Rational Quadratic Forms PDF Download
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Author | : J. W. S. Cassels |
Publisher | : Courier Dover Publications |
Total Pages | : 429 |
Release | : 2008-08-08 |
Genre | : Mathematics |
ISBN | : 0486466701 |
Download Rational Quadratic Forms Book in PDF, ePub and Kindle
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.
Author | : Keith R. Packard |
Publisher | : |
Total Pages | : 90 |
Release | : 1986 |
Genre | : |
ISBN | : |
Download Rational quadratic forms Book in PDF, ePub and Kindle
Author | : Burton W Jones |
Publisher | : American Mathematical Soc. |
Total Pages | : 212 |
Release | : 1950-12-31 |
Genre | : Forms, Binary |
ISBN | : 1614440107 |
Download The Arithmetic Theory of Quadratic Forms Book in PDF, ePub and Kindle
This monograph presents the central ideas of the arithmetic theory of quadratic forms in self-contained form, assuming only knowledge of the fundamentals of matric theory and the theory of numbers. Pertinent concepts of p -adic numbers and quadratic ideals are introduced. It would have been possible to avoid these concepts, but the theory gains elegance as well as breadth by the introduction of such relationships. Some results, and many of the methods, are here presented for the first time. The development begins with the classical theory in the field of reals from the point of view of representation theory; for in these terms, many of the later objectives and methods may be revealed. The successive chapters gradually narrow the fields and rings until one has the tools at hand to deal with the classical problems in the ring of rational integers. The analytic theory of quadratic forms is not dealt with because of the delicate analysis involved. However, some of the more important results are stated and references are given.
Author | : W. Scharlau |
Publisher | : Springer Science & Business Media |
Total Pages | : 431 |
Release | : 2012-12-06 |
Genre | : Mathematics |
ISBN | : 3642699715 |
Download Quadratic and Hermitian Forms Book in PDF, ePub and Kindle
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.
Author | : Natalie M. Aucutt |
Publisher | : |
Total Pages | : 98 |
Release | : 1992 |
Genre | : Forms, Quadratic |
ISBN | : |
Download Classification of Rational Quadratic Forms Over Local and Global Fields Book in PDF, ePub and Kindle
Author | : John Horton Conway |
Publisher | : Cambridge University Press |
Total Pages | : 180 |
Release | : 1997 |
Genre | : Mathematics |
ISBN | : 9780883850305 |
Download The Sensual (Quadratic) Form Book in PDF, ePub and Kindle
Quadratic forms are presented in a pictorial way, elucidating many topics in algebra, number theory and geometry.
Author | : Albrecht Pfister |
Publisher | : Cambridge University Press |
Total Pages | : 191 |
Release | : 1995-09-28 |
Genre | : Mathematics |
ISBN | : 0521467551 |
Download Quadratic Forms with Applications to Algebraic Geometry and Topology Book in PDF, ePub and Kindle
A gem of a book bringing together 30 years worth of results that are certain to interest anyone whose research touches on quadratic forms.
Author | : Duncan A. Buell |
Publisher | : Springer Science & Business Media |
Total Pages | : 249 |
Release | : 2012-12-06 |
Genre | : Mathematics |
ISBN | : 1461245427 |
Download Binary Quadratic Forms Book in PDF, ePub and Kindle
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.
Author | : Richard S. Elman |
Publisher | : American Mathematical Soc. |
Total Pages | : 456 |
Release | : 2008-07-15 |
Genre | : Mathematics |
ISBN | : 9780821873229 |
Download The Algebraic and Geometric Theory of Quadratic Forms Book in PDF, ePub and Kindle
This book is a comprehensive study of the algebraic theory of quadratic forms, from classical theory to recent developments, including results and proofs that have never been published. The book is written from the viewpoint of algebraic geometry and includes the theory of quadratic forms over fields of characteristic two, with proofs that are characteristic independent whenever possible. For some results both classical and geometric proofs are given. Part I includes classical algebraic theory of quadratic and bilinear forms and answers many questions that have been raised in the early stages of the development of the theory. Assuming only a basic course in algebraic geometry, Part II presents the necessary additional topics from algebraic geometry including the theory of Chow groups, Chow motives, and Steenrod operations. These topics are used in Part III to develop a modern geometric theory of quadratic forms.
Author | : O. Taussky |
Publisher | : CRC Press |
Total Pages | : 156 |
Release | : 2020-12-18 |
Genre | : Mathematics |
ISBN | : 1000153355 |
Download Ternary Quadratic Forms and Norms Book in PDF, ePub and Kindle
This book covers topics including the Redei-Reichardt theorem, automorphs of ternary quadratic forms, facts concerning rational matrices leading to integral ternary forms representing zero, characteristics polynomials of symmetric matrices, and Gauss' theory of ternary quadratic forms.