### Casey Tompkins, Extremal forbidden poset problems in Boolean and linear lattices

Room B232 IBS (기초과학연구원)Extending the classical theorem of Sperner on the maximum size of an antichain in the Boolean lattice, Katona and Tarján introduced a general extremal function $La(n,P)$, defined to be the maximum size of a family of subsets of $$ which does not contain a given poset $P$ among its containment relations. In this talk, I …