Natural -constellation families.
Nevanlinna Defect Relations for Singular Divisors.
Newton Polyhedra and Irreducibility.
Non-smoothable varieties.
Normal degenerations of the complex projective plane.
Normal projective degenerations of rational and ruled surfaces.
Normal surface singularities admitting contracting automorphisms
We show that a complex normal surface singularity admitting a contracting automorphism is necessarily quasihomogeneous. We also describe the geometry of a compact complex surface arising as the orbit space of such a contracting automorphism.
Note sur la théorie de surfaces réciproques
Nouvelles surfaces à noeuds dans IP3.