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Wednesday, July 12, 2017

Modern Enumerative Geometry and Connections to Physics Seminar
2:00 pm   in 443 Altgeld Hall,  Wednesday, July 12, 2017
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Submitted by katz.
Michel van Garrel (University of Hamburg)
Rational curves in log K3 surfaces
Abstract: I will address the basic question of how to count rational curves in the log K3 surfaces that arise in type II degenerations. I will give a full conjectural description of these counts in terms of local BPS state counts, and present some partial results towards that conjecture. This is based on joint work with J. Choi, N. Takahashi and S. Katz.