Operator Ranges and Spaceability: Extending a Result of Kitson and Timoney

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Main Author: Ribeiro, Geivison
Format: Preprint
Published: 2025
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author Ribeiro, Geivison
author_facet Ribeiro, Geivison
contents We revisit the results of Kitson and Timoney \emph{[J.~Math.~Anal.~Appl.~\textbf{378} (2011), 680--686]} on the spaceability of complements of operator ranges, extending one of their main theorems to the general Fréchet setting. In particular, we provide an affirmative answer to the question posed in \emph{Remark~3.4} of that paper, showing that the conclusion remains valid when the operators act between Fréchet spaces. Moreover, we show that the same phenomenon occurs for arbitrary (possibly uncountable) families of operators. The arguments presented here follow the spirit of the original work.
format Preprint
id arxiv_https___arxiv_org_abs_2510_11332
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Operator Ranges and Spaceability: Extending a Result of Kitson and Timoney
Ribeiro, Geivison
Functional Analysis
15A03, 46B87, 46A16, 28A99
We revisit the results of Kitson and Timoney \emph{[J.~Math.~Anal.~Appl.~\textbf{378} (2011), 680--686]} on the spaceability of complements of operator ranges, extending one of their main theorems to the general Fréchet setting. In particular, we provide an affirmative answer to the question posed in \emph{Remark~3.4} of that paper, showing that the conclusion remains valid when the operators act between Fréchet spaces. Moreover, we show that the same phenomenon occurs for arbitrary (possibly uncountable) families of operators. The arguments presented here follow the spirit of the original work.
title Operator Ranges and Spaceability: Extending a Result of Kitson and Timoney
topic Functional Analysis
15A03, 46B87, 46A16, 28A99
url https://arxiv.org/abs/2510.11332