Smooth asymptotics for collapsing Ricci-flat metrics


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November 17, 2020 8:00 pm - 9:00 pm
via Zoom Video Conferencing

Valentino Tosatti - McGill University

I will discuss the problem of understanding the collapsing behavior of Ricci-flat Kahler metrics on a Calabi-Yau manifold that admits a holomorphic fibration structure, when the Kahler class degenerates to the pullback of a Kahler class from the base. I will present recent work with Hans-Joachim Hein where we obtain a priori estimates of all orders for the Ricci-flat metrics away from the singular fibers, as a corollary of a complete asymptotic expansion.