Approximation properties of q-Baskakov operators

Zoltán Finta; Vijay Gupta

Open Mathematics (2010)

  • Volume: 8, Issue: 1, page 199-211
  • ISSN: 2391-5455

Abstract

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We establish direct estimates for the q-Baskakov operator introduced by Aral and Gupta in [2], using the second order Ditzian-Totik modulus of smoothness. Furthermore, we define and study the limit q-Baskakov operator.

How to cite

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Zoltán Finta, and Vijay Gupta. "Approximation properties of q-Baskakov operators." Open Mathematics 8.1 (2010): 199-211. <http://eudml.org/doc/269602>.

@article{ZoltánFinta2010,
abstract = {We establish direct estimates for the q-Baskakov operator introduced by Aral and Gupta in [2], using the second order Ditzian-Totik modulus of smoothness. Furthermore, we define and study the limit q-Baskakov operator.},
author = {Zoltán Finta, Vijay Gupta},
journal = {Open Mathematics},
keywords = {q-Baskakov operator; Ditzian-Totik modulus of smoothness; K-functional; -Baskakov operator; -functional},
language = {eng},
number = {1},
pages = {199-211},
title = {Approximation properties of q-Baskakov operators},
url = {http://eudml.org/doc/269602},
volume = {8},
year = {2010},
}

TY - JOUR
AU - Zoltán Finta
AU - Vijay Gupta
TI - Approximation properties of q-Baskakov operators
JO - Open Mathematics
PY - 2010
VL - 8
IS - 1
SP - 199
EP - 211
AB - We establish direct estimates for the q-Baskakov operator introduced by Aral and Gupta in [2], using the second order Ditzian-Totik modulus of smoothness. Furthermore, we define and study the limit q-Baskakov operator.
LA - eng
KW - q-Baskakov operator; Ditzian-Totik modulus of smoothness; K-functional; -Baskakov operator; -functional
UR - http://eudml.org/doc/269602
ER -

References

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  1. [1] Andrews G. E., Askey R., Roy R., Special functions, Cambridge Univ. Press, Cambridge, 1999 Zbl0920.33001
  2. [2] Aral A., Gupta V., Generalized q-Baskakov operators, preprint 
  3. [3] Baskakov V. A., An example of sequence of linear positive operators in the space of continuous functions, Dokl. Akad. Nauk. SSSR, 1957, 113, 249–251 Zbl0080.05201
  4. [4] Ditzian Z., Totik V., Moduli of smoothness, Springer, Berlin, 1987 Zbl0666.41001
  5. [5] Phillips G. M., Interpolation and approximation by polynomials, CMS Books in Mathematics, Vol. 14, Springer, Berlin, 2003 Zbl1023.41002
  6. [6] Wang H., Meng F., The rate of convergence of q-Bernstein polynomials for 0 < q < 1, J. Approx. Theory, 2005, 136, 151–158 http://dx.doi.org/10.1016/j.jat.2005.07.001 Zbl1082.41007

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