The approximation of Sobolev classes of functions by sums of products of functions of fewer variables

zbMATH Open0709.46507MaRDI QIDQ921482

M.-B. A. Babaev

Publication date: 1989

Published in: Proceedings of the Steklov Institute of Mathematics (Search for Journal in Brave)

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Approximation by other special function classes (41A30)

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