Free Rings and Their Relations

Free Rings and Their Relations PDF Author: Paul Moritz Cohn
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 372

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Free Rings and Their Relations

Free Rings and Their Relations PDF Author: Paul Moritz Cohn
Publisher:
ISBN:
Category : Associative rings
Languages : en
Pages : 632

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Book Description


Free Rings and Their Relations

Free Rings and Their Relations PDF Author: Paul Moritz Cohn
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 372

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Book Description


Basic Algebra

Basic Algebra PDF Author: P.M. Cohn
Publisher: Springer Science & Business Media
ISBN: 0857294288
Category : Mathematics
Languages : en
Pages : 470

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Book Description
This is the first volume of a revised edition of P.M. Cohn's classic three-volume text Algebra, widely regarded as one of the most outstanding introductory algebra textbooks. This volume covers the important results of algebra. Readers should have some knowledge of linear algebra, groups and fields, although all the essential facts and definitions are recalled.

Skew Fields

Skew Fields PDF Author: Paul Moritz Cohn
Publisher: Cambridge University Press
ISBN: 0521432170
Category : Mathematics
Languages : en
Pages : 522

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Book Description
Non-commutative fields (also called skew fields or division rings) have not been studied as thoroughly as their commutative counterparts and most accounts have hitherto been confined to division algebras, that is skew fields finite-dimensional over their centre. Based on the author's LMS lecture note volume Skew Field Constructions, the present work offers a comprehensive account of skew fields. The axiomatic foundation and a precise description of the embedding problem are followed by an account of algebraic and topological construction methods, in particular, the author's general embedding theory is presented with full proofs, leading to the construction of skew fields. The powerful coproduct theorems of G. M. Bergman are proved here as well as the properties of the matrix reduction functor, a useful but little-known construction providing a source of examples and counter-examples. The construction and basic properties of existentially closed skew fields are given, leading to an example of a model class with an infinite forcing companion which is not axiomatizable. The treatment of equations over skew fields has been simplified and extended by the use of matrix methods, and the beginnings of non-commutative algebraic geometry are presented, with a precise account of the problems that need to be overcome for a satisfactory theory. A separate chapter describes valuations and orderings on skew fields, with a construction applicable to free fields. Numerous exercises test the reader's understanding, presenting further aspects and open problems in concise form, and notes and comments at the ends of chapters provide historical background.

Handbook of Algebra

Handbook of Algebra PDF Author:
Publisher: Elsevier
ISBN: 0080532950
Category : Mathematics
Languages : en
Pages : 936

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Book Description
Handbook of Algebra defines algebra as consisting of many different ideas, concepts and results. Even the nonspecialist is likely to encounter most of these, either somewhere in the literature, disguised as a definition or a theorem or to hear about them and feel the need for more information. Each chapter of the book combines some of the features of both a graduate-level textbook and a research-level survey. This book is divided into eight sections. Section 1A focuses on linear algebra and discusses such concepts as matrix functions and equations and random matrices. Section 1B cover linear dependence and discusses matroids. Section 1D focuses on fields, Galois Theory, and algebraic number theory. Section 1F tackles generalizations of fields and related objects. Section 2A focuses on category theory, including the topos theory and categorical structures. Section 2B discusses homological algebra, cohomology, and cohomological methods in algebra. Section 3A focuses on commutative rings and algebras. Finally, Section 3B focuses on associative rings and algebras. This book will be of interest to mathematicians, logicians, and computer scientists.

Lectures on Modules and Rings

Lectures on Modules and Rings PDF Author: Tsit-Yuen Lam
Publisher: Springer Science & Business Media
ISBN: 1461205255
Category : Mathematics
Languages : en
Pages : 577

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Book Description
This new book can be read independently from the first volume and may be used for lecturing, seminar- and self-study, or for general reference. It focuses more on specific topics in order to introduce readers to a wealth of basic and useful ideas without the hindrance of heavy machinery or undue abstractions. User-friendly with its abundance of examples illustrating the theory at virtually every step, the volume contains a large number of carefully chosen exercises to provide newcomers with practice, while offering a rich additional source of information to experts. A direct approach is used in order to present the material in an efficient and economic way, thereby introducing readers to a considerable amount of interesting ring theory without being dragged through endless preparatory material.

Rings and Geometry

Rings and Geometry PDF Author: R. Kaya
Publisher: Springer Science & Business Media
ISBN: 9400954603
Category : Mathematics
Languages : en
Pages : 567

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Book Description
When looking for applications of ring theory in geometry, one first thinks of algebraic geometry, which sometimes may even be interpreted as the concrete side of commutative algebra. However, this highly de veloped branch of mathematics has been dealt with in a variety of mono graphs, so that - in spite of its technical complexity - it can be regarded as relatively well accessible. While in the last 120 years algebraic geometry has again and again attracted concentrated interes- which right now has reached a peak once more - , the numerous other applications of ring theory in geometry have not been assembled in a textbook and are scattered in many papers throughout the literature, which makes it hard for them to emerge from the shadow of the brilliant theory of algebraic geometry. It is the aim of these proceedings to give a unifying presentation of those geometrical applications of ring theo~y outside of algebraic geometry, and to show that they offer a considerable wealth of beauti ful ideas, too. Furthermore it becomes apparent that there are natural connections to many branches of modern mathematics, e. g. to the theory of (algebraic) groups and of Jordan algebras, and to combinatorics. To make these remarks more precise, we will now give a description of the contents. In the first chapter, an approach towards a theory of non-commutative algebraic geometry is attempted from two different points of view.

Ring Constructions and Applications

Ring Constructions and Applications PDF Author: Andrei V. Kelarev
Publisher: World Scientific
ISBN: 9810247451
Category : Mathematics
Languages : en
Pages : 218

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Book Description
This book contains the definitions of several ring constructions used in various applications. The concept of a groupoid-graded ring includes many of these constructions as special cases and makes it possible to unify the exposition. Recent research results on groupoid-graded rings and more specialized constructions are presented. In addition, there is a chapter containing open problems currently considered in the literature. Ring Constructions and Applications can serve as an excellent introduction for graduate students to many ring constructions as well as to essential basic concepts of group, semigroup and ring theories used in proofs.

An Introduction to Rings and Modules

An Introduction to Rings and Modules PDF Author: A. J. Berrick
Publisher: Cambridge University Press
ISBN: 9780521632744
Category : Mathematics
Languages : en
Pages : 286

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Book Description
This is a concise 2000 introduction at graduate level to ring theory, module theory and number theory.

Free Ideal Rings and Localization in General Rings

Free Ideal Rings and Localization in General Rings PDF Author: P. M. Cohn
Publisher: Cambridge University Press
ISBN: 9780521853378
Category : Mathematics
Languages : en
Pages : 594

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Book Description
Proving that a polynomial ring in one variable over a field is a principal ideal domain can be done by means of the Euclidean algorithm, but this does not extend to more variables. However, if the variables are not allowed to commute, giving a free associative algebra, then there is a generalization, the weak algorithm, which can be used to prove that all one-sided ideals are free. This book presents the theory of free ideal rings (firs) in detail. There is also a full account of localization which is treated for general rings but the features arising in firs are given special attention.