Dergiler / Turkish Journal of Mathematics / 2011 / Cilt: 35 - Sayı: 3

Domination polynomials of cubic graphs of order 10

Sayfa
355–366
DOI
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Özet

Let G be a simple graph of order n. The domination polynomial of G is the polynomial D(G,x)=\sumi=g(G)n d(G,i) xi, where d(G,i) is the number of dominating sets of G of size i, and g(G) is the domination number of G. In this paper we study the domination polynomials of cubic graphs of order 10. As a consequence, we show that the Petersen graph is determined uniquely by its domination polynomial.

Abstract

Let G be a simple graph of order n. The domination polynomial of G is the polynomial D(G,x)=\sumi=g(G)n d(G,i) xi, where d(G,i) is the number of dominating sets of G of size i, and g(G) is the domination number of G. In this paper we study the domination polynomials of cubic graphs of order 10. As a consequence, we show that the Petersen graph is determined uniquely by its domination polynomial.

Anahtar kelimeler: Domination polynomial, equivalence class, petersen graph, cubic graphs