Carbone, Antonio A note on some results on best approximation in locally convex spaces. (English) Zbl 1094.41018 Vikram Math. J. 24, 1-5 (2004). MSC: 41A65 47H10 54H25 PDF BibTeX XML Cite \textit{A. Carbone}, Vikram Math. J. 24, 1--5 (2004; Zbl 1094.41018) OpenURL
Cheney, E. W. Introduction to approximation theory. Reprint of the 2nd edition 1982. (English) Zbl 0912.41001 Providence, RI: AMS Chelsea Publishing. xii, 259 p. (1998). MSC: 41-04 41-02 PDF BibTeX XML Cite \textit{E. W. Cheney}, Introduction to approximation theory. Reprint of the 2nd edition 1982. Providence, RI: AMS Chelsea Publishing (1998; Zbl 0912.41001) OpenURL