Kamal, Aref K. Finite dimensional Chebyshev subspaces of spaces of discontinuous function. (English) Zbl 1379.41026 Jaen J. Approx. 7, No. 1, 1-10 (2015). MSC: 41A50 41A65 × Cite Format Result Cite Review PDF
Kamal, Aref K. On copositive approximation in spaces of continuous functions. I: The alternation property of copositive approximation. (English) Zbl 1349.41048 Anal. Theory Appl. 31, No. 4, 354-372 (2015). MSC: 41A50 41A65 41A29 × Cite Format Result Cite Review PDF Full Text: DOI