Effect of vertex deletion on the weak Roman domination number of a graph
Let G=(V,E)be a graph and f:V→{0,1,2}be a function. The weight of a vertex u∈V is f(u)and a vertex u with weightf(u)=0 is said to be undefended with respect to f, if it is not adjacent to a vertex with positive weight. The function f is a weak Roman dominating function (WRDF) if each vertex u with f...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Taylor & Francis Group
2019-08-01
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Series: | AKCE International Journal of Graphs and Combinatorics |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0972860016301384 |