Maximal Cohen-Macaulay Modules over Cohen-Macaulay Rings

Maximal Cohen-Macaulay Modules over Cohen-Macaulay Rings PDF Author: Y. Yoshino
Publisher: Cambridge University Press
ISBN: 9780521356947
Category : Mathematics
Languages : en
Pages : 0

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Book Description
The purpose of these notes is to explain in detail some topics on the intersection of commutative algebra, representation theory and singularity theory. They are based on lectures given in Tokyo, but also contain new research. It is the first cohesive account of the area and will provide a useful synthesis of recent research for algebraists.

Maximal Cohen-Macaulay Modules over Cohen-Macaulay Rings

Maximal Cohen-Macaulay Modules over Cohen-Macaulay Rings PDF Author: Y. Yoshino
Publisher: Cambridge University Press
ISBN: 9780521356947
Category : Mathematics
Languages : en
Pages : 0

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Book Description
The purpose of these notes is to explain in detail some topics on the intersection of commutative algebra, representation theory and singularity theory. They are based on lectures given in Tokyo, but also contain new research. It is the first cohesive account of the area and will provide a useful synthesis of recent research for algebraists.

Cohen-Macaulay Rings

Cohen-Macaulay Rings PDF Author: Winfried Bruns
Publisher: Cambridge University Press
ISBN: 0521566746
Category : Mathematics
Languages : en
Pages : 471

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Book Description
In the last two decades Cohen-Macaulay rings and modules have been central topics in commutative algebra. This book meets the need for a thorough, self-contained introduction to the homological and combinatorial aspects of the theory of Cohen-Macaulay rings, Gorenstein rings, local cohomology, and canonical modules. A separate chapter is devoted to Hilbert functions (including Macaulay's theorem) and numerical invariants derived from them. The authors emphasize the study of explicit, specific rings, making the presentation as concrete as possible. So the general theory is applied to Stanley-Reisner rings, semigroup rings, determinantal rings, and rings of invariants. Their connections with combinatorics are highlighted, e.g. Stanley's upper bound theorem or Ehrhart's reciprocity law for rational polytopes. The final chapters are devoted to Hochster's theorem on big Cohen-Macaulay modules and its applications, including Peskine-Szpiro's intersection theorem, the Evans-Griffith syzygy theorem, bounds for Bass numbers, and tight closure. Throughout each chapter the authors have supplied many examples and exercises which, combined with the expository style, will make the book very useful for graduate courses in algebra. As the only modern, broad account of the subject it will be essential reading for researchers in commutative algebra.

Cohen-Macaulay Representations

Cohen-Macaulay Representations PDF Author: Graham J. Leuschke
Publisher: American Mathematical Soc.
ISBN: 0821875817
Category : Mathematics
Languages : en
Pages : 390

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Book Description
This book is a comprehensive treatment of the representation theory of maximal Cohen-Macaulay (MCM) modules over local rings. This topic is at the intersection of commutative algebra, singularity theory, and representations of groups and algebras. Two introductory chapters treat the Krull-Remak-Schmidt Theorem on uniqueness of direct-sum decompositions and its failure for modules over local rings. Chapters 3-10 study the central problem of classifying the rings with only finitely many indecomposable MCM modules up to isomorphism, i.e., rings of finite CM type. The fundamental material--ADE/simple singularities, the double branched cover, Auslander-Reiten theory, and the Brauer-Thrall conjectures--is covered clearly and completely. Much of the content has never before appeared in book form. Examples include the representation theory of Artinian pairs and Burban-Drozd's related construction in dimension two, an introduction to the McKay correspondence from the point of view of maximal Cohen-Macaulay modules, Auslander-Buchweitz's MCM approximation theory, and a careful treatment of nonzero characteristic. The remaining seven chapters present results on bounded and countable CM type and on the representation theory of totally reflexive modules.

Special Conditions on Maximal Cohen-Macaulay Modules, and Applications to the Theory of Multiplicities

Special Conditions on Maximal Cohen-Macaulay Modules, and Applications to the Theory of Multiplicities PDF Author: Douglas Hanes
Publisher:
ISBN:
Category :
Languages : en
Pages : 238

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Book Description


Maximal Cohen-Macaulay Modules Over Cohen-Macaulay Rings

Maximal Cohen-Macaulay Modules Over Cohen-Macaulay Rings PDF Author: YĆ«ji Yoshino
Publisher: Cambridge University Press
ISBN: 0521356946
Category : Mathematics
Languages : en
Pages : 191

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Book Description
The purpose of these notes is to explain in detail some topics on the intersection of commutative algebra, representation theory and singularity theory. They are based on lectures given in Tokyo, but also contain new research. It is the first cohesive account of the area and will provide a useful synthesis of recent research for algebraists.

Topics in the Homological Theory of Modules Over Commutative Rings

Topics in the Homological Theory of Modules Over Commutative Rings PDF Author: Melvin Hochster
Publisher: American Mathematical Soc.
ISBN: 0821816748
Category : Mathematics
Languages : en
Pages : 86

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Book Description
Contains expository lectures from the CBMS Regional Conference in Mathematics held at the University of Nebraska, June 1974. This book deals mainly with developments and still open questions in the homological theory of modules over commutative (usually, Noetherian) rings.

Stable Module Theory

Stable Module Theory PDF Author: Maurice Auslander
Publisher: American Mathematical Soc.
ISBN: 0821812947
Category : Commutative rings
Languages : en
Pages : 150

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Book Description
The notions of torsion and torsion freeness have played a very important role in module theory--particularly in the study of modules over integral domains. Furthermore, the use of homological techniques in this connection has been well established. It is the aim of this paper to extend these techniques and to show that this extension leads naturally to several new concepts (e.g. k-torsion freeness and Gorenstein dimension) which are useful in the classification of modules and rings.

Maximal Cohen-Macaulay Modules Over Cohen-Macaulay Rings

Maximal Cohen-Macaulay Modules Over Cohen-Macaulay Rings PDF Author: Y. Yoshino
Publisher:
ISBN: 9781107366381
Category : Cohen-Macaulay modules
Languages : en
Pages : 188

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Book Description
The purpose of these notes is to explain in detail some topics on the intersection of commutative algebra, representation theory and singularity theory. They are based on lectures given in Tokyo, but also contain new research. It is the first cohesive account of the area and will provide a useful synthesis of recent research for algebraists.

Syzygies and Hilbert Functions

Syzygies and Hilbert Functions PDF Author: Irena Peeva
Publisher: CRC Press
ISBN: 1420050915
Category : Mathematics
Languages : en
Pages : 305

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Book Description
Hilbert functions and resolutions are both central objects in commutative algebra and fruitful tools in the fields of algebraic geometry, combinatorics, commutative algebra, and computational algebra. Spurred by recent research in this area, Syzygies and Hilbert Functions explores fresh developments in the field as well as fundamental concepts.

Steps in Commutative Algebra

Steps in Commutative Algebra PDF Author: R. Y. Sharp
Publisher: Cambridge University Press
ISBN: 0521646235
Category : Mathematics
Languages : en
Pages : 371

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Book Description
Introductory account of commutative algebra, aimed at students with a background in basic algebra.