Journal of Function Spaces (Jan 2021)

Approximation Properties of p,q-Szász-Mirakjan-Durrmeyer Operators

  • Zhi-Peng Lin,
  • Wen-Tao Cheng,
  • Xiao-Wei Xu

DOI
https://doi.org/10.1155/2021/6649570
Journal volume & issue
Vol. 2021

Abstract

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In this article, we introduce a new Durrmeyer-type generalization of p,q-Szász-Mirakjan operators using the p,q-gamma function of the second kind. The moments and central moments are obtained. Then, the Voronovskaja-type asymptotic formula is investigated and point-wise estimates of these operators are studied. Also, some local approximation properties of these operators are investigated by means of modulus of continuity and Peetre K-functional. Finally, the rate of convergence and weighted approximation of these operators are presented.