AbstractMany important posets (partially ordered sets) in combinatorics have algebriac interpretations. We will go over three families of examples: toric varieties, Schubert varieties and matroid Schubert varieties. We will discuss how to translate some of the combinatorical invariants into the geometric ones, and the application of intersection cohomology groups in solving combinatorical probl...
Programme2023-11-2609:00-09:30 A3-2a-302Opening09:30-10:30 A3-2a-302Nicolai Reshetikhin( YMSC & BIMSA )Hybrid integrable systemsThis talk is focused on quantum integrable systems on a classical background. In physics such systems are known as Born-Oppenheimer approximations, when heavy atoms are classical and electrons are quantum. In mathematics, perhaps, most known structures of this type are...