Quadratic Forms and Relative Quadratic Extensions

Quadratic Forms and Relative Quadratic Extensions PDF Author: Michael William Mastropietro
Publisher:
ISBN:
Category :
Languages : en
Pages : 164

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Quadratic Forms and Relative Quadratic Extensions

Quadratic Forms and Relative Quadratic Extensions PDF Author: Michael William Mastropietro
Publisher:
ISBN:
Category :
Languages : en
Pages : 164

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Book Description


Quadratic and Hermitian Forms

Quadratic and Hermitian Forms PDF Author: McMaster University
Publisher: American Mathematical Soc.
ISBN: 9780821860083
Category : Mathematics
Languages : en
Pages : 362

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Book Description
Contains the proceedings of the 1983 Seminar on Quadratic and Hermitian Forms held at McMaster University, July 1983. Between 1945 and 1965, most of the work in quadratic (and hermitian) forms took place in arithmetic theory (M Eichler, M Kneser, O T O'Meara).

Introduction to Quadratic Forms over Fields

Introduction to Quadratic Forms over Fields PDF Author: T.Y. Lam
Publisher: American Mathematical Soc.
ISBN: 9780821872413
Category : Forms, Quadratic
Languages : en
Pages : 578

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Book Description
This new version of the author's prizewinning book, Algebraic Theory of Quadratic Forms (W. A. Benjamin, Inc., 1973), gives a modern and self-contained introduction to the theory of quadratic forms over fields of characteristic different from two. Starting with few prerequisites beyond linear algebra, the author charts an expert course from Witt's classical theory of quadratic forms, quaternion and Clifford algebras, Artin-Schreier theory of formally real fields, and structural theorems on Witt rings, to the theory of Pfister forms, function fields, and field invariants. These main developments are seamlessly interwoven with excursions into Brauer-Wall groups, local and global fields, trace forms, Galois theory, and elementary algebraic K-theory, to create a uniquely original treatment of quadratic form theory over fields. Two new chapters totaling more than 100 pages have been added to the earlier incarnation of this book to take into account some of the newer results and more recent viewpoints in the area. As is characteristic of this author's expository style, the presentation of the main material in this book is interspersed with a copious number of carefully chosen examples to illustrate the general theory. This feature, together with a rich stock of some 280 exercises for the thirteen chapters, greatly enhances the pedagogical value of this book, both as a graduate text and as a reference work for researchers in algebra, number theory, algebraic geometry, algebraic topology, and geometric topology.

Quadratic and Hermitian Forms

Quadratic and Hermitian Forms PDF Author: W. Scharlau
Publisher: Springer Science & Business Media
ISBN: 3642699715
Category : Mathematics
Languages : en
Pages : 431

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Book Description
For a long time - at least from Fermat to Minkowski - the theory of quadratic forms was a part of number theory. Much of the best work of the great number theorists of the eighteenth and nineteenth century was concerned with problems about quadratic forms. On the basis of their work, Minkowski, Siegel, Hasse, Eichler and many others crea ted the impressive "arithmetic" theory of quadratic forms, which has been the object of the well-known books by Bachmann (1898/1923), Eichler (1952), and O'Meara (1963). Parallel to this development the ideas of abstract algebra and abstract linear algebra introduced by Dedekind, Frobenius, E. Noether and Artin led to today's structural mathematics with its emphasis on classification problems and general structure theorems. On the basis of both - the number theory of quadratic forms and the ideas of modern algebra - Witt opened, in 1937, a new chapter in the theory of quadratic forms. His most fruitful idea was to consider not single "individual" quadratic forms but rather the entity of all forms over a fixed ground field and to construct from this an algebra ic object. This object - the Witt ring - then became the principal object of the entire theory. Thirty years later Pfister demonstrated the significance of this approach by his celebrated structure theorems.

Rational Quadratic Forms

Rational Quadratic Forms PDF Author: J. W. S. Cassels
Publisher: Courier Dover Publications
ISBN: 0486466701
Category : Mathematics
Languages : en
Pages : 429

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Book Description
Exploration of quadratic forms over rational numbers and rational integers offers elementary introduction. Covers quadratic forms over local fields, forms with integral coefficients, reduction theory for definite forms, more. 1968 edition.

Class Number Parity

Class Number Parity PDF Author: Pierre E. Conner
Publisher: World Scientific
ISBN: 9789971506698
Category : Mathematics
Languages : en
Pages : 250

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Book Description
This book deals with classical questions of Algebraic Number Theory concerning the interplay between units, ideal class groups, and ramification for relative extensions of number fields. It includes a large collection of fundamental classical examples, dealing in particular with relative quadratic extensions as well as relative cyclic extensions of odd prime degree. The unified approach is exclusively algebraic in nature.

Quadratic Forms--Algebra, Arithmetic, and Geometry

Quadratic Forms--Algebra, Arithmetic, and Geometry PDF Author: Ricardo Baeza
Publisher: American Mathematical Soc.
ISBN: 082185819X
Category : Forms, Quadratic
Languages : en
Pages : 424

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Book Description


Relative Integral Bases of Quadratic Extensions of Quadratic Number Fields

Relative Integral Bases of Quadratic Extensions of Quadratic Number Fields PDF Author: Jacqueline Palermo
Publisher:
ISBN:
Category : Equations, Quadratic
Languages : en
Pages : 42

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Quadratic Forms and Their Applications

Quadratic Forms and Their Applications PDF Author: Eva Bayer-Fluckiger
Publisher: American Mathematical Soc.
ISBN: 0821827790
Category : Mathematics
Languages : en
Pages : 330

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Book Description
This volume outlines the proceedings of the conference on "Quadratic Forms and Their Applications" held at University College Dublin. It includes survey articles and research papers ranging from applications in topology and geometry to the algebraic theory of quadratic forms and its history. Various aspects of the use of quadratic forms in algebra, analysis, topology, geometry, and number theory are addressed. Special features include the first published proof of the Conway-Schneeberger Fifteen Theorem on integer-valued quadratic forms and the first English-language biography of Ernst Witt, founder of the theory of quadratic forms.

Binary Quadratic Forms

Binary Quadratic Forms PDF Author: Duncan A. Buell
Publisher: Springer Science & Business Media
ISBN: 1461245427
Category : Mathematics
Languages : en
Pages : 249

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Book Description
The first coherent exposition of the theory of binary quadratic forms was given by Gauss in the Disqnisitiones Arithmeticae. During the nine teenth century, as the theory of ideals and the rudiments of algebraic number theory were developed, it became clear that this theory of bi nary quadratic forms, so elementary and computationally explicit, was indeed just a special case of a much more elega,nt and abstract theory which, unfortunately, is not computationally explicit. In recent years the original theory has been laid aside. Gauss's proofs, which involved brute force computations that can be done in what is essentially a two dimensional vector space, have been dropped in favor of n-dimensional arguments which prove the general theorems of algebraic number the ory. In consequence, this elegant, yet pleasantly simple, theory has been neglected even as some of its results have become extremely useful in certain computations. I find this neglect unfortunate, because binary quadratic forms have two distinct attractions. First, the subject involves explicit computa tion and many of the computer programs can be quite simple. The use of computers in experimenting with examples is both meaningful and enjoyable; one can actually discover interesting results by com puting examples, noticing patterns in the "data," and then proving that the patterns result from the conclusion of some provable theorem.