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JOURNALS // Funktsional'nyi Analiz i ego Prilozheniya // Archive

Funktsional. Anal. i Prilozhen., 2024 Volume 58, Issue 4, Pages 32–49 (Mi faa4177)

Lack of metric projectivity, injectivity, and flatness for modules $L_p$

Norbert Nemesh

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow, Russia

Abstract: In this paper, we demonstrate that for a locally compact Hausdorff space $S$ and a decomposable Borel measure $\mu$, metric projectivity, injectivity, or flatness of the $C_0(S)$-module $L_p(S,\mu)$ implies that $\mu$ is purely atomic with at most one atom.

Keywords: metric projectivity, metric injectivity, metric flatness, $L_p$-space.

MSC: 46M10, 46H25, 46B04

Received: 20.11.2023
Revised: 26.12.2023
Accepted: 23.01.2024

DOI: 10.4213/faa4177


 English version:
Functional Analysis and Its Applications, 2024, 58:4, 371–383

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© Steklov Math. Inst. of RAS, 2025