Sommaire du Fascicule no. 1

Commensurability classes and volumes of hyperbolic 3-manifolds
A bound on the geometric genus of projective varieties
Compacité par compensation : condition nécessaire et suffisante de continuité faible sous une hypothèse de rang constant
Classifying relative principal fibrations with loop space fibers
π-omomorfismi e loro rappresentazione
One attempt to the K3 modular function - II

Sommaire du Fascicule no. 2

Some estimates of solutions to Monge-Ampère type equations in dimension two
A classification of strictly pseudoconcave homogeneous manifolds
Global existence for the Hamilton-Jacobi equations in Hilbert space
Differentiability and partial Hölder continuity of the solutions of non-linear elliptic systems of order 2m with quadratic growth
Stability of the polynomial hull of T 2
On the barotropic motion of compressible perfect fluids

Sommaire du Fascicule no. 3

On the a.e. convergence of convolution integrals and related problems
On the absence of Poincaré lemma in tangential Cauchy-Riemann complexes
L'unirazionalità della varietà dei moduli delle curve di genere dodici
Problème d'évolution parabolique pour une classe d'opérateurs elliptiques et dégénérés
Steiner's formula for the volume of a parallel hypersurface in a riemannian manifold
Generation of analytic semigroups by elliptic operators of second order in Hölder spaces

Sommaire du Fascicule no. 4

Internal waves in fluids with rapidly varying density
A class of pseudo differential operators with multiple non-involutive characteristics
Remarks about Signorini's problem in linear elasticity
On nontrivial solutions of a semilinear wave equation
Continuity of solutions of the porous media equation