Let G be a properly edge-colored graph. A rainbow matching of G is a matching in which no two edges have the same color. Let 5 denote the minimum degree of G. We show that if Iv(G)I 〉 (σ2 + 14σ + 1)/4, then G...Let G be a properly edge-colored graph. A rainbow matching of G is a matching in which no two edges have the same color. Let 5 denote the minimum degree of G. We show that if Iv(G)I 〉 (σ2 + 14σ + 1)/4, then G has a rainbow matching of size 6, which answers a question asked by G. Wang [Electron. J. Combin., 2011, 18: #N162] affirmatively. In addition, we prove that if G is a properly colored bipartite graph with bipartition (X, Y) and max{lXl, IYI} 〉 (σ2 + 4σ - 4)/4, then G has a rainbow matching of size σ.展开更多
文摘Let G be a properly edge-colored graph. A rainbow matching of G is a matching in which no two edges have the same color. Let 5 denote the minimum degree of G. We show that if Iv(G)I 〉 (σ2 + 14σ + 1)/4, then G has a rainbow matching of size 6, which answers a question asked by G. Wang [Electron. J. Combin., 2011, 18: #N162] affirmatively. In addition, we prove that if G is a properly colored bipartite graph with bipartition (X, Y) and max{lXl, IYI} 〉 (σ2 + 4σ - 4)/4, then G has a rainbow matching of size σ.