A note on global total domination in graphs
J. Deva Raj, V. Sujin Flower · Bulletin of Pure & Applied Sciences- Mathematics and Statistics · 2011
A dominating set S of a graph G is a global total dominating set if S is both a global dominating set and a total dominating set. The global total domination number g gt (G) is the minimum cardinality of a global total dominating set of G. In this paper we discuss some results on global total domination number.