Download E-books The Use of Ultraproducts in Commutative Algebra (Lecture Notes in Mathematics) PDF

By Hans Schoutens

Even with a few fresh functions of ultraproducts in algebra, they continue to be mostly unknown to commutative algebraists, partly simply because they don't look after simple houses similar to Noetherianity. This paintings desires to make a powerful case opposed to those prejudices. extra accurately, it experiences ultraproducts of Noetherian neighborhood earrings from a simply algebraic viewpoint, in addition to how they are often used to move effects among the confident and 0 features, to derive uniform bounds, to outline tight closure in attribute 0, and to turn out asymptotic models of homological conjectures in combined attribute. a few of these effects are acquired utilizing editions known as chromatic items, that are usually even Noetherian. This ebook, neither assuming nor utilizing any logical formalism, is meant for algebraists and geometers, within the wish of popularizing ultraproducts and their purposes in algebra.

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