(Circular) backbone colouring: Forest backbones in planar graphs
被引:8
|
作者:
Havet, Frederic
论文数: 0引用数: 0
h-index: 0
机构:
UNSA, CNRS I3S, Projet Coati, Paris, France
INRIA Sophia Antipolis, Sophia Antipolis, France
Simon Fraser Univ, PIMS, UMI 3069, CNRS, Burnaby, BC V5A 1S6, CanadaUNSA, CNRS I3S, Projet Coati, Paris, France
Havet, Frederic
[1
,2
,3
]
King, Andrew D.
论文数: 0引用数: 0
h-index: 0
机构:
Simon Fraser Univ, Dept Math, Burnaby, BC V5A 1S6, Canada
Simon Fraser Univ, Dept Comp Sci, Burnaby, BC V5A 1S6, CanadaUNSA, CNRS I3S, Projet Coati, Paris, France
King, Andrew D.
[4
,5
]
Liedloff, Mathieu
论文数: 0引用数: 0
h-index: 0
机构:
Univ Orleans, Lab Informat Fondamentale Orleans, Orleans, FranceUNSA, CNRS I3S, Projet Coati, Paris, France
Liedloff, Mathieu
[6
]
Todinca, Loan
论文数: 0引用数: 0
h-index: 0
机构:
Univ Orleans, Lab Informat Fondamentale Orleans, Orleans, FranceUNSA, CNRS I3S, Projet Coati, Paris, France
Todinca, Loan
[6
]
机构:
[1] UNSA, CNRS I3S, Projet Coati, Paris, France
[2] INRIA Sophia Antipolis, Sophia Antipolis, France
[3] Simon Fraser Univ, PIMS, UMI 3069, CNRS, Burnaby, BC V5A 1S6, Canada
[4] Simon Fraser Univ, Dept Math, Burnaby, BC V5A 1S6, Canada
[5] Simon Fraser Univ, Dept Comp Sci, Burnaby, BC V5A 1S6, Canada
[6] Univ Orleans, Lab Informat Fondamentale Orleans, Orleans, France
Backbone colouring;
Planar graph;
Tree backbone;
NP-complete;
D O I:
10.1016/j.dam.2014.01.011
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Consider an undirected graph G and a subgraph H of G, on the same vertex set. The q-backbone chromatic number BBCq(G, H) is the minimum k such that G can be properly coloured with colours from {1,...,k}, and moreover for each edge of H, the colours of its ends differ by at least q. In this paper we focus on the case when G is planar and H is a forest. We give a series of NP-hardness results as well as upper bounds for BBCq(G, H), depending on the type of the forest (matching, galaxy, spanning tree). Eventually, we discuss a circular version of the problem. (C) 2014 Elsevier B.V. All rights reserved.
机构:
UNSA, CNRS, I3S, Projet COATI, Nice, France
INRIA Sophia Antipolis, Valbonne, France
Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada
CNRS, UMI 3069, PIMS, F-75700 Paris, FranceUNSA, CNRS, I3S, Projet COATI, Nice, France
Havet, Frederic
King, Andrew D.
论文数: 0引用数: 0
h-index: 0
机构:
Simon Fraser Univ, Dept Math, Burnaby, BC V5A 1S6, Canada
Simon Fraser Univ, Dept Comp Sci, Burnaby, BC V5A 1S6, CanadaUNSA, CNRS, I3S, Projet COATI, Nice, France
机构:
ParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, BrazilParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, Brazil
Araújo, C.S.
Araújo, J.
论文数: 0引用数: 0
h-index: 0
机构:
ParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, Brazil
LIRMM, Université de Montpellier, Montpellier, FranceParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, Brazil
Araújo, J.
Silva, A.
论文数: 0引用数: 0
h-index: 0
机构:
ParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, BrazilParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, Brazil
Silva, A.
Cezar, A.A.
论文数: 0引用数: 0
h-index: 0
机构:
ParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, BrazilParGO, Departamento de Matemática, Universidade Federal do Ceará, Fortaleza, Brazil