Title of article :
Semi Post–Widder Operators and Difference Estimates
Author/Authors :
Gupta ، Vijay Department of Mathematics - School of Mathematical Sciences - Netaji Subhas University of Technology , Herzog ، Monika Department of Applied Mathematics - Faculty of Computer Science and Telecommunications - CracowUniversity of Technology
Abstract :
We consider the Post–Widder operators of semi-exponential type, which are a generalization of the exponential operators connected with x^2. This modification has the beauty to find difference with other operators, while the original Post–Widder operators do not have such property.We estimate quantitative difference of these operators with Baskakov type operators and Szász–Kantorovich operators, along with some composition of operators. Finally, we further consider a form preserving linear functions and estimate some direct results.
Keywords :
Semi , exponential type Post–Widder operators , Moment producing function , Difference , Composition ,
Journal title :
Bulletin of the Iranian Mathematical Society
Journal title :
Bulletin of the Iranian Mathematical Society
