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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 $…