Seminar | February 25 | 2-3 p.m. | 402 LeConte Hall
Vincent Bouchard, University of Alberta
Virasoro constraints are omnipresent in enumerative geometry. Recently, Kontsevich and Soibelman introduced a generalization of Virasoro constraints in the form of Airy structures. It can also be understood as an abstract framework underlying the topological recursion of Chekhov, Eynard and Orantin. In this talk I will explain how the triumvirate of Virasoro constraints, Airy structures and topological recursion can be generalized to W-algebra constraints, higher Airy structures and higher topological recursion. I will briefly discuss the enumerative geometric meaning of the resulting W-constraints in the context of open and closed intersection theory on the moduli spaces or curves with r-spin structure and its variants.