The 2-rainbow domination number of Cartesian product of cycles

Simon Brezovnik, Darja Rupnik Poklukar, Janez Žerovnik

A $k$-rainbow dominating function ($k$RDF) of $G$ is a function that assigns subsets of $\{1,2,...,k\}$ to the vertices of $G$ such that for vertices $v$ with $f(v)=\varnothing$ we…