New lower bounds of classical Ramsey number R (6,12), R (6,14) and R (6,15)

作者：Luo, HP^*; Su, WL; Li, Q

来源：Chinese Science Bulletin, 1998, 43(10): 817-818.

DOI：10.1007/BF03182742

• Ramsey number
• lower bound
• cyclic graph

Three new cyclic graphs are constructed by using a computer, and the lower bounds of three Ramsey numbers obtained: R (6, 12) greater than or equal to 224, R (6, 14) greater than or equal to 258, R (6, 15) greater than or equal to 338, which fill in three blanks in the table of bounds of Ramsey numbers.

• 出版日期1998-5
• 单位上海交通大学; 广西科学院