Pinkus, Allan M. On \(L^ 1\)-approximation. Paperback reprint of the hardback edition 1989. (English) Zbl 1144.41007 Cambridge Tracts in Mathematics 93. Cambridge: Cambridge University Press (ISBN 978-0-521-05769-1/pbk). x, 239 p. (2008). MSC: 41A65 41-02 PDFBibTeX XMLCite \textit{A. M. Pinkus}, On \(L^ 1\)-approximation. Paperback reprint of the hardback edition 1989. Cambridge: Cambridge University Press (2008; Zbl 1144.41007)
Gal, Sorin G. Shape-preserving approximation by real and complex polynomials. (English) Zbl 1154.41002 Basel: Birkhäuser (ISBN 978-0-8176-4702-5/hbk). xiii, 352 p. (2008). Reviewer: Alexander Tovstolis (Donetsk) MSC: 41-02 41A05 41A10 41A17 41A28 41A29 41A35 41A36 41A44 41A50 41A63 PDFBibTeX XMLCite \textit{S. G. Gal}, Shape-preserving approximation by real and complex polynomials. Basel: Birkhäuser (2008; Zbl 1154.41002)