BASIC PRERADICALS AND MAIN INJECTIVE MODULES

We consider those injective modules that determine every left exact preradical and we call them main injective modules. We construct a main injective module for every ring and we prove some of its properties. In particular we give a characterization, in terms of main injective modules, of rings with...

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Detalhes bibliográficos
Autores: Raggi, F, Ríos, J, Rincon, H, Fernandez-Alonso, R
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:México
Recursos:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/3153
Acesso em linha:http://hdl.handle.net/11154/3153
Access Level:acceso abierto
Palavra-chave:Mathematics, Applied
Mathematics
Preradical
module
ring
lattice
big lattice
injective module
Descrição
Resumo:We consider those injective modules that determine every left exact preradical and we call them main injective modules. We construct a main injective module for every ring and we prove some of its properties. In particular we give a characterization, in terms of main injective modules, of rings with a dimension defined by a filtration in the lattice of left exact preradicals. We define also the concept of basic preradical and prove some of its properties. In particular we prove that the class of all basic preradicals is a set, giving a bijective correspondence with the set of all left exact preradicals.