A következő kombinatorika szeminárium ideje

április 25. (péntek), ! 10:30 !,

helye

Kalmár Intézet, Árpád tér, szemináriumi szoba (második emelet, a folyosó vége)

és előadása:

Karola Mészáros (Cornell University): Product formulas for the volumes of flow polytopes

I will present product formulas for the volumes of a special class of flow polytopes. This class is inspired by the Chan-Robins-Yuen polytope, whose volume is equal to a product of Catalan numbers (although there is no known combinatorial proof of this fact!). I will explain how algebras encode subdivisions of flow polytopes. Finally, I will show how to derive identities involving the Kostant partition function, using a connection with flow polytopes discovered by Postnikov and Stanley.

Mindenkit szeretettel várunk,

Péter

Supported by TÁMOP-4.2.2.A-11/1/KONV-2012-0073, Telemedicine Oriented Research in the Fields of Mathematics, Informatics and Medical Sciences