Sommaire

A regularity theorem for linear second order elliptic divergence equations
A note on algebraic differential equations whose coefficients are entire functions of finite order
Complex characteristic coordinates and tangential Cauchy-Riemann equations
E. E. Levi convexity and the Hans Lewy problem. Part I : reduction to vanishing theorems
Dissipative sets and nonlinear perturbated equations in Banach spaces
On the Hölder continuity of solutions of second order elliptic equations in two variables
On the reflections in bounded symmetric domains
Superfici di discontinuità in fisica dei plasmi
Existence and approximation of weak solutions of abstract differential equations
Zur Homologie projektiv algebraischer Varietäten
Means of vector-valued functions and projections which commute with the action of a group
Equazioni ellittiche non lineari con ostacoli sottili. Applicazioni allo studio dei punti regolari
Weighted approximation and slice products of modules of continuous functions