Article in volume
Authors:
Title:
Protection of lexicographic product graphs
PDFSource:
Discussiones Mathematicae Graph Theory 42(1) (2022) 139-158
Received: 2019-01-21 , Revised: 2019-08-23 , Accepted: 2019-08-23 , Available online: 2019-10-14 , https://doi.org/10.7151/dmgt.2243
Abstract:
In this paper, we study the weak Roman domination number and the secure
domination number of lexicographic product graphs. In particular, we show that
these two parameters coincide for almost all lexicographic product graphs.
Furthermore, we obtain tight bounds and closed formulas for these parameters.
Keywords:
lexicographic product, weak Roman domination, secure domination, total domination, double total domination
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