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The Characterization of the Derivatives for Linear Combinations of Post–Widder Operators inLp

✍ Scribed by Song Li; Ren Tai Wang

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
131 KB
Volume
97
Category
Article
ISSN
0021-9045

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✦ Synopsis

The aim of the paper is to characterize the global rate of approximation of derivatives f (l) through corresponding derivatives of linear combinations of Post Widder operators in an appropriate weighted L p -metric using a weighted Ditzian and Totik modulus of smoothness, and also to characterize derivatives of these operators in Besov spaces of Ditzian Totik type.

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