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By Donald S. Passman

First released in 1991, this publication comprises the center fabric for an undergraduate first path in ring concept. utilizing the underlying subject of projective and injective modules, the writer touches upon a variety of facets of commutative and noncommutative ring idea. specifically, a few significant effects are highlighted and proved. half I, 'Projective Modules', starts off with easy module idea after which proceeds to surveying numerous specific periods of earrings (Wedderbum, Artinian and Noetherian jewelry, hereditary jewelry, Dedekind domain names, etc.). This half concludes with an creation and dialogue of the strategies of the projective dimension.Part II, 'Polynomial Rings', stories those jewelry in a mildly noncommutative surroundings. many of the effects proved comprise the Hilbert Syzygy Theorem (in the commutative case) and the Hilbert Nullstellensatz (for virtually commutative rings). half III, 'Injective Modules', contains, particularly, numerous notions of the hoop of quotients, the Goldie Theorems, and the characterization of the injective modules over Noetherian earrings. The publication comprises a number of routines and an inventory of urged extra studying. it's compatible for graduate scholars and researchers drawn to ring idea.

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