Geometry/Physics Seminar

Title: Double ramification cycle and integrable hierarchies
Speaker: Paolo Rossi
Speaker Info: CNRS
Brief Description:
Special Note:

I will report on a recent series of papers with Buryak, Dubrovin and Guéré using the intersection theory of the double ramification cycle (the cycle in the moduli space of stable marked curves representing those curves whose marked points support a principal divisor) to associate an integrable Hamiltonian system of evolutionary PDEs to a cohomological field theory. Applications include previously unknown quantizations of famous integrable hierarchies (KdV, ILW, Gelfand-Dickey, Toda and more) and a (partially conjectural) relation to the Witten-Kontsevich theorem and the Dubrovin-Zhang hierarchy.
Date: Tuesday, November 10, 2015
Time: 4:00pm
Where: Lunt 107
Contact Person: Ezra Getzler
Contact email:
Contact Phone:
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