Roman $\{2\}$-domination in graphs and graph products

Faezeh Alizadeh, Hamid Reza Maimani, Leila Parsaei Majd +1

For a graph $G=(V,E)$ of order $n$, a Roman $\{2\}$-dominating function $f:V\to \{0,1,2\}$ has the property that for every vertex $v\in V$ with $f(v)=0$, either $v$ is adjac…