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arXiv · 2207.09278

Contractive projections in Paley-Wiener spaces

Aleksei Kulikov·Ilya Zlotnikov
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Abstract

Let $S_1$ and $S_2$ be disjoint finite unions of parallelepipeds. We describe necessary and sufficient conditions on the sets $S_1,S_2$ and exponents $p$ such that the canonical projection $P$ from $PW_{S_1\cup S_2}^p$ to $PW_{S_1}^p$ is a contraction.

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Aleksei Kulikov, Ilya Zlotnikov. 2022-07-19. Contractive projections in Paley-Wiener spaces. https://doi.org/10.1090/proc/16336

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