Burning a graph is hard

被引:48
作者
Bessy, Stephane [1 ]
Bonato, Anthony [2 ]
Janssen, Jeannette [3 ]
Rautenbach, Dieter [4 ]
Roshanbin, Elham [3 ]
机构
[1] LIRMM, Montpellier, France
[2] Ryerson Univ, Dept Math, Toronto, ON M5B 2K3, Canada
[3] Dalhousie Univ, Dept Math & Stat, Halifax, NS B3H 3J5, Canada
[4] Ulm Univ, Inst Optimizat & Operat Res, Ulm, Germany
基金
加拿大自然科学与工程研究理事会;
关键词
Graph burning; Computational complexity; NP-complete; 3-partition; Polynomial time algorithm; Approximation algorithm; FIREFIGHTER PROBLEM;
D O I
10.1016/j.dam.2017.07.016
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Graph burning is a model for the spread of social contagion. The burning number is a graph parameter associated with graph burning that measures the speed of the spread of contagion in a graph; the lower the burning number, the faster the contagion spreads. We prove that the corresponding graph decision problem is NP-complete when restricted to acyclic graphs with maximum degree three, spider graphs and path-forests. We provide polynomial time algorithms for finding the burning number of spider graphs and path forests if the number of arms and components, respectively, are fixed. Finally, we describe a polynomial time approximation algorithm with approximation factor 3 for general graphs. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:73 / 87
页数:15
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