U. Haifa Topology & Geometry seminar: Sunday, May 8, 2022. Speaker: Sourav Das (Haifa). Title: “Title:  Higgs bundles on nodal curves”.

Author: raphy May 6, 2022

Time: 17:00 (Israel Time)

Location: On Zoom

Recording:

https://us02web.zoom.us/rec/share/u3nIzULAEKHfZe3iCm0KZxftqdZ0Pzcjd0EGV3ipl6eZ_I_IOGMzzsCYk42k5sXJ.8zyeCrlu8P3ySdxb

Abstract.

In I987 Nigel Hitchin proved that the moduli space of Higgs bundles on a smooth projective curve (of genus greater than equal to 2) has a natural symplectic structure. In this talk I will briefly recall a few features of the moduli space. Then I will discuss the moduli spaces of Higgs bundles on nodal curves and how they are related to the moduli spaces of Higgs bundles on smooth curves via nice degenerations. I will also show that there is a relative log-symplectic structure on such a degeneration. 

ZOOM COORDINATES:

https://us02web.zoom.us/j/84987591026?pwd=aTJWcFlOSldKck5leGt2d25CYkRqZz09

Meeting ID: 849 8759 1026

Future speakers:

Viktoriya Ozornova (Bonn) – May 15th

Andrew Salch (Wayne State) – May 22^nd

Markus Upmeier (Aberdeen) – May 29^th

Denis-Charles Cisinski (Regensburg) – June 5^th.