收敛类中主要的Pavlov - Korevaar - Dixon插值问题

IF 0.5 Q3 MATHEMATICS Ufa Mathematical Journal Pub Date : 2017-01-01 DOI:10.13108/2017-9-4-22
R. Gaisin
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引用次数: 2

摘要

. 研究了一类由收敛类(非拟解析类)中的某个主量决定的指数型整函数的插值问题。在一个较小的类中,当主体具有凹性时,B. Berndtsson研究了类似的问题,其节点位于自然数的某子序列上。他得到了这个插值问题的可解性判据。在那里,他首先应用了H¨ormander方法来解决𝜕问题。在A.I. Pavlov、J. Korevaar和M. Dixon的著作中,Berndtsson意义上的插值序列成功地应用于复分析中的一系列问题。在此基础上,发现了幂系统的近似性质与著名的Polya和Macintyre问题之间的关系。本文对任意实数序列建立了更一般意义上的插值性质判据。在主要定理的证明中,我们采用了对伯恩得松方法的一个修正。
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Pavlov - Korevaar - Dixon interpolation problem with majorant in convergence class
. 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 H¨ormander method for solving a 𝜕 -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.
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