Approximation by q-Baskakov–Durrmeyer Type Operators of Two Variables

2016 ◽  
pp. 195-209
Author(s):  
İsmet Yüksel ◽  
Ülkü Dinlemez ◽  
Birol Altın
Keyword(s):  
Durrmeyer Type Operators

scholarly journals Approximation by Jakimovski-Leviatan-Stancu-Durrmeyer type operators

Filomat ◽  
2019 ◽  
Vol 33 (6) ◽  
pp. 1517-1530 ◽  
Author(s):  
M. Mursaleen ◽  
Shagufta Rahman ◽  
Khursheed Ansari
Keyword(s):  
Upper Bound ◽  
Simultaneous Approximation ◽  
Approximation Theorem ◽  
Approximation Properties ◽  
Statistical Approximation ◽  
Durrmeyer Operators ◽  
Durrmeyer Type Operators

In the present paper, we introduce Stancu type modification of Jakimovski-Leviatan-Durrmeyer operators. First, we estimate moments of these operators. Next, we study the problem of simultaneous approximation by these operators. An upper bound for the approximation to rth derivative of a function by these operators is established. Furthermore, we obtain A-statistical approximation properties of these operators with the help of universal korovkin type statistical approximation theorem.

Local and Global Approximation for Certain (p, q)-Durrmeyer Type Operators

2017 ◽  
Vol 12 (8) ◽  
pp. 1973-1989 ◽  
Author(s):  
Ana Maria Acu ◽  
Vijay Gupta ◽  
Neha Malik
Keyword(s):  
Global Approximation ◽  
Durrmeyer Type Operators

Approximation by $$q$$ q -Baskakov Durrmeyer type operators

2013 ◽  
Vol 63 (1) ◽  
pp. 73-89
Author(s):  
P. N. Agrawal ◽  
A. Sathish Kumar
Keyword(s):  
Durrmeyer Type Operators

Szász–Durrmeyer type operators based on Charlier polynomials

2015 ◽  
Vol 268 ◽  
pp. 1001-1014 ◽  
Author(s):  
Arun Kajla ◽  
P.N. Agrawal
Keyword(s):  
Charlier Polynomials ◽  
Durrmeyer Type Operators

scholarly journals Direct Estimate for Some Operators of Durrmeyer Type in Exponential Weighted Space

2014 ◽  
Vol 47 (2) ◽  
Author(s):  
Grażyna Krech ◽  
Eugeniusz Wachnicki
Keyword(s):  
Weighted Space ◽  
Type Theorem ◽  
Approximation Order ◽  
Direct Estimate ◽  
Voronovskaya Type Theorem ◽  
Durrmeyer Type Operators

AbstractIn the present paper, we investigate the convergence and the approximation order of some Durrmeyer type operators in exponential weighted space. Furthermore, we obtain the Voronovskaya type theorem for these operators.

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