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Binary Quadratic Forms

von Duncan A. Buell
Softcover - 9781461288701
160,49 €
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Hardcover - 9780387970370
160,49 €

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Weitere Formate

Hardcover - 9780387970370
160,49 €

Beschreibung

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 quadraticforms 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.

Classical Theory and Modern Computations

Classical Theory and Modern Computations

Details

Verlag Springer US
Ersterscheinung 26. September 2011
Maße 23.5 cm x 15.5 cm
Gewicht 400 Gramm
Format Softcover
ISBN-13 9781461288701
Seiten 248

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