Symplectic Geometry Seminar Monday, Jan 12, at 4pm Room 383N
نویسنده
چکیده
In this talk, we will introduce a real analogue of Noether-Lefschetz number which captures the existence of holomorphic discs with boundary on special Lagrangians. We will study the holomorphic discs counting on Calabi-Yau 3-folds with K3 fibration. The open Gromov-Witten invariant on such Calabi-Yau 3-folds (when it is well-defined) can be expressed in terms of reduced open Gromov-Witten invariants of K3 surfaces and the real Noether-Lefschetz numbers. http://math.stanford.edu/~ionel/sgs.html
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