On glueing curves on surfaces and zero cycles
The structure of the group of a surface with prescribed singularities is investigated.
On the calculation of some differential galois groups.
On the Growth of Cohomology Classes on Smooth Affine Varieties.
On the hard Lefschetz theorem in intersection homology for complex varieties with isolated singularities.
On the homology of algebraic varieties over real closed fields.
On the motive of an algebraic surface.
On the nonexistence of certain morphisms from Grassmannian to Grassmannian in characteristic 0.