Abstract:
Let $S$ be a smooth del Pezzo surface over $\mathbb C$ of degree $d$ and $\mathrm{Hilb}^nS$ be the Hilbert scheme that parameterizes $0$-dimensional subschemes of length $n$. In this paper, we construct a flat family of deformations of $\mathrm{Hilb}^nS$ which can be conceptually understood as the Hilbert scheme of deformed non-commutative del Pezzo surfaces. Further we show that each deformed $\mathrm{Hilb}^nS$ carries a generically symplectic holomorphic Poisson structure. Moreover, the generic deformation of $\mathrm{Hilb}^nS$ 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.