Annales Mathematiques Africaines


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Contenu > Anciens Numéros > Volume_3

Quasi-graduations of Rings and Modules, Criteria of
Generalized Analytic Independence



Youssouf M. DIAGANA
UFR-SFA Laboratoire de Mathématiques et Informatique
Université d'Abobo-Adjamé, 02 BP 801 Abidjan 02, CÔTE D'IVOIRE



AMS Classifications: 13A02, 13A30, 13D40, 13H15.
Key words : filtrations, quasi-graduations of rings and modules, Generalized analytic independence.

Abstract:


A +quasi-graduation of a commutative ring is a family of subgroups of such that is a subring of ; and ; for all . We will show that elements of are -independent of order with respect to a +quasi-graduation if and only if the two properties which follow hold: they are -independent of order and there exists a relation of compatibility between and where is the -submodule of generated by these elements. The concept of -independence will be extended to modules and we give criteria of -independence in terms of isomorphisms of graded modules .

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