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This article is cited in 3 scientific papers (total in 3 papers)
Pavlov–Korevaar–Dixon interpolation problem with majorant in convergence class
R. A. Gaisin Bashkir State University,
Zaki Validi str. 32,
450077, Ufa, Russia
Abstract:
We study an interpolation problem in the class of entire functions of exponential type determined by some majorant in a convergence class (non-quasianalytic majorant). In a smaller class, when the majorant possessed a concavity property, similar problem was studied by B. Berndtsson with the nodes at some subsequence of natural numbers. He obtained a solvability criterion for this interpolation problem. At that, he applied first the Hörmander method for solving a $\overline{\partial}$-problem. In works by A.I. Pavlov, J. Korevaar and M. Dixon, interpolation sequences in the Berndtsson sense were applied successfully in a series of problems in the complex analysis. At that, there was found a relation with approximative properties of the system of powers $\{z^{p_n}\}$ and with the well known Polya and Macintyre problems.
In this paper we establish the criterion of the interpolation property in a more general sense for an arbitrary sequence of real numbers. In the proof of the main theorem we employ a modification of the Berndtsson method.
Keywords:
interpolation sequence, entire function, convergence class.
Received: 14.09.2017
Citation:
R. A. Gaisin, “Pavlov–Korevaar–Dixon interpolation problem with majorant in convergence class”, Ufa Math. J., 9:4 (2017), 22–34
Linking options:
https://www.mathnet.ru/eng/ufa400https://doi.org/10.13108/2017-9-4-22 https://www.mathnet.ru/eng/ufa/v9/i4/p22
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