We deal with some generalizations of the graph coloring problem on classes of perfect graphs. Namely we consider the μ-coloring problem (upper bounds for the color on each vertex), the precoloring extension problem (a ...

La luz, a través del color, está al alcance de todos y como personas tenemos el privilegio de permitirnos apreciar nuestro mundo, crear y recrear lo que vemos con nuestra fantasía a través de la pintura. Esta nueva edición ...

El proyecto tiene como objetivo representar por medio de la pintura y el color, los afectos y las pasiones; para ello se realiza una investigación con base en una pregunta ¿Cómo representar un estado afectivo? Y ¿Qué ...

This study aimed to provide a photographic essay experienced by the author of this dissertation and driven by the theory of color. It was assumed that the color photograph is a double construction in the sense that both ...

Two questions are mainly discussed in this article: (a) how the shape of color order systems is related to different types of chromatic mixtures, and (b) how the opacity or transparency (an aspect of cesia) of the coloring ...

Objectives: The objective of this study was to evaluate by a visual method of comparison the color stability of nonpigmented and pigmented facial silicones after accelerated aging. Materials and Methods: Two kinds of ...

In this paper we present a polynomial time algorithm that determines if an input graph containing no induced seven-vertex path is 3-colorable. This affirmatively answers a question posed by Randerath, Schiermeyer and Tewes ...

Este estudio determina los atributos colorimétricos asociados a la connotación perceptual del color en un grupo de voluntarios de Santiago de Chile. Un total de 185 personas participaron en este estudio, todas testeadas ...