Abstract
The genuine Bernstein–Durrmeyer operators have notable approximation properties, and many papers have been written on them. In this paper, we introduce a modified genuine Bernstein–Durrmeyer operators. Some approximation results, which include local approximation, error estimation in terms of the modulus of continuity and weighted approximation is obtained. Also, a quantitative Voronovskaya-type approximation will be studied. The convergence of these operators to certain functions is shown by illustrative graphics using MAPLE algorithms.
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References
T. Acar, A. Aral, I. Rasa, The new forms of Voronovskaya’s theorem in weighted spaces. Positivity 20(1), 25–40 (2016)
T. Acar, L.N. Mishra, V.N. Mishra, Simultaneous approximation for generalized Srivastava-Gupta operators. J. Funct. Spaces, Article ID 936308, 11 (2015)
A.M. Acu, I. Rasa, New estimates for the differences of positive linear operators. Numer. Algorithms 73(3), 775–789 (2016)
A.M. Acu, Stancu-Schurer-Kantorovich operators based on q-integers. Appl. Math. Comput. 259, 896–907 (2015)
P.N. Agrawal, A.M. Acu, M. Sidharth, Approximation degree of a Kantorovich variant of Stancu operators based on Polya–Eggenberger distribution, Revista de la Real Academia de Ciencias Exactas, Fsicas y Naturales. Serie A. Matemticas (2017), https://doi.org/10.1007/s13398-017-0461-0
H. Berens, Y. Xu, On Bernstein-Durrmeyer polynomials with Jacobi weights, in Approximation Theory and Functional Analysis ed. by C.K. Chui (Academic, Boston, 1991), pp. 25–46
H. Berens, Y. Xu, On Bernstein-Durrmeyer polynomials with Jacobi weights: The cases p = 1 and p = 1, in Approximation, Interpolation and Summation (Israel Mathematical Conference Proceedings, 4, ed. by S. Baron, D. Leviatan) (BarIlan University, Ramat Gan, 1991), pp. 51–62
S.N. Bernstein, Démonstration du théorème de Weierstrass fondée sur le calcul des probabilités. Communications de la Société Mathematique de Kharkov 13, 1–2 (1913)
Q.-B. Cai, B.-Y. Lian, G. Zhou, Approximation properties of \(\lambda \)-Bernstein operators. J. Inequalities Appl. 2018, 61, (2018), https://doi.org/10.1186/s13660-018-1653-7
W. Chen, On the modified Bernstein-Durrmeyer operator, in Report of the Fifth Chinese Conference on Approximation Theory (Zhen Zhou, China, 1987)
Z. Finta, Remark on Voronovskaja theorem for \(q\)-Bernstein operators. Stud. Univ. Babeş-Bolyai Math. 56, 335–339 (2011)
H. Gonska, R. Păltănea, Simultaneous approximation by a class of Bernstein-Durrmeyer operators preserving linear functions. Czechoslovak Math. J. 60(135), 783–799 (2010)
H. Gonska, R. Păltănea, Quantitative convergence theorems for a class of Bernstein- Durrmeyer operators preserving linear functions. Ukrainian Math. J. 62, 913–922 (2010)
T.N.T. Goodman, A. Sharma, A modified Bernstein-Schoenberg operator, in Proceedings of the Conference Constructive Theory of Functions, Varna 1987, ed. by Bl. Sendov et al. (Bulgarian Academy of Sciences Publishing House, Sofia, 1988), pp. 166–173
V. Gupta, A.M. Acu, On Baskakov-Szasz-Mirakyan-type operators preserving exponential type functions. Positivity, https://doi.org/10.1007/s11117-018-0553-x
A.M. Acu, V. Gupta, Direct results for certain summation-integral type Baskakov-Szasz operators. Results Math. 72, 1161–1180 (2017)
V. Gupta, A.M. Acu, D.F. Sofonea, Approximation Baskakov type Polya-Durrmeyer operators. Appl. Math. Comput. 294(1), 318–331 (2017)
A. Kajla, A.M. Acu, P.N. Agrawal, BaskakovSzsz-type operators based on inverse Pólya-Eggenberger distribution. Ann. Funct. Anal. 8(1), 106–123 (2017)
A. Lupaş, Die Folge der Betaoperatoren, Dissertation, Universität Stuttgart (1972)
T. Neer, A.M. Acu, P.N. Agrawal, Bezier variant of genuine-Durrmeyer type operators based on Polya distribution. Carpathian J. Math. 33(1), 73–86 (2017)
R. Păltănea, Sur un opérateur polynomial defini sur l’ensemble des fonctions intégrables, in Itinerant Seminar on Functional Equations, Approximation and Convexity (Cluj-Napoca, 1983), pp. 101–106
R. Păltănea, Approximation Theory Using positive Linear Operators (Birkhauser, Boston, 2004)
R. Păltănea, A class of Durrmeyer type operators preserving linear functions. Ann. Tiberiu Popoviciu Sem. Funct. Equat. Approxim. Convex. (Cluj-Napoca) 5, 109–117 (2007)
Acknowledgements
The work was financed from Lucian Blaga University of Sibiu research grants LBUS-IRG-2017-03.
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Acu, AM. (2018). Convergence Properties of Genuine Bernstein–Durrmeyer Operators. In: Mohiuddine, S., Acar, T. (eds) Advances in Summability and Approximation Theory. Springer, Singapore. https://doi.org/10.1007/978-981-13-3077-3_5
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DOI: https://doi.org/10.1007/978-981-13-3077-3_5
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