The Use of Ultraproducts in Commutative Algebra
(Sprache: Englisch)
Exploring ultraproducts of Noetherian local rings from an algebraic perspective, this volume illustrates the many ways they can be used in commutative algebra. The text includes an introduction to tight closure in characteristic zero, a survey of flatness criteria, and more.
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Exploring ultraproducts of Noetherian local rings from an algebraic perspective, this volume illustrates the many ways they can be used in commutative algebra. The text includes an introduction to tight closure in characteristic zero, a survey of flatness criteria, and more.
Klappentext zu „The Use of Ultraproducts in Commutative Algebra “
In spite of some recent applications of ultraproducts in algebra, they remain largely unknown to commutative algebraists, in part because they do not preserve basic properties such as Noetherianity. This work wants to make a strong case against these prejudices. More precisely, it studies ultraproducts of Noetherian local rings from a purely algebraic perspective, as well as how they can be used to transfer results between the positive and zero characteristics, to derive uniform bounds, to define tight closure in characteristic zero, and to prove asymptotic versions of homological conjectures in mixed characteristic. Some of these results are obtained using variants called chromatic products, which are often even Noetherian. This book, neither assuming nor using any logical formalism, is intended for algebraists and geometers, in the hope of popularizing ultraproducts and their applications in algebra.
Inhaltsverzeichnis zu „The Use of Ultraproducts in Commutative Algebra “
- Ultraproducts and "o"' Theorem- Flatness
- Uniform Bounds
- Tight Closure in Positive Characteristic
- Tight Closure in Characteristic Zero. Affine Case
- Tight Closure in Characteristic Zero. Local Case
- Cataproducts
- Protoproducts
- Asymptotic Homological Conjectures in Mixed Characteristic.
Bibliographische Angaben
- Autor: Hans Schoutens
- 2010, X, 210 Seiten, Masse: 15,7 x 23,2 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3642133673
- ISBN-13: 9783642133671
- Erscheinungsdatum: 31.07.2010
Sprache:
Englisch
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