Approximation relative to an ultra function
Tulsi Dass Narang (1986)
Archivum Mathematicum
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Displaying similar documents to “Suitable norms for simultaneous approximation.”
Approximation relative to an ultra function
On an approximation of function and its derivatives.
J. Prasad (1972)
Publications de l'Institut Mathématique [Elektronische Ressource]
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Approximation in metric linear spaces
Günter Albinus (1979)
Banach Center Publications
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Functional characterization of best and good approximation in normed product spaces.
Carlos Benítez, Manuel Fernández (1987)
Extracta Mathematicae
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In [6], C. Dierick deals with a small but important collection of norms in the product of a finite number of normed linear spaces and he extends to such products some results on functional characterization of best approximations. In this paper we establish the widest scope in which the mentioned results remain valid.
Completeness and approximation
P. L. Papini (1987)
Matematički Vesnik
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