期刊文献+

计算经典Ramsey数R(3,q)下界的新方法

New Method for Computing Lower Bounds for Classical Ramsey Numbers R(3,q)
下载PDF
导出
摘要 发现计算经典Ramsey数R(3,q)下界的一种新方法——自同构循环图的方法,并得到6个经典Ramsey数的新下界:R(3,35)≥226,R(3,37)≥241,R(3,38)≥246,R(3,40)≥261,R(3,43)≥281,R(3,44)≥293. By using a newly found method for computing lower bounds for classical Ramsey numbersR(3,q) automorphism cyclic graph method, we get new lower bounds for six classical Ramseynumbers: R(3,35) ≥ 226,R(3,37) ≥ 241,R(3,38) ≥ 246,R(3,40) ≥ 261,R(3,43) ≥ 281 andR (3,44)≥293.
出处 《广西科学》 CAS 2007年第4期334-338,341,共6页 Guangxi Sciences
基金 国家自然科学基金项目(批准号:60563008) 广东省自然科学基金项目(05005928) 广西自然科学基金项目(桂科字0640037) 梧州学院科研基金项目资助
关键词 RAMSEY数 下界 自同构 循环图 Ramsey number,lower bound,automorphism, cyclic graph
  • 相关文献

参考文献11

  • 1GREENWOOD R E,GLEASON A M.Combinatorial relations and chromatic grap hs[J].Canadian Journal of Mathematics,1955,7:1-7.
  • 2RADZISZOWSKI S P.Small Ramsey numbers[J].The Electronic Journal of Combinatorics,2006,DS1 #11:1-60.
  • 3罗海鹏,苏文龙,李乔.经典Ramsey数R(6,12),R(6,14)和R(6,15)的新下界[J].科学通报,1998,43(12):1336-1337. 被引量:22
  • 4苏文龙,罗海鹏,李乔.多色经典Ramsey数R(q,q,…,q)(n个)的下界[J].中国科学(A辑),1999,29(5):408-413. 被引量:22
  • 5SU WENLONG,LUO HAIPENG,ZHANG ZHENGYOU,et al.New lower bounds of fifteen classical Ramsey numbers[J].Australasian Journal of Combinatorics,1999(19):91-99.
  • 6SU WENLONG,LUO HAIPENG,SHEN YUNQIU.New lower bounds for classical Ramsey numbers R(5,13) and R(5,14)[J].Applied Mathematics Letters,1999(12):121-122.
  • 7LUO HAIPENG,SU WENLONG,YUN-QIU SHEN.New lower bounds of ten classical Ramsey Numbers[J].Australasian Journal of Combinatorics,2001(24):81-90.
  • 8LUO HAIPENG,SU WENLONG,LI ZHENCHONG.The properties of self-complementary graphs and new lower bounds for diagonal Ramsey numbers[J].Australasian Journal of Combinatorics,2002(25):103-116.
  • 9SU WENLONG,LI QIAO,LUO HAIPENG,et al.Lower bounds of Ramsey numbers based on cubic residues[J].Discrete Mathematics,2002(250):197-209.
  • 10LI GUIQING,SU WENLONG,LUO HAIPENG.Edge colorings of the complete graph K149 and the lower bounds of three Ramsey numbers[J].Discrete Applied Mathematics,2003(126):167-179.

二级参考文献3

共引文献26

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部