The main result in this paper is the characterization of all n-dimensional weak Chebyshev Z subspaces of C(Q) for which the metric projection has a continuous selection. It is also shown that if n ≥ 3 and PN has a continuous selection, then Q should be homeomorphic to a subset of R.
|Number of pages||22|
|Journal||Journal of Approximation Theory|
|Publication status||Published - Nov 1991|
ASJC Scopus subject areas
- Numerical Analysis
- Applied Mathematics