给出基于对控制数与双控制数强相等的图的一个性质,并依据该性质,刻画了基于对控制数与双控制数强相等的树及单圈图.
In this paper,a property about graphs with strong equality on paired and double domination numbers is presented,according to this property,the tree and unicyclic graph with strong equality on paired and double domination numbers are characterized.