On the Edge-graceful Spectra of the Cylinder Graphs (I)
نویسندگان
چکیده
Let G be a (p,q)-graph and k~O. A graph G is said to be k-edge graceful if the edges can be labeled by k,k+I, ... ,k+q-I so that the vertex sums are distinct, modulo p. We denote the set of all k such that G is k-edge graceful by egS(G). The set is called the edge-graceful spectrum ofG. In this paper, we are concerned with the problem of exhibiting sets of natural numbers which are the edge-graceful spectra of the cylinder CnxPm for certain values of n and m.
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