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STUDIA MATHEMATICA - Issue no. 2 / 2016 | |||||||
Article: |
COMPLEX OPERATORS GENERATED BY q-BERNSTEIN POLYNOMIALS, Q 1. Authors: . |
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Abstract: By using a univalent and analytic function τ in a suitable open diskcentered in origin, we attach to analytic functions f, the complex Bernstein type operators of the form Bτn,q(f) = Bn,q (f ο τ-1),οτ where Bn,q denote the classical complex q-Bernstein polynomials, q ³ 1. The new complex operators satisfy the same quantitative estimates as Bn,q . As applications, for two concretechoices of τ , we construct complex rational functions and complex trigonometric polynomials which approximate f with a geometric rate. Mathematics Subject Classification (2010): Keywords: q-Bernstein-type operator, Voronovskajas theorem, quantitative estimates, complex rational operators, complex trigonometric polynomials |
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