring. A double total dominator coloring of a graph [Formula: see text] with minimum degree at least 2 is a proper vertex coloring of [Formula: see text] such that each vertex has to dominate at least two color classes.
Fairouz Beggas   +2 more
openaire   +1 more source

Total-chromatic number and chromatic index of dually chordal graphs

Information Processing Letters, 1999
Abstract Given a graph G and a vertex v , a vertex u∈N(v) is a maximum neighbor of v if for all w∈N(v) we have N(w)⫅N(u) , where N(v) denotes the neighborhood of v in G . A maximum neighborhood elimination order of G is a linear order v 1 ,v 2 ,…,v n on its vertex set ...
Celina M. H. de Figueiredo   +2 more
openaire   +1 more source

Complementary Graphs and Total Chromatic Numbers

SIAM Journal on Applied Mathematics, 1974
A theorem of the Nordhaus–Gaddum class is obtained for the total chromatic number of a graph and its complement.
openaire   +2 more sources

An upper bound for the total chromatic number

Graphs and Combinatorics, 1990
The chromatic number, the edge chromatic number, and the total chromatic number of a graph H are respectively denoted by \(\chi\) (H), \(\chi '(H)\), and \(\chi ''(H)\). Theorem: For any graph H, \(\chi ''(H)\leq \chi '(H)+2\lceil \sqrt{\chi (H)}\rceil.\) Let \(\Delta\) (H) be the maximum degree of graph H.
openaire   +1 more source

Home - About - Disclaimer - Privacy