arXiv subjects

Parvan Parvanov

Publications and source records attributed to Parvan Parvanov.

3 recordsLinked to original sources

arXiv2025

Higher Order Approximation of Continuous Functions by a Modified Meyer-K\"{o}nig and Zeller-Type Operator

A new Goodman-Sharma type modification of the Meyer-K\"{o}nig and Zeller operator for approximation of bounded continuous functions on [0,1) is presented. We estimate the approximation error of the proposed operator and prove direct and strong converse theorems with respect to a related K-functional. The operator is linear but not a positive one. However it benefits a better order of approximation compared to the Goodman-Sharma variant of Meyer-K\"{o}nig and Zeller type operator investigated by Ivanov and Parvanov in 2012.

math.CA↗

arXiv2024

On a New Modification of Baskakov Operators with Higher Order of Approximation

A new Goodman-Sharma modification of the Baskakov operator is presented for approximation of bounded and continuous on $[0,\,\infty)$ functions. In our study on the approximation error of the proposed operator we prove direct and strong converse theorems with respect to a related K-functional. This operator is linear but not positive. However it has the advantage of a higher order of approximation compared to the Goodman-Sharma variant of the Baskakov operator defined in 2005 by Finta.

math.CA↗

arXiv2024

Higher Order Approximation of Functions by Modified Goodman-Sharma Operators

Here we study the approximation properties of a modified Goodman-Sharma operator recently considered by Acu and Agrawal in 2019. This operator is linear but not positive. It has the advantage of a higher order of approximation of functions compared with the Goodman-Sharma operator. We prove direct and strong converse theorems in terms of a related K-functional.

math.CA↗