The product of the total restrained domination numbers of a graph and its complement

Johannes H. Hattingh, Ernst J. Joubert

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Let G = (V, E) be a graph. A set S ⊆ V is a total restrained dominating set if every vertex is adjacent to a vertex in S, and every vertex in V − S is adjacent to a vertex in V −S. The total restrained domination number of G, denoted by γtr (G), is the smallest cardinality of a total restrained dominating set of G. In this paper we show that if G is a graph of order n ≥ 4, then (Formula Presented.). We also characterize the graphs achieving the upper bound.

Original languageEnglish
Pages (from-to)297-308
Number of pages12
JournalAustralasian Journal of Combinatorics
Volume70
Issue number3
Publication statusPublished - 2018

ASJC Scopus subject areas

  • Discrete Mathematics and Combinatorics

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