David Conlon (Caltech): The regularity method for graphs with few 4-cycles

Whole-channel inclusion: Webinar in Additive Combinatorics is an honest teaching channel (title sample + 3 transcripts read: All three transcripts show genuine expert-level research seminar lectures with structured mathematical explanations, consistent with the channel's whole verdict.); this title passed a strict title check (sonnet) after a labelling pass.