Whiskered Groupoids and Crossed Modules with Diagrams

In this study, we investigate the relationships between the category of crossed modules of groups and the category of whiskered groupoids. Our first aim is to construct a crossed module structure over groups from a whiskered groupoid with the objects set - a group (regular groupoid) - using the usu...

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Bibliographic Details
Main Authors: Erdal Ulualan, Zeynep Güler
Format: Article
Language:English
Published: Naim Çağman 2024-03-01
Series:Journal of New Theory
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Online Access:https://dergipark.org.tr/en/download/article-file/3594765
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Summary:In this study, we investigate the relationships between the category of crossed modules of groups and the category of whiskered groupoids. Our first aim is to construct a crossed module structure over groups from a whiskered groupoid with the objects set - a group (regular groupoid) - using the usual functor between the categories of crossed modules and cat groups. Conversely, the second aim is to construct a whiskered groupoid structure with the objects set, which is a group, from a crossed module of groups. While establishing this relationship, we frequently used arrow diagrams representing morphisms to make the axioms more comprehensible. We provide the conditions for the bimorphisms in a whiskered groupoid and give the relations between this structure and internal groupoids in the category of whiskered groupoids with the objects set as a group.
ISSN:2149-1402