The Zarankiewicz problem on tripartite graphs

Francesco Di Braccio, Freddie Illingworth

In 1975, Bollobás, Erdős, and Szemerédi asked for the smallest $\ddot{I}„$ such that an $n\times n\times n$ tripartite graph with minimum degree $n+\ddot{I}„$ must contain $K_{t,t,t}$,…