On Some Zarankiewicz Numbers and Bipartite Ramsey Numbers for Quadrilateral

Janusz Dybizbański, Tomasz Dzido, Stanisław Radziszowski

The Zarankiewicz number $z(m,n;s,t)$ is the maximum number of edges in a subgraph of $K_{m,n}$ that does not contain $K_{s,t}$ as a subgraph. The bipartite Ramsey number $b(n_1, \c…