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This article is cited in 1 scientific paper (total in 1 paper)
Invariant Spaces of Entire Functions
A. S. Krivosheeva, O. A. Krivosheevab a Institute of Mathematics with Computing Centre, Ufa Federal Research Centre, Russian Academy of Sciences, Ufa
b Bashkir State University, Ufa
Abstract:
Subspaces of the space of analytic functions on a convex domain in the complex plane that are invariant with respect to the differentiation operator are studied. The problem of continuing all functions in an invariant subspace to entire functions is investigated. A simple geometric criterion for the existence of such a continuation is obtained. A criterion for the functions from an invariant subspace to be represented by a series of exponential monomials is also obtained. These monomials are the eigenfunctions and generalized eigenfunctions of the differentiation operator on the invariant subspace.
Keywords:
invariant subspace, analytic continuation, exponential monomial, entire function, series of exponentials.
Received: 18.01.2020 Revised: 10.11.2020
Citation:
A. S. Krivosheev, O. A. Krivosheeva, “Invariant Spaces of Entire Functions”, Mat. Zametki, 109:3 (2021), 380–396; Math. Notes, 109:3 (2021), 413–426
Linking options:
https://www.mathnet.ru/eng/mzm12678https://doi.org/10.4213/mzm12678 https://www.mathnet.ru/eng/mzm/v109/i3/p380
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