An Approach to a Dual of Regular Closure Operators
نویسنده
چکیده
R esum e. Nous introduisons des techniques nouvelles pour obtenir, dans un con-texte cat egorique, un analogue compl etement sym etrique de la fermeture reguli ere de Salbany. Pour cette investigation, nous utilisons des correspondances de Galois et des structures de factorisation cribl ee. Nous obtenons des factorisations pour les plus importantes correspondances de Galois qui representent ces constructions de fermeture, et nous developpons des formules detaill ees pour les constructions d'une fermeture idempotente canonique et d'une fermeture faiblement h er editaire, a partir de classes arbitraires d'objects et de classes sp eciales de morphismes.
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