Two Korovkin-type theorems in multivariate approximation (Q958849)
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scientific article; zbMATH DE number 5379939
| Language | Label | Description | Also known as |
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| English | Two Korovkin-type theorems in multivariate approximation |
scientific article; zbMATH DE number 5379939 |
Statements
Two Korovkin-type theorems in multivariate approximation (English)
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9 December 2008
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Two Korovkin-type theorems [\textit{F. Altomare} and \textit{M. Campiti}, Korovkin-type Approximation Theory and its applications. de Gruyter Studies in Mathematics. 17. (Berlin): Walter de Gruyter. (1994; Zbl 0924.41001)] in multivariate approximation in which the limit of the sequence of operators is not necessarily the identity have been proved. One of these is an analogue of a result proved in \textit{H. Wang} [J. Approximation Theory 132, No. 2, 258--264 (2005; Zbl 1118.41015)].
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Korovkin-type theorems
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Positive linear operators
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Convexity
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