引用本文: |
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苏文龙,罗海鹏.Ramsey数R(6,n)的三个下界[J].广西科学,1998,5(2):131-131,134. [点击复制]
- Su Wenlong,Luo Haipeng.Lower Bounds of Three Ramsey Numbers R(6,n)[J].Guangxi Sciences,1998,5(2):131-131,134. [点击复制]
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摘要: |
构造3个新的素数阶循环图.从而得到3个Ramsey数的下界:R(6,15)≥272,R(6,16)≥308,R(6,17)≥422. |
关键词: Ramsey数 下界 素数阶循环图 |
DOI: |
投稿时间:1997-09-05 |
基金项目:广西科学基金资助项目。 |
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Lower Bounds of Three Ramsey Numbers R(6,n) |
Su Wenlong, Luo Haipeng
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(Guangxi Wuzhou No.1 Middle School, Wuzhou, Guangxi, 543002) |
Abstract: |
Three new prime order cyclic graphs are structured.Lower bounds of three Ramsey numbers are obtained:R(6,15) ≥ 272,R(6,16) ≥ 308,R(6,17) ≥ 422. |
Key words: Ramsey number lower bound prime order cyclic graph |