Issue no. 1 Table of Contents

High order corrections to the time-independent Born-Oppenheimer approximation. - I. Smooth potentials
A phase cell approach to Yang-Mills theory. - VI. Non-abelian lattice-continuum duality
Time-decay of scattering solutions and classical trajectories
The Foldy-Wouthuysen transformation in the two-particle case
The quantum stability problem for time-periodic perturbations of the harmonic oscillator
Rigorous numerical stability estimates for the existence of KAM tori in a forced pendulum

Issue no. 2 Table of Contents

Concerning the condition of additivity in quantum field theory
The electrostatic energy of a lattice of point charges
Bounds on many-body resonances
A geometric setting for classical molecular dynamics

Issue no. 3 Table of Contents

Conformal invariance and time decay for non linear wave equations. I
Conformal invariance and time decay for non linear wave equations. II
“Geometry” of spin 3 gauge theories
On the stability of solitary waves for classical scalar fields

Issue no. 4 Table of Contents

An explicit determination of the space-times on which the conformally invariant scalar wave equation satisfies Huygens' principle. - Part II : Petrov type D space-times
A-cohomologie et opérateurs de récursion
Configuration space properties of the S-matrix and time delay in potential scattering
Existence des opérateurs d'ondes pour les systèmes hyperboliques avec un potentiel périodique en temps
Arrival time observables in quantum mechanics
Erratum : “The quantum stability problem for time-periodic perturbations of the harmonic oscillator”