Kazhdan seminar: Karim Adiprasito "Positivity in combinatorics and beyond"

Abstract: I will discuss applications of algebraic results to combinatorics, focusing in particular on Lefschetz theorem, Decomposition theorem and Hodge Riemann relations. Secondly, I will discuss proving these results combinatorially, using a technique by McMullen and extended by de Cataldo and Migliorini. Finally, I will discuss Lefschetz type theorems beyond positivity. Recommended prerequisites: basic commutative algebra


Sun, 30/12/2018 - 15:00 to 17:00


Ross 70A