| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10678380 | Applied Mathematics Letters | 2005 | 4 Pages |
Abstract
Given an integer function f, the problem is to find its best uniform approximation from a set K of integer-valued bounded functions. Under certain conditions on K, the best extremal (maximal or minimal) approximation is identified. Furthermore, the operator mapping f to its extremal best approximation is shown to be Lipschitzian with some constant C or optimal Lipschitzian having the smallest C among all such operators. The results are applied to approximation problems.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Vasant A. Ubhaya,