Issue no. 1 Table of Contents

The nonrelativistic limit of the nonlinear Dirac equation
Contingent solutions to the center manifold equation
Sur une généralisation de l'inégalité de Wirtinger
Régularité de la solution d'un problème variationnel
Integral representation of nonconvex functionals defined on measures

Issue no. 2 Table of Contents

Fibrés dynamiques. Entropie et dimension
Gain of regularity for equations of KdV type
Closed orbits of fixed energy for a class of N-body problems
Concentration of solutions to elliptic equations with critical nonlinearity
Resolution of the Cauchy problem for several hyperbolic systems arising in chemical engineering

Issue no. 3 Table of Contents

A nonexistence result for a nonlinear equation involving critical Sobolev exponent
Remarks on W 1,p -quasiconvexity, interpenetration of matter, and function spaces for elasticity
On nonhomogeneous elliptic equations involving critical Sobolev exponent
Infinite cup length in free loop spaces with an application to a problem of the N-body type
Structure de l'ensemble des équilibres d'une économie productive
Addendum to closed orbits of fixed energy for a class of N-body problems

Issue no. 4 Table of Contents

Nonlinear symmetric positive systems
Global analysis for a two-dimensional elliptic eigenvalue problem with the exponential nonlinearity
Homogenization of almost periodic monotone operators
The large deformation of nonlinearly elastic shells in axisymmetric flows
Radially symmetric solutions of a class of problems of the calculus of variations without convexity assumptions

Issue no. 5 Table of Contents

Front propagation for reaction-diffusion equations of bistable type
Travelling fronts in cylinders
Bounded approximants to monotone operators on Banach spaces

Issue no. 6 Table of Contents

Multiplicity of periodic solution with prescribed energy to singular dynamical systems
The Dirichlet problem for the equation of prescribed mean curvature
Singular minimisers in the calculus of variations : a degenerate form of cavitation
On nonviscous compressible fluids in a time-dependent domain