Universal approximations of certain functionals in Banach spaces
P. Přikryl (1974)
Acta Universitatis Carolinae. Mathematica et Physica
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Universal approximations of certain functionals in Banach spaces
The Compact Approximation Property does not imply the Approximation Property
George Willis (1992)
Studia Mathematica
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It is shown how to construct, given a Banach space which does not have the approximation property, another Banach space which does not have the approximation property but which does have the compact approximation property.
Universally optimal approximation of functionals
Milan Práger (1979)
Aplikace matematiky
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A universal optimal in order approximation of a general functional in the space of continuous periodic functions is constructed and its fundamental properties and some generalizations are investigated. As an application the approximation of singular integrals is considered and illustrated by numerical results.
Optimal universal approximations of Fourier coefficients in spaces of continuous periodic functions
Petr Přikryl (1972)
Časopis pro pěstování matematiky
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