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Wydawnictwa / Czasopisma IMPAN / Annales Polonici Mathematici / Wszystkie zeszyty

Jan Stochel, F. Szafraniec Annales Polonici Mathematici 66 (1997), 223-238 DOI: 10.4064/ap-66-1-223-238

The following two questions as well as their relationship are studied: (i) Is a closed linear operator in a Banach space bounded if its $