ramsey number

2023-06-08 / Last updated : 2023-06-08 Ferdinand Ihringer Mathematics

Finite Geometry Beats the Random Process

I am very happy about today’s result by Sam Mattheus and Jacques Verstraete proving an almost tight bound on the off-diagonal Ramsey number r(4, t). This beats the bound by Bohman and Keevash using the random process. See Anurag’s post above for details. Just yesterday I gave a plenary talk at CanaDAM about off-diagonal Ramsey […]

2020-07-04 / Last updated : 2020-07-04 Ferdinand Ihringer Mathematics

R(5, 22) and R(6, 21)

A quick post about small Ramsey numbers. I like to write on my blog about things which I do not intend to publish, but also do not want to keep as private knowledge. This is one of these posts. Stanisław P. Radziszowski writes the following in the 15th revision of his survey on small Ramsey […]