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Date: 2012-01-20 03:57:00Algebraic structures Semigroup theory Category theory Homological algebra Module theory Monoid Group action Projective cover Semigroup action Module Flat module Ring | Preliminaries Known results on covers X -coversAdd to Reading ListSource URL: www-users.york.ac.ukDownload Document from Source WebsiteFile Size: 285,68 KBShare Document on Facebook |