Über ableitungsfreie Schranken für Quadraturfehler. II. Ergänzungen und Möglichkeiten zur Verbesserung .
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G. HÄMMERLIN (1965)
Numerische Mathematik
Ivo Babuška (1966)
Aplikace matematiky
Helmut Brass (1978)
Aequationes mathematicae
P. Chenin (1979)
Numerische Mathematik
Santi, Elisabetta (2000)
Portugaliae Mathematica
Milan Práger (1979)
Aplikace matematiky
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.
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