Abstract
We obtain a criterion of completeness of a system of exponentials in the Hardy-Smirnov spaces in unbounded convex polygons and study the properties of incomplete systems of exponentials.
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Vinnitskii, B.V. Approximation properties of systems of exponentials in one space of analytic functions. Ukr Math J 48, 189–206 (1996). https://doi.org/10.1007/BF02372045
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DOI: https://doi.org/10.1007/BF02372045