| Ramsey数R_9(4)的新下界 |
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| 引用本文： | 张正铀,苏文龙,罗海鹏.Ramsey数R_9(4)的新下界[J].广西民族大学学报,1997(1). |
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| 作者姓名： | 张正铀 苏文龙 罗海鹏 |
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| 作者单位： | 广西科委，广西梧州一中，广西科学院 南宁 530012，梧州 543002，南宁 530031 |
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| 摘 要： | 本文用群论和数论研究了素数阶循环图存在4阶团的充要条件,得到了Ramsey数R_9(4)的新下界。
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| 关 键 词： | Ramsey数 下界 循环图 |
A New Lower Bound of Ramsey Number R_9 (4) |
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| Zhang Zhengyou.A New Lower Bound of Ramsey Number R_9 (4)[J].Journal of Guangxi University For Nationalities(Natural Science Edition),1997(1). |
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| Authors: | Zhang Zhengyou |
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| Abstract: | The Sufficient and necessary condition of exists 4 order clique was studied by Group-theory and Number-theory. And a new lower bound of Ramsey number R9 (4) was given. |
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| Keywords: | Ramsey number: Lower bound: Cyclic graph |
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