Abstract
As is well known, the theory of the classical Bernstein polynomials is connected with the theory of probability on the one hand and with the theory of matrix transformations and summability on the other hand. It is the purpose of the present paper to define and to investigate the Lototsky method of summability on the space of Radon probability measures on a compact topological space T. By the aid of an extended version of the Bohman-Korovkin approximation theorem we shall prove a convergence theorem for the sequence (Ln,ρ,P)n≧1 of so-called Lototsky-Schnabl operators, having ρ as its sequence of “ray functions”. By specializing in an appropriate manner the underlying space T as well as the matrix P of weights, we shall deduce from this general theorem a result concerning the approximation properties of the sequence (Ln,ρ)n≧1 of Lototsky-Bernstein operators acting on the space of real-valued functions which are continuous on a compact N-simplex.
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Schempp, W. Zur Lototsky — Transformation über kompakten Räumen von Wahrscheinlichkeitsmassen. Manuscripta Math 5, 199–211 (1971). https://doi.org/10.1007/BF01443253
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DOI: https://doi.org/10.1007/BF01443253