%0 Journal Article %T The Signed Domination Number of Cartesian Product of Two Paths %A Mohammad Hassan %A Muhsin Al Hassan %A Mazen Mostafa %J Open Journal of Discrete Mathematics %P 45-55 %@ 2161-7643 %D 2020 %I Scientific Research Publishing %R 10.4236/ojdm.2020.102005 %X Let G be a finite connected simple graph with vertex set V(G) and edge set E(G). A function f:V(G) ¡ú {1,1} is a signed dominating function if for every vertex v¡ÊV(G), the closed neighborhood of v contains more vertices with function values 1 than with −1. The signed domination number ¦Ãs(G) of G is the minimum weight of a signed dominating function on G. In this paper, we calculate The signed domination numbers of the Cartesian product of two paths Pm and Pn for m = 3, 4, 5 and arbitrary n. %K Path %K Cartesian Product %K Signed Dominating Function %K Signed Domination Number %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=98067