Deformation and Unobstructedness of Determinantal Schemes

Jan O. Kleppe, Rosa M. Miró-Roig

Let $Hil{b}^{p(t)}(P^n)$ be the Hilbert scheme of closed subschemes of $P^n$ with Hilbert polynomial $p(t)\in Q[t]$, and let $W:=\overline{W(\underline{b};\underline{a};r)}$ be th…