Approximationseigenschaften der Gammaoperatoren

Voronovskaya type asymptotic approximation by modified Gamma operators

“…In [10] Lupas and Müller defined the Gamma operators G n (f; x) as G n ðf ; xÞ ¼ where g n ðx; uÞ ¼ x nþ1 n! e Àxu u n ; x > 0.…”

On Convergence of General Gamma Type Operators

“…Müller [1] introduced and investigated some approximation properties of the sequence of linear positive operators {G n } defined by…”

A characterization of weighted approximations by the Post-Widder and the Gamma operators

“…As usual denotes the Gamma function. A closely related to the Post-Widder operator is the Gamma operator, introduced by Lupas and Müller [9] and given by…”