New Lower Bounds for 28 Classical Ramsey Numbers

[摘要] We establish new lower bounds for $28$ classical two and three color Ramsey numbers, and describe the heuristic search procedures used. Several of the new three color bounds are derived from the two color constructions; specifically, we were able to use $

[学科分类] 离散数学和组合数学

[关键词] Ramsey numbers;edge coloring