Abstract
We introduce and study new multivariate and univariate Aldaz–Kounchev–Render type operators including their convergence and the asymptotic expansions. We solve also in the positive a conjecture from the very recent paper of Acu A. M., De Marchi S., Rasa I. (Result Math 78(1):21, 2023).
Similar content being viewed by others
Data Availability Statement
No new data were created during the study.
References
Acu, A.M., Gonska, H., Heilmann, M.: Remarks on a Bernstein-type operator of Aldaz, Kounchev and Render. J. Numer. Anal. Approx. Theor. 50(1), 3–11 (2021)
Acu, A.M., De Marchi, S., Raşa, I.: Aldaz-Kounchev-Render operators and their approximation properties. Result Math. 78(1), 21 (2023)
Aldaz, J.M., Kounchev, O., Render, H.: Shape preserving properties of generalized Bernstein operators for extended Chebyshev systems. Numer. Math. 114, 1–25 (2009)
Altomare, F., Campiti, M.: Korovkin-Type Approximation Theory and its Application, vol. 17. de Gruyter Studies in Mathematics, Berlin, New York (1994)
Altomare, F.: On positive linear functionals and operators associated with generalized means. J. Math. Anal. Appl. 502(2), 20 (2021)
Birou, M.M.: A proof of a conjecture about the asymptotic formula of a Bernstein type operator. Result. Math. 72(3), 1129–1138 (2017)
Cardenas-Morales, D., Garrancho, P., Raşa, I.: Asymptotic formulae via a Korovkin-type result, Abstr. Appl. Anal. Article ID 217464, p. 12 (2012)
Defant, A., Floret, K.: Tensor norms and operator ideals, North-Holland, Math. Studies, p. 176, (1993)
Korovkin, P.P.: Linear operators and approximation theory, (in Russian), Moskva, (1959)
Lorentz, G.G.: Bernstein Polynomials. Chelsea Publishing, A. M. S (1997)
Niculescu, C.P.: An overview of absolute continuity and its applications. In: Internat. Ser. Numer. Math., 157, pp. 201–214, Birkhauser, Basel
Popa, D.: Voronovskaja type results and their applications. Result. Math. 77(1), 15–27 (2022)
Ryan, R.A.: Introduction to Tensor Products of Banach Spaces, Springer Monographs in Mathematics. Springer, London (2002)
Xiang, J.X.: Voronovskaja-type theorem for modified Bernstein operators. J. Math. Anal. Appl. 495(2), 12 (2021)
Acknowledgements
We would like to express our gratitude to the reviewer for his/her very careful reading of the manuscript and many valuable and constructive comments that have improved the final version of the paper.
Funding
The author declare that no funds, grants, or other support were received during the preparation of this manuscript
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The author declare that they have no conflict of interests.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Popa , D. New Multivariate and Univariate Aldaz–Kounchev–Render Type Operators. Results Math 79, 71 (2024). https://doi.org/10.1007/s00025-023-02082-3
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00025-023-02082-3
Keywords
- Univariate and multivariate positive linear operators
- asymptotic evaluations for univariate and multivariate positive operators
- Bernstein type asymptotic evaluations
- Aldaz-Kounchev-Render type operators