Infinite Length Modules

Infinite Length Modules PDF Author: Henning Krause
Publisher: Birkhäuser
ISBN: 3034884265
Category : Mathematics
Languages : en
Pages : 437

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Book Description
This book is concerned with the role played by modules of infinite length when dealing with problems in the representation theory of groups and algebras, but also in topology and geometry; it shows the intriguing interplay between finite and infinite length modules.

Infinite Length Modules

Infinite Length Modules PDF Author: Henning Krause
Publisher: Birkhäuser
ISBN: 3034884265
Category : Mathematics
Languages : en
Pages : 437

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Book Description
This book is concerned with the role played by modules of infinite length when dealing with problems in the representation theory of groups and algebras, but also in topology and geometry; it shows the intriguing interplay between finite and infinite length modules.

Models, Modules and Abelian Groups

Models, Modules and Abelian Groups PDF Author: Rüdiger Göbel
Publisher: Walter de Gruyter
ISBN: 3110203030
Category : Mathematics
Languages : en
Pages : 509

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Book Description
This is a memorial volume dedicated to A. L. S. Corner, previously Professor in Oxford, who published important results on algebra, especially on the connections of modules with endomorphism algebras. The volume contains refereed contributions which are related to the work of Corner. It contains also an unpublished extended paper of Corner himself. A memorial volume with important contributions related to algebra.

Trends in Representation Theory of Algebras and Related Topics

Trends in Representation Theory of Algebras and Related Topics PDF Author: José Antonio de la Peña
Publisher: American Mathematical Soc.
ISBN: 0821838180
Category : Mathematics
Languages : en
Pages : 282

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Book Description
This book is based on lectures given during a Workshop on Representations of Algebras and Related Topics. Some additional articles are included in order to complete a panoramic view of the main trends of the subject. The volume contains original presentations by leading algebraists addressed to specialists as well as to a broader mathematical audience. The articles include new proofs, examples, and detailed arguments. Topics under discussion include moduli spaces associated to quivers, canonical basis of quantum algebras, categorifications and derived categories, $A$-infinity algebras and functor categories, cluster algebras, support varieties for modules and complexes, the Gabriel-Roiter measure for modules, and selfinjective algebras.

Representation Theory

Representation Theory PDF Author: Zongzhu Lin
Publisher: American Mathematical Soc.
ISBN: 0821845551
Category : Mathematics
Languages : en
Pages : 314

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Book Description
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Lifting Modules

Lifting Modules PDF Author: John Clark
Publisher: Springer Science & Business Media
ISBN: 3764375736
Category : Mathematics
Languages : en
Pages : 403

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Book Description
Extending modules are generalizations of injective modules and, dually, lifting modules generalize projective supplemented modules. This duality exhibits a certain asymmetry. While the theory of extending modules is well documented in monographs and text books, the purpose of this monograph is to provide a thorough study of supplements and projectivity conditions needed to investigate classes of modules related to lifting modules.

Infinite Length Modules

Infinite Length Modules PDF Author: Henning Krause
Publisher: Birkhauser
ISBN: 9780817664138
Category : Mathematics
Languages : en
Pages : 439

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Book Description


Non-hausdorff Completion, A: The Abelian Category Of C-complete Left Modules Over A Topological Ring

Non-hausdorff Completion, A: The Abelian Category Of C-complete Left Modules Over A Topological Ring PDF Author: Saul Lubkin
Publisher: World Scientific Publishing Company
ISBN: 9814667404
Category : Mathematics
Languages : en
Pages : 352

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Book Description
This book introduces entirely new invariants never considered before, in homological algebra and commutative (and even non-commutative) algebra. The C-completion C(M), and higher C-completions, Cn(M), are defined for an arbitrary left module M over a topological ring A. Spectral sequences are defined that use these invariants. Given a left module over a topological ring A, under mild conditions the usual Hausdorff completion: M^ can be recovered from the C-completion C(M), by taking the quotient module by the closure of {0}.The new invariants and tools in this book are expected to be used in the study of p-adic cohomology in algebraic geometry; and also in the study of p-adic Banach spaces — by replacing the cumbersome 'complete tensor product' of p-adic Banach spaces, with the more sophisticated 'C-complete tensor product', discussed in this book.It is also not unlikely that the further study of these new invariants may well develop into a new branch of abstract mathematics - connected with commutative algebra, homological algebra, and algebraic topology.

Model Theory and Modules

Model Theory and Modules PDF Author: Mike Prest
Publisher: Cambridge University Press
ISBN: 0521348331
Category : Mathematics
Languages : en
Pages : 402

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Book Description
In recent years the interplay between model theory and other branches of mathematics has led to many deep and intriguing results. In this, the first book on the topic, the theme is the interplay between model theory and the theory of modules. The book is intended to be a self-contained introduction to the subject and introduces the requisite model theory and module theory as it is needed. Dr Prest develops the basic ideas concerning what can be said about modules using the information which may be expressed in a first-order language. Later chapters discuss stability-theoretic aspects of modules, and structure and classification theorems over various types of rings and for certain classes of modules. Both algebraists and logicians will enjoy this account of an area in which algebra and model theory interact in a significant way. The book includes numerous examples and exercises and consequently will make an ideal introduction for graduate students coming to this subject for the first time.

Handbook of Tilting Theory

Handbook of Tilting Theory PDF Author: Lidia Angeleri Hügel
Publisher: Cambridge University Press
ISBN: 9780521680455
Category : Mathematics
Languages : en
Pages : 482

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Book Description
A handbook of key articles providing both an introduction and reference for newcomers and experts alike.

Approximations and Endomorphism Algebras of Modules

Approximations and Endomorphism Algebras of Modules PDF Author: Rüdiger Göbel
Publisher: Walter de Gruyter
ISBN: 3110218119
Category : Mathematics
Languages : en
Pages : 1002

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Book Description
This second, revised and substantially extended edition of Approximations and Endomorphism Algebras of Modules reflects both the depth and the width of recent developments in the area since the first edition appeared in 2006. The new division of the monograph into two volumes roughly corresponds to its two central topics, approximation theory (Volume 1) and realization theorems for modules (Volume 2). It is a widely accepted fact that the category of all modules over a general associative ring is too complex to admit classification. Unless the ring is of finite representation type we must limit attempts at classification to some restricted subcategories of modules. The wild character of the category of all modules, or of one of its subcategories C, is often indicated by the presence of a realization theorem, that is, by the fact that any reasonable algebra is isomorphic to the endomorphism algebra of a module from C. This results in the existence of pathological direct sum decompositions, and these are generally viewed as obstacles to classification. In order to overcome this problem, the approximation theory of modules has been developed. The idea here is to select suitable subcategories C whose modules can be classified, and then to approximate arbitrary modules by those from C. These approximations are neither unique nor functorial in general, but there is a rich supply available appropriate to the requirements of various particular applications. The authors bring the two theories together. The first volume, Approximations, sets the scene in Part I by introducing the main classes of modules relevant here: the S-complete, pure-injective, Mittag-Leffler, and slender modules. Parts II and III of the first volume develop the key methods of approximation theory. Some of the recent applications to the structure of modules are also presented here, notably for tilting, cotilting, Baer, and Mittag-Leffler modules. In the second volume, Predictions, further basic instruments are introduced: the prediction principles, and their applications to proving realization theorems. Moreover, tools are developed there for answering problems motivated in algebraic topology. The authors concentrate on the impossibility of classification for modules over general rings. The wild character of many categories C of modules is documented here by the realization theorems that represent critical R-algebras over commutative rings R as endomorphism algebras of modules from C. The monograph starts from basic facts and gradually develops the theory towards its present frontiers. It is suitable both for graduate students interested in algebra and for experts in module and representation theory.