Seminars: Yu. Prokhorov, Degenerations of del Pezzo surfaces in Q-Gorenstein families

SEMINARS


Shafarevich Seminar October 16, 2018 15:00, Moscow, Steklov Mathematical Institute, room 540 (Gubkina 8)

Degenerations of del Pezzo surfaces in Q-Gorenstein families Yu. Prokhorov
Abstract: Consider a family of del Pezzo surfaces over a disc whose total space is Q-Gorenstein. We study the central fiber of such families under additional assumption that it is normal and has at worst log canonical singularities.