Published in Issue 2012-08-17
How to Cite
Sharma, H. (2012). Note on approximation properties of generalized Durrmeyer operators. Mathematical Sciences, 6(1). https://doi.org/10.1186/2251-7456-6-24
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Abstract
Abstract Purpose To study the rate of convergence of q analogue of Durrmeyer operator generalization proposed by N. Deo. Methods We first estimate moments of q -Durrmeyer operators. We also study the rate of convergence our operators. Results We use Maple programming to draw the graphs for the approximation process for two operators. In all graphs, we observe that either classical operator has sharp convergence or both operators behave alike after a large number of iterations. Conclusions We conclude that the modified operator does not improve the approximation process.Keywords
- q-integers,
- q-factorial,
- q-Durrmeyer operators,
- q-Beta function,
- Modulus of continuity,
- 41A25; 41A35
References
- Derriennic (1981) Sur ℓ approximation de fonctions integrables sur [0,1] par des polynomes de Bernstein modifies (pp. 325-343) https://doi.org/10.1016/0021-9045(81)90101-5
- Deo et al. (2011) Simultaneous approximation on generalized Bernstein Durrmeyer operators
- Ostrovska (2003) q-Bernstein polynomials and their iterates 123(2) (pp. 232-255) https://doi.org/10.1016/S0021-9045(03)00104-7
- Ostrovska (2007) The first decade of the q-Bernstein polynomials: results and perspectives 2(1) (pp. 35-51)
- Videnskii (2005) On some classes of q-parametric positive operators (pp. 213-222) https://doi.org/10.1007/3-7643-7340-7_15
- Wang (2005) Korovkin-type theorem and application 132(2) (pp. 258-264) https://doi.org/10.1016/j.jat.2004.12.010
- Wang (2007) Voronovskaya-type formulas and saturation of convergence for q-Bernstein polynomials for 0 < q < 1 (pp. 182-195) https://doi.org/10.1016/j.jat.2006.08.005
- Wang (2008) Properties of convergence for ω,q-Bernstein polynomials 340(2) (pp. 1096-1108) https://doi.org/10.1016/j.jmaa.2007.09.004
- Wang and Meng (2005) The rate of convergence of q-Bernstein polynomials for 0 < q < 1 136(2) (pp. 151-158) https://doi.org/10.1016/j.jat.2005.07.001
- Gupta (2008) Some approximation properties of q-Durrmeyer operators 197(1) (pp. 172-178) https://doi.org/10.1016/j.amc.2007.07.056
- Gupta and Sharma (2011) Recurrence formula and better approximation for q-Durrmeyer operators 32(2) (pp. 140-145) https://doi.org/10.1134/S1995080211020065
- Kac and Cheung (2002) Springer https://doi.org/10.1007/978-1-4613-0071-7
10.1186/2251-7456-6-24