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Cyclic Vectors and Invariant Subspaces of the Backward Shift Operator in Schwartz Modules

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Abstract

Cyclic vectors and proper closed invariant subspaces of the backward shift operator in the Schwartz modules of entire functions of exponential type are described. The results are applied to describe ideals of the algebra of infinitely differentiable functions on a closed or open interval containing \(0\) with Duhamel product as multiplication.

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Acknowledgments

The authors are grateful to the referee for useful comments.

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Correspondence to S. N. Melikhov.

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Translated from Funktsional'nyi Analiz i ego Prilozheniya, 2022, Vol. 56, pp. 39–51 https://doi.org/10.4213/faa3982.

Translated by O. V. Sipacheva

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Ivanova, O.A., Melikhov, S.N. Cyclic Vectors and Invariant Subspaces of the Backward Shift Operator in Schwartz Modules. Funct Anal Its Appl 56, 188–198 (2022). https://doi.org/10.1134/S0016266322030030

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  • DOI: https://doi.org/10.1134/S0016266322030030

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