Direct and converse results for stancu operator

Periodica Mathematica Hungarica

Volumn 44, Issue 1, 2002, Pages 1-6

  Finta, Zoltán ^a  

^a BABE BOLYAI UNIVERSITY   (Romania)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33750056430     PISSN: 00315303     EISSN: 15882829     Source Type: Journal    
DOI: 10.1023/A:1014931000550     Document Type: Article

References (7)

1. H. BERENS AND G. G. LORENTZ, Inverse theorems for Bernstein polynomials, Indiana Univ. Math. J. 21 (1972), 693-708.
2. R. A. DEVORE AND G. G. LORENTZ, Constructive Approximation, Springer Verlag, Berlin-Heidelberg-New York-London, 1993.
3. Z. DITZIAN AND V. TOTIK, Moduli of Smoothness, Springer Verlag, Berlin-Heidel-berg-New York-London, 1987.
4. H. H. GONSKA AND J. MEIER, Quantitative theorems on approximation by Bernstein-Stancu operators, Calcolo 21 (4) (1984), 317-335.
5. H. B. KNOOP AND X. L. ZHOU, The lower estimate for linear positive operators (II), Results in Mathematics 25 (1994), 315-330.
6. D. D. STANCU, Approximation of functions by a new class of linear polynomial operators, Rev. Roumaine Math. Pures Appl. XIII (8) (1968), 1173-1194.
7. V. TOTIK, Approximation by Bernstein polynomials, Amer. J. Math. 116 (4) (1994), 995-1018.