Title: Hilbert schemes of some threefold scrolls over đť”˝<sub> <i>e</i> </sub>
Abstract: Abstract Hilbert schemes of suitable smooth, projective threefold scrolls over the Hirzebruch surface 𝔽 e , e ≥ 2, are studied. An irreducible component of the Hilbert scheme parametrizing such varieties is shown to be generically smooth of the expected dimension, and the general point of such a component is described.