Abstract
Bernstein-type inequalities play a very important role in the theory of approximation. During last few decades, a number of operators have been identified, which preserve such type of inequalities between polynomials. In this paper, we consider a more general operator belonging to the family \({\mathcal {B}}_n\) and establish some inequalities preserved by it, which generalize or refine some of the results proved earlier.
Similar content being viewed by others
Data Availability Statements
This research article is theory based and hence no data sets were generated or analyzed during the current study. However some previously proven results were either generalized or refined and a proper referencing is done to find and cite those articles.
References
Aziz, A., Dawood, Q.M.: Inequalities for a polynomial and its derivative. J. Approx. Theory. 5(3), 155–162 (1988)
Rahman, Q.I., Schmeisser, G.: Les inégalités de Markoff et de Bernstein. Séminaire de Mathématiques Supérieures, No. 86 (Ete 1981), Presses de l’Universit é de Montréal, Montreal (1983), 173 pp
Rahman, Q.I., Schmeisser, G.: Analytic Theory of Polynomials. Oxford University Press, Oxford (2002)
Rather, N.A., Dar, I., Gulzar, S.: On the zeros of certain composite polynomials and an operator preserving inequalities. Ramanujan J. 54, 605–612 (2021)
Author information
Authors and Affiliations
Corresponding author
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
Wani, Z.M., Shah, W.M. Inequalities for a class of \({\mathcal {B}}_n\)-operators. Complex Anal Synerg 10, 3 (2024). https://doi.org/10.1007/s40627-023-00129-3
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s40627-023-00129-3