Speaker: Heesang Park (Korea Institute for Advanced Study)

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Title: A simply connected numerical Campadelli surface with an involution
Abstract: In this talk, we construct a simply connected minimal complex surface of general type with $p_g=0$ and $K^2=2$ which has an involution such that the minimal resolution of the quotient by the involution is a simply connected minimal complex surface of general type with $p_g=0$ and $K^2=1$. In order to construct the example, we combine a double covering and $\mathbb{Q}$-Gorenstein deformation. This work is joint work with Dongsoo Shin and Giancarlo Urzua