Zichao Dong gave a talk on the maximum size of a set family in which, for each i≤k, every intersection of i members has a prescribed parity at the Discrete Math Seminar

On July 21, 2026, Zichao Dong from the IBS Extremal Combinatorics and Probability Group gave a talk on the maximum size of a set family in which, for each i ≤ k, every intersection of i members has a prescribed parity at the Discrete Math Seminar. The title of his talk was “k-wise odd-even towns“.