Issue no. 1 Table of Contents

An approach through orthogonal projections to the study of inhomogeneous or random media with linear response
p. 1-28
Study of Dobrushin's critical coupling in rotator models
p. 29-38
The group structure of supergravity
p. 39-89
Sur les règles de sélection en spectroscopie moléculaire de vibration et de rotation
p. 91-101
Anomalous terms in gauge theory : relevance of the structure group
p. 103-114

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
p. 115-153
Existence of the time evolution for Schrödinger operators with time dependent singular potentials
p. 155-171
Compact manifold of coherent states invariant by semisimple Lie groups
p. 173-193
On the quasi-classical limit of the total scattering cross-section in nonrelativistic quantum mechanics
p. 195-210

Issue no. 3 Table of Contents

The pressure of the two dimensional Coulomb gas at low and intermediate temperatures
p. 211-261
General relativistic celestial mechanics of binary systems. II. The post-newtonian timing formula
p. 263-292
A quantum particle in a quadrupole radio-frequency trap
p. 293-314
Itération des polynômes et propriétés d'orthogonalité
p. 315-325
Hard bosons in one dimension
p. 327-340
Addendum « Puits multiples pour l'opérateur de Dirac »
p. 341

Issue no. 4 Table of Contents

Small random perturbations of infinite dimensional dynamical systems and nucleation theory
p. 343-396
The Eikonal approximation and the asymptotics of the total scattering cross-section for the Schrödinger equation
p. 397-425
Existence of an instanton singularity in ϕ 3 4 . Euclidean field theory
p. 427-442