On mirror symmetry for Grassmannians

Konstanze Rietsch (King's College London)

Tuesday 11th December, 2012 15:00-16:00 Maths 325


I will explain a new way to write down a Landau-Ginzburg model for an arbitrary Grassmannian X in terms of Pluecker coordinates on a dual Grassmannian.  Our main result is that we obtain integral formulas for the coefficients of Givental's J-function (and more). In proving these formulas we make heavy use of the cluster algebra structure of the Grassmannian and associated combinatorics, of which I will try to give a glimpse.

(Joint work with Robert Marsh)

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