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Mirrors of the Johnson-Kollár series

HARVARD-MIT ALGEBRAIC GEOMETRY

February 4, 2020      3:00 pm
Speaker: Giulia Gugiatti - Imperial College

I will construct LG mirrors for the Johnson-Kollár series of anticanonical del Pezzo surfaces in weighted projective 3-spaces. The main feature of these surfaces is that their anticanonical linear system...
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Special loci of rank one local systems

HARVARD-MIT ALGEBRAIC GEOMETRY

November 5, 2019      3:00 pm

Joint with Moritz Kerz. We show a structure theorem on those loci which enables us to deduce several consequences, one of which being Hard Lefschetz in rank one in positive...
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