Aarhus Universitets segl

Optimal symplectic connections on holomorphic submersions

Lars Martin Sektnan (Aarhus University)
Onsdag 18. september 2019 16:15–17:15 Aud. D3 (1531-215)
Seminar
An important question in Kähler geometry is the existence question for canonical metrics. In this talk I will discuss a construction producing such metrics on the total space of fibrations with cscK fibres, in certain "adiabatic" classes where the fibres are small. Such constructions have a rich history going back to the work of Fine, Hong and others. The situation gets more complicated in the presence of automorphisms. I will discuss an equation that we call the optimal symplectic connection equation, that conjecturally determines a canonical choice of fibrewise cscK metrics when the fibres have automorphisms. Assuming the existence of a solution to this equation, we show that the desired metrics on the total space can be constructed. This is joint work with Ruadhaí Dervan.

Organiseret af: QGM
Kontakt: Cristiano Spotti Revideret: 13.09.2019