Séminaires : Séminaire Géométrie et Topologie

Ce séminaire s’adresse aux géomètres, topologues et dynamiciens au sens large. Il est rattaché aux équipes Analyse Algébrique et Analyse Complexe et Géométrie. Les exposés seront accessibles à une audience large, doctorants inclus. Il se tiendra à Jussieu, le jeudi à 11h, en salle 15-25 502. Le séminaire a l'agenda google suivante: https://calendar.google.com/calendar/b/0?cid=dDgzNTJoczNmdDhlMm5nb2IzMXJwaWpsdHNAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ

In their pioneering four-page long paper of 2010, Galkin and Usnich have hinted some very first applications of singular toric varieties for construction of exotic embeddings in Symplectic Geometry. In a sense, they used a generalization of the classical Delzant theorem from "simple" lattice polygons to lattice polygons with more complicated corners at their vertices. Since then, this technique yielded a plethora of various applications in Symplectic Geometry (obtained by various researchers), both for construction of exotic symplectic embeddings, as well as for the proof of "non-squeezing" of certain symplectic spaces into others. In the talk, I plan to review only a small part of these applications.