Abdelaziz Rhandi (1997)
Studia Mathematica
Similarity:
Using extrapolation spaces introduced by Da Prato-Grisvard and Nagel we prove a non-autonomous perturbation theorem for Hille-Yosida operators. The abstract result is applied to non-autonomous retarded partial differential equations.
J. Alvarez (1989)
Studia Mathematica
Similarity:
Albrecht Pietsch (1990)
Studia Mathematica
Similarity:
Vlastimil Pták (1979)
Studia Mathematica
Similarity:
J. Kisyński (1972)
Studia Mathematica
Similarity:
Graham Allan, Allan Sinclair (1976)
Studia Mathematica
Similarity:
Rosanna Villella Bressan (1974)
Rendiconti del Seminario Matematico della Università di Padova
Similarity:
C. Read (2000)
Studia Mathematica
Similarity:
There has been a considerable search for radical, amenable Banach algebras. Noncommutative examples were finally found by Volker Runde [R]; here we present the first commutative examples. Centrally placed within the construction, the reader may be pleased to notice a reprise of the undergraduate argument that shows that a normed space with totally bounded unit ball is finite-dimensional; we use the same idea (approximate the norm 1 vector x within distance η by a “good” vector ; then...
Barnabas Garay (1990)
Studia Mathematica
Similarity:
V. Müller (1982)
Studia Mathematica
Similarity:
G. Emmanuele (1993)
Revista Matemática de la Universidad Complutense de Madrid
Similarity:
We show that a Banach space constructed by Bourgain-Delbaen in 1980 answers a question put by Feder in 1982 about spaces of compact operators.