Sharp estimates of approximation in \(L_ p\) by functions of the form \(\phi (x)+\psi (y)\) (Q921325)
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: Sharp estimates of approximation in \(L_ p\) by functions of the form \(\phi (x)+\psi (y)\) |
scientific article; zbMATH DE number 4165587
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Sharp estimates of approximation in \(L_ p\) by functions of the form \(\phi (x)+\psi (y)\) |
scientific article; zbMATH DE number 4165587 |
Statements
Sharp estimates of approximation in \(L_ p\) by functions of the form \(\phi (x)+\psi (y)\) (English)
0 references
1989
0 references
The author obtains sharp estimates for the approximation of a periodic bivariate function by sums of periodic functions of one variable in the \(L_ p\)-norm. The estimates are in terms of the mixed modulus of continuity of the bivariate function.
0 references
sharp estimates
0 references
periodic bivariate function
0 references
mixed modulus of continuity
0 references
