Abstract

Let G=(V, E) be a simple graph. A set S ⊆ V is called a dominating set if every vertex v ∈ V is either a member of S or adjacent to a member of S. A set S ⊆ V is a Strong dominating set of G if for every vertex v ∈ V − S there exists a u ∈ S such that uv ∈ E and deg(u) ≥ deg(v). Let Fln be a Flower graph which is obtained from helm graph by joining each pendant vertex to the central vertex. Let Sd(Flnj) be the family of strong dominating set of Flower graph with number of elements in the set j and let Sd(Fln,j)= |Sd(Flnj)|. In this paper we establish Fln and obtain a iterative formula for Sd(Flnj). Using this iterative formula we consider the polynomial for SD(Fln,x)=∑j=02n(2nj) xj+1. Also we have determine several properties of polynomials on Flower graphs.

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