Title: On irreducible symplectic 4-folds numerically equivalent to $(K3)^{[2]}$
Abstract: We address the problem of classification of hyper-Kahler fourfolds with $b_2=23$. In particular we prove some special cases of the Conjecture of O'Grady about hyper-Kahler $4$-folds numerically equivalent to the Hilbert scheme of two points on a $K3$ surface.
Publication Year: 2010
Publication Date: 2010-04-19
Language: en
Type: preprint
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Cited By Count: 1
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