Pluricanonical maps for threefolds of general type
In this paper we will prove that for a threefold of general type and large volume the second plurigenera is positive and the fifth canonical map is birational.
Points périodiques des automorphismes affines.
Polynomial cycles in certain local domains
1. Let R be a domain and f ∈ R[X] a polynomial. A k-tuple of distinct elements of R is called a cycle of f if for i=0,1,...,k-2 and . The number k is called the length of the cycle. A tuple is a cycle in R if it is a cycle for some f ∈ R[X]. It has been shown in [1] that if R is the ring of all algebraic integers in a finite extension K of the rationals, then the possible lengths of cycles of R-polynomials are bounded by the number , depending only on the degree N of K. In this note we consider...
Polynomial Cycles in Finitely Generated Domains.
Polynomial mappings form products of algebraic sets into spheres.
Polynomial-time computation of the degree of a dominant morphism in zero characteristic. II.
Principal polarizations of Prym-Tjurin varieties
Projective homogeneous varieties birational to quadrics.