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- W2953157036 abstract "We shall prove that any small deformation of a Q-factorial projective symplectic variety with terminal singularities is locally rigid; in other words, it preserves the singularity. In particular, many singular symplectic moduli of semi-stable sheaves on K3 have no smoothings via deformations. As an application of the result, we also prove that the smootheness is preserved under a flop in our symplectic case. We conjecture that a projective symplectic variety has a smoothing by a flat deformation if and only if it has a crepant (symplectic) resolution. This conjecture would be true if the minimal model conjecture were true." @default.
- W2953157036 created "2019-06-27" @default.
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- W2953157036 date "2005-06-27" @default.
- W2953157036 modified "2023-09-27" @default.
- W2953157036 title "On deformations of Q-factorial symplectic varieties" @default.
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