On certain moduli spaces of ideal sheaves and Donaldson-Thomas invariants
arXiv:math/0508133
Abstract
We determine the structure of certain moduli spaces of ideal sheaves by generalizing an earlier result of the first author. As applications, we compute the (virtual) Hodge polynomials of these moduli space, and calculate the Donaldson-Thomas invariants of certain 3-folds with trivial canonical classes.
Added a reference to a recent paper of K. Behrend. 12 pages