Specialization of Néron-Severi groups of K3 surfaces
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filed under:
Seminar
Francois Charles (Rennes, z.Z. Bonn) - Seminar Algebraic Geometry (SAG)
| What |
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| When |
Oct 27, 2011 from 10:30 am to 11:30 am |
| Where | Hörsaal MPI, Vivatsgasse 7 |
| Contact Name | Sachinidis |
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We discuss several questions related to the behaviour of the Néron-Severi groups of K3 surfaces under specialization over function fields and number fields. Such topics have some implications for the existence of rational curves, along the lines of recent papers by Bogomolov-Hassett-Tschinkel and Li-Liedtke as well as for the computation of Picard numbers of K3 surfaces over number fields.
