Chebyshev approximation of multivariable functions by the exponential expression (Q2044035)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: Chebyshev approximation of multivariable functions by the exponential expression |
scientific article; zbMATH DE number 7378081
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Chebyshev approximation of multivariable functions by the exponential expression |
scientific article; zbMATH DE number 7378081 |
Statements
Chebyshev approximation of multivariable functions by the exponential expression (English)
0 references
4 August 2021
0 references
In multivariate functional approximation, Chebyshev methods of approaching this problem are of particular value. In this article, the authors construct approximations by approximating the logarithm of the approximant first, and then taking exponentials. The approximations are carried out by a weighted least-squares (best) approximation and convergence results are offered. There are considerations of particular cases up to three space dimensions.
0 references
Chebyshev approximation by exponential expression
0 references
multivariable functions
0 references
mean-power approximation
0 references
least squares method
0 references
variable weight function
0 references
