摘要: 构造3个不含C4的图,得到3个圈对完全图的Ramsey数的新下界:r(C4,K9)≥25,r(C4,K14)≥49,r(C4,K27)≥121.
杨铀; 薛秀谦; 段滋明; . 圈对完全图Ramsey数r(C4,Kn)的3个新下界[J]. 广东工业大学学报, 2003, 20(1): 86-88.
YANG You,XUE Xiuqian,DUAN Ziming. Lower Bounds of Three Ramsey Numbers for C4 vs. a Complete Graph[J]. Journal of Guangdong University of Technology, 2003, 20(1): 86-88.