Über eine Algebra ,,nicht normaler" Wiener-Hopf-Operatoren. I.
Über eine Algebra ,,nicht normaler'4 Wiener-Hopf-Operatoren. II.
Un altro modo di costruire la serie di Fourier delle distribuzioni di una variabile quasi periodiche
Una representación del espacio Cok (Ω,E).
Universal zero solutions of linear partial differential operators
A generalized approach to several universality results is given by replacing holomorphic or harmonic functions by zero solutions of arbitrary linear partial differential operators. Instead of the approximation theorems of Runge and others, we use an approximation theorem of Hörmander.