Anti-ramsey Numbers for Disjoint Copies of Graphs
نویسندگان
چکیده
A subgraph of an edge-colored graph is called rainbow if all of its edges have different colors. For a graph G and a positive integer n, the anti-Ramsey number ar(n, G) is the maximum number of colors in an edge-coloring of Kn with no rainbow copy of H. Anti-Ramsey numbers were introduced by Erdős, Simonovits and Sós and studied in numerous papers. Let G be a graph with anti-Ramsey number ar(n, G). In this paper we show the lower bound for ar(n, pG), where pG denotes p vertex-disjoint copies of G. Moreover, we prove that in some special cases this bound is sharp.
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