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On Mittag–Leffler d-Orthogonal Polynomials

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Abstract

This paper presents a first result of a long-term research project dealing with the construction of d-orthogonal polynomials with Hahn’s property. We shall show that the latter class could be characterized by expanding a polynomial as a finite sum of first derivatives of the elements of the sequence and we shall explain how this characterization could be used to construct Hahn-classical d-orthogonal polynomials as well. In this paper, we look for solutions of linear combinations of the first derivatives of two consecutive elements of the sequence by considering the derivative operator and Delta (discrete) operator. The resulting polynomials constitute a particular class of Laguerre d-orthogonal polynomials and a generalization of Mittag–Leffler polynomials, respectively.

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Acknowledgements

Part of this work was performed while the author is visiting the KU Leuven and he kindly thanks its hospitality. He also thanks the referee of this paper for his/her useful comments and suggestions.

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  1. Department of Mathematics, University of Tebessa, 12002, Tebessa, Algeria

    Abdessadek Saib

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Saib, A. On Mittag–Leffler d-Orthogonal Polynomials. Mediterr. J. Math. 17, 19 (2020). https://doi.org/10.1007/s00009-019-1449-0

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  • DOI: https://doi.org/10.1007/s00009-019-1449-0

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