The Ramification Divisors for Branched Coverings of IP nk.
The scheme of connected components of the Néron model of an algebraic torus.
The Semigroup of a Singular Point of a Curve with Two Equisingular Branches.
The semigroup of values of acurve singularity with several branches.
The set of points at which a polynomial map is not proper
We describe the set of points over which a dominant polynomial map is not a local analytic covering. We show that this set is either empty or it is a uniruled hypersurface of degree bounded by .
The Signature of Milnor Fibres and Duality Theorem for Strongly Pseudoconvex Manifolds.
The sixtieth anniversary of the Jacobian Conjecture: a new approach
We investigate an approach of Bass to study the Jacobian Conjecture via the degree of the inverse of a polynomial automorphism over an arbitrary ℚ-algebra.
The space of morphisms on projective space
The Stable Adjunction Map on Gorenstein Varieties.
The structure of Gauss-like maps
The tame automorphism group of an affine quadric threefold acting on a square complex
We study the group of tame automorphisms of a smooth affine -dimensional quadric, which we can view as the underlying variety of . We construct a square complex on which the group admits a natural cocompact action, and we prove that the complex is and hyperbolic. We propose two applications of this construction: We show that any finite subgroup in is linearizable, and that satisfies the Tits alternative.
The tame fundamental group of an abelian variety and integral points
The Tangent Surface of a rational Algebraic Space Curve.
The topological nature of algebraic contractions
The use of Schubert polynomials in SYMCHAR.
Théorème de Riemann-Roch par désingularisation
Théorèmes de finitude en géométrie analytique
Theorems of factorizations for birational morphisms
Théorie différentielle du contact maximal en inégale caractéristique
Thom-Boardman singularities and monoidal transforms