Abstract:
Let S be a smooth del Pezzo surface over C of degree d and HilbnS be the Hilbert scheme that parameterizes 0-dimensional subschemes of length n. In this paper, we construct a flat family of deformations of HilbnS which can be conceptually understood as the Hilbert scheme of deformed non-commutative del Pezzo surfaces. Further we show that each deformed HilbnS carries a generically symplectic holomorphic Poisson structure. Moreover, the generic deformation of HilbnS has an (11−d)-dimensional moduli space and each of the fibers is of the form that we construct.
Key words and phrases:
Hilbert scheme, exceptional collection, geometric invariant theory, holomorphic Poisson structure.
Received:July 29, 2014; in revised form January 20, 2016