Abstract
Given two real numbers \(b\ge a>0\), an (a, b)-Roman dominating function on a graph \(G=(V,E)\) is a function \(f:V\rightarrow \{0,a,b\}\) satisfying the condition that every vertex v for which \(f(v)=0\) is adjacent to a vertex u for which \(f(u)=b\). In the present paper, we design a linear-time algorithm to produce a minimum (a, b)-Roman dominating function for cacti, a superclass of trees and different from chordal graphs.
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Acknowledgements
This paper is partially supported by the Natural Science Foundation of Jiangsu Province (No. BK20151117), and the second author was supported by the Babol Noshirvani University of Technology under research grant number BNUT/385001/97.
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Zhao, Y., Ahangar, H.A., Liao, Z., Chellali, M. (2019). (a, b)-Roman Domination on Cacti. In: Cao, BY., Zhong, YB. (eds) Fuzzy Sets and Operations Research. ICFIE 2017. Advances in Intelligent Systems and Computing, vol 872. Springer, Cham. https://doi.org/10.1007/978-3-030-02777-3_18
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DOI: https://doi.org/10.1007/978-3-030-02777-3_18
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