Über die Approximation von linearen Glechungen zweiter Art und Eigenwertproblemen in Banach-Räumen.
Über die Konvergenzgeschwindigkeit projektiver Verfahren. II.
Un problema ai limiti per un'equazione astratta del secondo ordine
Une majoration sous-exponentielle pour la convergence de l'entropie des chaînes de Markov à trou spectral
Un'estensione del teorema sulle suriezioni fra spazi di Fréchet. Qualche sua applicazione
Universality of the best determined terms method
The properties are studied of the best determined terms method with respect to an a priori decomposition . The universal approximation to the normal solution of the first kind Fredholm integral equation is found.