Speaker: Yongtang Shi, Nankai University Place: Academic Building B203 Time:
Abstract
Ramsey theory is an old and difficult area in extremal combinatorics. In this talk, we will introduce Ramsey numbers and Gallai-Ramsey Numbers of graphs. Especially, Gallai-Ramsey Number of complete graphs with four vertices will be presented. Disjoint work with Henry Liu, Colton Magnant, Akira Saito, and Ingo Schiermeyer.