Ramsey numbers of degenerate graphs

Computer Science/Discrete Mathematics Seminar I
Topic:Ramsey numbers of degenerate graphs
Speaker:Choongbum Lee
Affiliation:Massachusetts Institute of Technology
Date:Monday, September 28
Time/Room:11:15am - 12:15pm/S-101
Video Link:https://video.ias.edu/csdm/2015/0928-ChoongbumLee

The Ramsey number of a graph $G$ is the minimum integer $n$ for which every edge-coloring of the complete graph on $n$ vertices with two colors contains a monochromatic copy of $G$. A graph is $d$-degenerate if all its subgraphs have a vertex of degree at most $d$. In this talk, we prove that for all $d$, there exists a constant $c$ such that every $d$-degenerate graph $G$ has Ramsey number at most $c|V(G)|$. This solves a conjecture of Burr and Erdős from 1973.