We introduce the concepts of complex polyanalytic weighted Bergman spaces and of quaternionic polyanalytic weighted Bergman spaces of first and sec-ond kind. In these spaces we then prove qualitative and quantitative results in approximation by polyanalytic polynomials. The quantitative approxima-tion results are given in terms of higher order Lp-moduli of smoothness and in terms of the best approximation quantity.
Density of polyanalytic polynomials in complex and quaternionic polyanalytic weighted Bergman spaces
Sabadini I.
2022-01-01
Abstract
We introduce the concepts of complex polyanalytic weighted Bergman spaces and of quaternionic polyanalytic weighted Bergman spaces of first and sec-ond kind. In these spaces we then prove qualitative and quantitative results in approximation by polyanalytic polynomials. The quantitative approxima-tion results are given in terms of higher order Lp-moduli of smoothness and in terms of the best approximation quantity.File in questo prodotto:
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