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Value sets of graphs edge-weighted with elements of a finite abelian group

Edgar G. DuCasseMichael L. GarganoLouis V. Quintas — 2010

Discussiones Mathematicae Graph Theory

Given a graph G = (V,E) of order n and a finite abelian group H = (H,+) of order n, a bijection f of V onto H is called a vertex H-labeling of G. Let g(e) ≡ (f(u)+f(v)) mod H for each edge e = u,v in E induce an edge H-labeling of G. Then, the sum H v a l f ( G ) e E g ( e ) m o d H is called the H-value of G relative to f and the set HvalS(G) of all H-values of G over all possible vertex H-labelings is called the H-value set of G. Theorems determining HvalS(G) for given H and G are obtained.

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