| 引用本文： |
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苏文龙,罗海鹏.经典Ramsey数R(5,18)、R(5,23)和R(5,26)的新下界[J].广西科学,1998,5(4):282-284. [点击复制]
- Su Wenlong,Luo Haipeng.New Lower Bounds of Classical Ramsey Numbers R(5,18)、R(5,23) and R(5,26)[J].Guangxi Sciences,1998,5(4):282-284. [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数的新下界:R(5,18)≥282,R(5,23)≥432,R(5,26)≥464. |
| 关键词: Ramsey数 下界 素数阶循环图 |
| DOI： |
| 投稿时间：1998-04-24 |
| 基金项目:广西科学基金资助项目。 |
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| New Lower Bounds of Classical Ramsey Numbers R(5,18)、R(5,23) and R(5,26) |
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Su Wenlong, Luo Haipeng
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| (Guangxi Computing Center, 32 Xinghulu, Nanning, Guangxi, 530022) |
| Abstract: |
| Three prime order cyclic graphs are structured, and new lower bounds of three Ramsey numbers are obtained:R(5,18) ≥ 282, R(5,23) ≥ 432, R(5,26) ≥ 464. |
| Key words: Ramsey number lower bound prime order cyclic graph |
