The cohomology of an open subspace of a Stein spaces.
The Hartogs-type extension theorem for meromorphic maps intor compact Kähler manifolds.
The Levi problem in Stein spaces.
The Levi Problem on Complex Spaces with Singularities.
The local boundary regularity of the solution of the -equation
The Serre Problem on Riemann Surfaces.
The topology of Stein CR manifolds and the Lefschetz theorem
Necessary topological conditions are given for the closed CR embedding of a CR manifold into a Stein manifold or into a complex projective space.
The union problem on complex manifolds.
Topologie symplectique, convexité holomorphe et structures de contact
Tubenumgebungen Steinscher Räume.
Two Dimensional Complex Manifold with Vanishing Cohomology Set.