By a constructive method new lower bounds for seven classical Ramsey numbers are obtained:R(3,29)≥174,R(4,23)≥272,R(5,24)≥488,R(7,12)≥312,R(8,18)≥728,R(8,20)≥860,R(9,21)≥1278.
Wen Long SU
, Hai Peng LUO
, Qiao LI. , {{custom_author.name_en}}.
New Lower Bounds for Seven Classical Ramsey NumbersR(k,l). Journal of Systems Science and Mathematical Sciences, 2000, 20(1): 55-057 https://doi.org/10.12341/jssms09663