On linearisation and existence of preduals

Fuente: arXiv
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Main Author: Kruse, Karsten
Format: Preprint
Published: 2024
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author Kruse, Karsten
author_facet Kruse, Karsten
contents We study the problem of existence of preduals of locally convex Hausdorff spaces. We derive necessary and sufficient conditions for the existence of a predual with certain properties of a bornological locally convex Hausdorff space $X$. Then we turn to the case that $X=\mathcal{F}(Ω)$ is a space of scalar-valued functions on a non-empty set $Ω$ and characterise those among them which admit a special predual, namely a strong linearisation, i.e. there are a locally convex Hausdorff space $Y$, a map $δ\colonΩ\to Y$ and a topological isomorphism $T\colon\mathcal{F}(Ω)\to Y_{b}'$ such that $T(f)\circ δ= f$ for all $f\in\mathcal{F}(Ω)$.
format Preprint
id arxiv_https___arxiv_org_abs_2402_12615
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On linearisation and existence of preduals
Kruse, Karsten
Functional Analysis
Primary 46A08, 46A20 Secondary 46A70, 46B10, 46E10
We study the problem of existence of preduals of locally convex Hausdorff spaces. We derive necessary and sufficient conditions for the existence of a predual with certain properties of a bornological locally convex Hausdorff space $X$. Then we turn to the case that $X=\mathcal{F}(Ω)$ is a space of scalar-valued functions on a non-empty set $Ω$ and characterise those among them which admit a special predual, namely a strong linearisation, i.e. there are a locally convex Hausdorff space $Y$, a map $δ\colonΩ\to Y$ and a topological isomorphism $T\colon\mathcal{F}(Ω)\to Y_{b}'$ such that $T(f)\circ δ= f$ for all $f\in\mathcal{F}(Ω)$.
title On linearisation and existence of preduals
topic Functional Analysis
Primary 46A08, 46A20 Secondary 46A70, 46B10, 46E10
url https://arxiv.org/abs/2402.12615