Intermediary rings in normal pairs

• Autores: Ahmed Ayache, Noômen Jarboui
• Localización: Journal of pure and applied algebra, ISSN 0022-4049, Vol. 212, Nº 10, 2008, págs. 2176-2181
• Idioma: inglés
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• Resumen

  • We establish in this paper a result that gives the number of intermediary rings between R and S where (R,S) is a normal pair of rings. This result answers in particular a question which was left open in [A. Jaballah, Finiteness of the set of intermediary rings in a normal pair, Saintama Math. J. 17 (1999) 59�61]. Further applications are also given.