Flo Pfender from CU Denver will be telling us about R(3,k) in two bites (abstract below). Seminar will be 2:10-3pm on Thursday in Carver 401.
Abstract: We improve the lower bound for the extreme off-diagonal Ramsey numbers
R(3,k) \ge (1/2 -o(1)) k^2/log k.
Avoiding the use of a nibble, our proof is significantly less technical than all previous proofs proving bounds with the same correct order of magnitude.
This is joint work with Zion Hefty, Paul Horn and Dylan King.