Fichera, Gaetano:
On the compactness of the base operator in the theory of intermediate problems
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Serie 8 41 (1966), fasc. n.1-2, p. 3-7, (English)
pdf, djvu. | MR 0212603 | Zbl 0192.23006
Sunto
Si prova un teorema relativo a particolari operatori di base non compatti.
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Con il contributo del Ministero per i Beni e le Attività Culturali