The Betti numbers of the Hilbert scheme of ponts on a smooth projective surface.
The Betti numbers of the moduli space of stable sheaves of rank 2 on a ruled surface.
The Betti numbers of the moduli space of stable sheaves of rank2 on P2.
The connectedness of degeneracy loci
The connectedness of symmetric degeneracy loci: odd ranks. Appendix to "The connectedness of degeneracy loci" by L. W. Tu
The degrees of certain strata of the dual variety
The Euler characteristic of the moduli space of curves.
The Euler characteristic of varieties realized as the complete intersection of toric hypersurfaces.
The Euler series of restricted Chow varieties
The fundamental group at infinity of affine surfaces.
The Hilbert schemes of degree three curves
The Irregularities of Hirzebruch's Examples of Surfaces of General Type with c21= 3c2 .
The Lefschetz number of an involution on the space of classes of positive definite quadratic forms.
The topology of conjugate varieties.
The topology of rational points.
The variety of an indecomposable module is connected.
Théorème de Torelli générique pour les intersections complètes de trois quadriques de dimension paire.
Théorèmes de Lefschetz pour les lieux de dégénérescence
Thom's lemma in real geometry
Topological Invariants of Real Algebraic Curves