@Article{ATA-34-297, author = {}, title = {Approximation by a Complex Post-Widder Type Operator}, journal = {Analysis in Theory and Applications}, year = {2018}, volume = {34}, number = {4}, pages = {297--305}, abstract = {

In the present article, we deal with the so-called overconvergence phenomenon in $\mathbb{C}$ of a slightly modified Post-Widder operator of real variable, that is with the extension of its approximation properties from the real axis in the complex plane. In this sense, error estimates in approximation and a quantitative Voronovskaya-type asymptotic formula are established.

}, issn = {1573-8175}, doi = {https://doi.org/10.4208/ata.OA-2018-0003}, url = {http://global-sci.org/intro/article_detail/ata/12843.html} }