| 引用本文： |
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苏文龙,罗海鹏,吴康.Ramsey数R(4,q)的3个下界[J].广西科学院学报,1997,(4):9-10. [点击复制]
- Su Wenlong,Luo Haipeng,Wu Kang.Lower Bounds of Three Ramsey Numbers R(4,q)[J].Journal of Guangxi Academy of Sciences,1997,(4):9-10. [点击复制]
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| 摘要: |
| 构造了3个新的素数阶循环图,从而得到了3个Ramsey数的下界:R(4,20)≥200,R(4,21)≥224,R(4,22)≥252.。 |
| 关键词: Ramsey数 下界 素数阶循环图 |
| DOI： |
| 投稿时间：1997-07-23 |
| 基金项目:广西科学基金 |
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| Lower Bounds of Three Ramsey Numbers R(4,q) |
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Su Wenlong1, Luo Haipeng2, Wu Kang3
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| (1.Wuzhou No.1 Middle School of Guangxi, Wuzhou, 543002;2.Guangxi Academy of Sciences, Nanning, 530031;3.South China Normal University, Guangzhou, 510631) |
| Abstract: |
| Three new prime order cyclic graph were structured, so three lower bounds of Ramsey numbers were obtained:R(4,20) ≥ 200, R(4,21) ≥ 224, R(4, 22) ≥ 252. |
| Key words: Ramsey number Lower bound prime order cyclic graph |
