Marzieh sorudi
Department of Mathematics Azarbaijan Shahid Madani University Tabriz-Iran
[ 1 ] - Co-Roman domination in trees
Abstract: Let G=(V,E) be a graph and let f:V(G)→{0,1,2} be a function. A vertex v is protected with respect to f, if f(v)>0 or f(v)=0 and v is adjacent to a vertex of positive weight. The function f is a co-Roman dominating function, abbreviated CRDF if: (i) every vertex in V is protected, and (ii) each u∈V with positive weight has a neighbor v∈V with f(v)=0 such that the func...
[ 2 ] - Co-Roman dominating of girds
This article has no abstract.
نویسندگان همکار