“…It was motivated by the classical theorems of Ramsey and Turán and their connections to geometry, analysis, and number theory. Ramsey-Turán theory has attracted a great deal of attention over the last 40 years, see, e.g, [3,4,6,7,8,11,12,15,18,22,23], and a survey by Simonovits and Sós [20].…”