Abstract
We prove that the Fano variety of lines of a generic cubic fourfold containing a plane is isomorphic to a moduli space of twisted stable complexes on a K3 surface. On the other hand, we show that the Fano varieties are always birational to moduli spaces of twisted stable coherent sheaves on a K3 surface. The moduli spaces of complexes and of sheaves are related by wall-crossing in the derived category of twisted sheaves on the corresponding K3 surface.
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Macrì, E., Stellari, P. Fano varieties of cubic fourfolds containing a plane. Math. Ann. 354, 1147–1176 (2012). https://doi.org/10.1007/s00208-011-0776-7
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DOI: https://doi.org/10.1007/s00208-011-0776-7