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Research Article | Open Access

A characterization of infra-Lindelöf spaces

Department of Mathematics, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
Department of Mathematics, Faculty of Science, Al al-Bayt University, Mafraq, Jordan; omarimutah1@yahoo.com
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Abstract

In this paper, we provided a new topological structure called co-infra topological space. We provided new results regarding co-infra open and closed sets. Moreover, we investigated a new characterization of Infra-Lindelöf spaces.

Keywords

infra-topologyinfra-openLindelöfinfra-Lindelöfco-infra open
CLC number: 54A05, 54A10

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AIMS Mathematics
Volume 11 Issue 1,
January 2026
Pages 717-733
DOI: 10.3934/math.2026031

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Alghamdi OF, Al-Omari A. A characterization of infra-Lindelöf spaces. AIMS Mathematics, 2026, 11(1): 717-733. https://doi.org/10.3934/math.2026031

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Received: 01 November 2025
Revised: 22 December 2025
Accepted: 04 January 2026
Published: 09 January 2026
©2026 the Author(s), licensee AIMS Press.

This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0)