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Algebra Seminar

Severi degrees via representation theory 

Yaim Cooper -- IAS

Location:  SERC 206
Date & time: Wednesday, 24 April 2019 at 2:00PM - 3:00PM

Abstract:  The Severi degrees of P1 x P1 can be computed in terms of an explicit operator on the Fock space F[P1]. We will discuss this and variations on this theme. We will explain how to use this approach to compute the relative Gromov-Witten theory of other surfaces, such as Hirzebruch surfaces and ExP1. We will also discuss operators for calculating descendants.

Joint with R. Pandharipande.