scientific article; zbMATH DE number 3217133

zbMath0134.04702MaRDI QIDQ5344277

Yuri Petrovich Ofman

Publication date: 1961

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

approximation and series expansion

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Extremal properties and two-sided estimates in approximation by sums of functions of lesser number of variables ⋮ On approximation of functions of two variables by sums of the form \(\varphi (x) + \psi (y)\) in \(L_ p\) spaces \((1\leq p\leq\infty )\) ⋮ On existence of a best uniform approximation of a function in two variables by the sums \(\varphi (x)+ \psi (y)\) ⋮ Approximate complexity and functional representation ⋮ Approximation error of single hidden layer neural networks with fixed weights ⋮ Continuous sums of ridge functions on a convex body and the class VMO ⋮ On some properties of smooth sums of ridge functions ⋮ A Chebyshev-type theorem characterizing best approximation of a continuous function by elements of the sum of two algebras ⋮ Some problems in the theory of ridge functions

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