On the Minimum Sum Coloring of P 4-Sparse Graphs

In this paper, we study the minimum sum coloring (MSC) problem on P 4-sparse graphs. In the MSC problem, we aim to assign natural numbers to vertices of a graph such that adjacent vertices get different numbers, and the sum of the numbers assigned to the vertices is minimum. Based in the concept of...

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Detalles Bibliográficos
Autor principal: Bonomo, F.
Otros Autores: Valencia-Pabon, M.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2012
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
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100 1 |a Bonomo, F. 
245 1 3 |a On the Minimum Sum Coloring of P 4-Sparse Graphs 
260 |c 2012 
270 1 0 |m Bonomo, F.; IMAS-CONICET, Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina; email: fbonomo@dc.uba.ar 
506 |2 openaire  |e Política editorial 
520 3 |a In this paper, we study the minimum sum coloring (MSC) problem on P 4-sparse graphs. In the MSC problem, we aim to assign natural numbers to vertices of a graph such that adjacent vertices get different numbers, and the sum of the numbers assigned to the vertices is minimum. Based in the concept of maximal sequence associated with an optimal solution of the MSC problem of any graph, we show that there is a large sub-family of P 4-sparse graphs for which the MSC problem can be solved in polynomial time. Moreover, we give a parameterized algorithm and a 2-approximation algorithm for the MSC problem on general P 4-sparse graphs. © 2012 Springer Japan.  |l eng 
536 |a Article in Press 
593 |a IMAS-CONICET, Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina 
593 |a LIPN, Université Paris-Nord, 99 Av. J.-B. Clément, Villetaneuse, 93430, France 
690 1 0 |a GRAPH COLORING 
690 1 0 |a MINIMUM SUM COLORING 
690 1 0 |a P 4-SPARSE GRAPHS 
700 1 |a Valencia-Pabon, M. 
773 0 |d 2012  |h pp. 1-12  |p Graphs Comb.  |x 09110119  |w (AR-BaUEN)CENRE-4859  |t Graphs and Combinatorics 
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