This is the sixth annual volume of papers based on the outstanding lectures given at the Séminaire de Théorie des Nombres de Paris. The results presented in 1985-86 by an international group of mathematicians reflect the most recent work in many areas of number theory.

This is the sixth annual volume of papers based on the outstanding lectures given at the Séminaire de Théorie des Nombres de Paris. The results presented in 1985-86 by an international group of mathematicians reflect the most recent work in many areas of number theory.