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Over-iterates of Bernstein-Stancu operators. (English) Zbl 1150.41013

In this paper the authors obtain convergence results for over-iterates of generalized Bernstein–Stancu operators. They use the spectrum of the operators involved. Therefore it is possible to make global statements on \([0,1]\). This is different from a previous result by I. A. Rus [Studia Univ. Babes-Bolyai. Math. 47(4), 101–104 (2002)].

MSC:

41A36 Approximation by positive operators
47A75 Eigenvalue problems for linear operators
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[1] 1. Călugăreanu, G.: On operators of S.N. Bernstein. Spectra of operators. (Romanian) Gaz. Mat. Ser. A 71, 448–451 (1966)
[2] 2. Cooper, S., Waldron, S.: The eigenstructure of the Bernstein operator. J. Approx. Theory 105, 133–165 (2000) · Zbl 0963.41006
[3] 3. Gonska, H.: Quantitative Aussagen zur Approximation durch positive lineare Operatoren. Dissertation. Gesamthochschule Duisburg (1979) · Zbl 0548.41014
[4] 4. Gonska, H.H., Meier, J.: Quantitative theorems on approximation by Bernstein-Stancu operators. Calcolo 21, 317–335 (1984) · Zbl 0568.41021
[5] 5. Gonska, H., Kacsó, D., Piţul, P.: The degree of convergence of over-iterated positive linear operators. J. Appl. Funct. Anal. 1, 403–423 (2006) · Zbl 1099.41011
[6] 6. Kelisky, R.P., Rivlin, T.J.: Iterates of Bernstein polynomials. Pacific J. Math. 21, 511–520 (1967) · Zbl 0177.31302
[7] 7. Kemeny, J.G., Snell, J.L.: Finite Markov chains. New York: Springer 1976 · Zbl 0328.60035
[8] 8. Lupaş, A.: Die Folge der Betaoperatoren. Dissertation. Uni. Stuttgart 1972
[9] 9. Ostrovska, S.: q-Bernstein polynomials and their iterates. J. Approx. Theory 123, 232–255 (2003) · Zbl 1093.41013
[10] 10. Raşa, I., Vladislav, T.: Some properties of Bernstein and Stancu operators. In: Stancu, D.D. et al. (eds.): Approximation and optimization. Vol. 1. Transilvania Press: Cluj-Napoca 1997, pp. 345–350 · Zbl 0884.41016
[11] 11. Rus, I.A.: Iterates of Stancu operators, via contraction principle. Studia Univ. Babeş-Bolyai. Math. 47 (4), 101–104 (2002) · Zbl 1249.41020
[12] 12. Rus, I.A.: Iterates of Bernstein operators, via contraction principle. J. Math. Anal. Appl. 292, 259–261 (2004) · Zbl 1056.41004
[13] 13. Stancu, D.D.: Approximation of functions by a new class of linear polynomial operators, Rev. Roumaine Math. Pures Appl. 13, 1173–1194 (1968) · Zbl 0167.05001
[14] 14. Stancu, D.D.: Approximation of functions by means of some new classes of positive linear operators. In: Collatz, L., Meinardus, G. (eds.): Numerische Methoden der Approximationstheorie. Band 1. Basel: Birkhäuser 1972 pp. 187–203 · Zbl 0255.41016
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