Issue no. 1 Table of Contents

An approach through orthogonal projections to the study of inhomogeneous or random media with linear response
Study of Dobrushin's critical coupling in rotator models
The group structure of supergravity
Sur les règles de sélection en spectroscopie moléculaire de vibration et de rotation
Anomalous terms in gauge theory : relevance of the structure group

Issue no. 2 Table of Contents

An explicit determination of the Petrov type N space-times on which the conformally invariant scalar wave equation satisfies Huygens' principle
Existence of the time evolution for Schrödinger operators with time dependent singular potentials
Compact manifold of coherent states invariant by semisimple Lie groups
On the quasi-classical limit of the total scattering cross-section in nonrelativistic quantum mechanics

Issue no. 3 Table of Contents

The pressure of the two dimensional Coulomb gas at low and intermediate temperatures
General relativistic celestial mechanics of binary systems. II. The post-newtonian timing formula
A quantum particle in a quadrupole radio-frequency trap
Itération des polynômes et propriétés d'orthogonalité
Hard bosons in one dimension
Addendum « Puits multiples pour l'opérateur de Dirac »

Issue no. 4 Table of Contents

Small random perturbations of infinite dimensional dynamical systems and nucleation theory
The Eikonal approximation and the asymptotics of the total scattering cross-section for the Schrödinger equation
Existence of an instanton singularity in ϕ 3 4 . Euclidean field theory