slideshow 3

Cohomology in algebra, geometry, physicsand statistics

KP integrability of triple Hodge integrals

Speaker’s name: 
Alexander Alexandrov
Speaker’s affiliation: 
Center for Geometry and Physics, IBS Pohang, South Korea


ZOOM meeting
Wednesday, 2. December 2020 - 11:30 to 12:30
In my talk I will describe a relation between the Givental group of rank one and Heisenberg-Virasoro symmetry group of the KP integrable hierarchy. In particular I will show that only a two-parameter family of the Givental operators can be identified with elements of the Heisenberg-Virasoro symmetry group. This family describes triple Hodge integrals satisfying the Calabi-Yau condition. Using identification of the elements of two groups it is possible to prove that the generating function of triple Hodge integrals satisfying the Calabi-Yau condition and its $\Theta$-version are tau-functions of the KP hierarchy. This generalizes the result of Kazarian on KP integrability in case of linear Hodge integrals. I will also describe the relation of this family of tau-functions with the generalized Kontsevich matrix model. My talk is based on two papers, arXiv:2009.01615 and arXiv:2009.10961.

Our ZOOM meeting shall be  open at   11.15  at

Meeting ID: 995 9841 3922

Passcode: cartan

and  closed  at  13.00