Best approximation of functions of two variables by functions of the form 𝜑(𝑥)+𝜓(𝑦)
- 1 January 1965
- other
- Published by American Mathematical Society (AMS) in American Mathematical Society Translations: Series 2
- Vol. 44, 12-28
- https://doi.org/10.1090/trans2/044/02
Abstract
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