Issue no. 1-2 Table of Contents

Properties of normal boundary problems for elliptic even-order systems
Two point boundary value problems for operational differential equations
A simple proof of the mean fourth power estimate for ζ(1 2+it) and L(1 2+it,χ)
Exact solutions of the magneto-fluid dynamics : a contribution
Exceptional sets with respect to Lebesgue differentiation of functions in Sobolev spaces
Linear second order differential equations with discontinuous coefficients in Hilbert spaces
A Fubini-type theorem for finitely additive measure spaces

Issue no. 3-4 Table of Contents

Multiapplications à retraction finie
Inégalité en norme L p pour les solutions de système aux dérivées partielles de type parabolique
Existence of optimal controls for control systems governed by nonlinear partial differential equations
Équations d'évolution paraboliques fortement non linéaires
Quelques propriétés des opérateurs maximaux associés à une classe d'opérateurs elliptiques et dégénérés
A degree for a class of acyclic-valued vector fields in Banach spaces
A boundary value problem for quasilinear hyperbolic systems in the Schauder canonic form