Blar i UiS Brage på forfatter "Kulikov, Aleksei"
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Completeness of certain exponential systems and zeros of lacunary polynomials
Kulikov, Aleksei; Ulanovskii, Alexander; Zlotnikov, Ilya (Peer reviewed; Journal article, 2023-05) -
Contractive projections in Paley-Wiener spaces
Kulikov, Aleksei; Zlotnikov, Ilia (Peer reviewed; Journal article, 2023)Let S1 and S2 be disjoint finite unions of parallelepipeds. We describe necessary and sufficient conditions on the sets S1, S2 and exponents p such that the canonical projection P from PWPS1US2 to PWPS1 is a contraction.