3 papers
math.CO2025
Domination on Vertex-weighted Graphs Induce by a Coloring
María A. Garrido-Vizuete, Mucuy-kak Guevara, Alberto Márquez +1
This paper introduces the concept of domination in the context of colored graphs (where each color assigns a weight to the vertices of its class), termed up-color domination, where…
math.CO2016
Gradation in Greyscales of Graphs
Natalia de Castro, María A. Garrido-Vizuete, Rafael Robles +1
In this work we present the notion of greyscale of a graph as a colouring of its vertices that uses colours from the real interval [0,1]. Any greyscale induces another colouring by…
math.CO2016
Contrast in Greyscales of Graphs
Natalia de Castro, María A. Garrido-Vizuete, Rafael Robles +1
A greyscale of a graph is a mapping from to the interval such that . This function induces another mapping on $…