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THE LOCATING CHROMATIC NUMBER OF CHAIN(A,4,n) GRAPH

Barekeng
Let be a connected graph with a vertex coloringsuch that two adjacent vertices have different colors. We denote an ordered partition where is a color class with color-, consisting of vertices given color , for .
Des Welyyanti, Latifa Azhar Abel, Lyra Yulianti +2 more
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PISOT NUMBERS AND CHROMATIC ZEROS

, 2014
In this article we show that Pisot numbers of even degree and their powers cannot be roots of chromatic polynomials. We also consider the family of smallest Pisot numbers of odd degree. We show that they cannot be roots of chromatic polynomials of connected graphs with a certain maximum number of vertices.
openaire +4 more sources

The upper chromatic number of quasi-interval co-hypergraphs

Le Matematiche, 1997
We investigate the structural and colouring properties of clique hyper-graphs of interval graphs called the quasi-interval hypergraphs. We find the conditions when they are interval hypergraphs. The upper chromatic number for the clique co-hypergraphs of
Violeta Prisakaru
doaj

A note on Hadwiger’s conjecture for path-chromatic number [PDF]

Discrete Mathematics Letters
Hikaru Yokoi
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Chromatic hyper Zagreb topological descriptors and QSPR analysis of certain skin cancer drugs. [PDF]

Front Chem
Pavithra R, Ravi Sankar J.
europepmc +1 more source

Physiological chromatic model eyes for IOL characterization. [PDF]