导师信息#北京交通大学计算机科学与技术研究生导师介绍#孙永奇 ...

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基本信息办公电话咨询QQ、微信：2544906生. 三色拉姆塞数R3(C8)研究. 北京交通大学学报, 2, pp14-17, 2011.Sun Yongqi(孙永奇), Yang Yuansheng, Lin Xiaohui, Shi Lei. Extremal graphs without four-cycles or five-cycles. Utilitas Mathematica, 80, pp115-130, 2009. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Lin Xiaohui, Song Yanan. The planar Ramsey number PR(C4, K7). Discrete Mathematics, 308, pp5841-5848, 2008. (SCI、EI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Wang Zhihai. The planar Ramsey numbers PR(K4-e, Kl-e). Ars Combinatoria, 88, pp3-20, 2008. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Wang Zhihai. The value of the Ramsey number R5(C6). Utilitas Mathematica, 76, pp25-31, 2008. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Lin Xiaohui, Qiao Jing. The planar Ramsey number PR(K4-e, K5). Discrete Mathematics, 307, pp137-142, 2007. (SCI、EI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Jiang Baoqi, Lin Xiaohui, Shi Lei. On multicolor Ramsey numbers for even circle in graphs. Ars Combinatoria, 84, pp333-343, 2007. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Lin Xiaohui, Zheng Wenping. The value of the Ramsey number R4(C4). Utilitas Mathematica, 73, pp33-44, 2007. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Lin Xiaohui, Zheng Wenping. On the three color Ramsey numbers R(Cm, C4, C4). Ars Combinatoria, 84, pp3-11, 2007. (SCI检索)Sun Yongqi(孙永奇), Yang Yuansheng, Xu Feng, Li Bingxi. New lower bounds on the multicolor Ramsey numbers Rr(C2m). Graphs and Combinatorics, 22, pp283-288, 2006. (SCI检索)孙永奇，杨元生，王伟等，“三色Ramsey数R(Cm1, Cm2, Cm3)研究”，大连理工大学学报, 2006,46(3): 428-433.