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Description
Rational Quadratic FormsThis exploration of quadratic forms over rational numbers and rational integers offers an excellent elementary introduction to many aspects of a classical subject, including recent developments. The author, a Professor Emeritus at Trinity College, University of Cambridge, offers a largely self contained treatment that develops most of the prerequisites. Topics include the theory of quadratic forms over local fields, forms with integral coefficients,
This exploration of quadratic forms over rational numbers and rational integers offers an excellent elementary introduction to many aspects of a classical subject, including recent developments. The author, a Professor Emeritus at Trinity College, University of Cambridge, offers a largely self-contained treatment that develops most of the prerequisites.Topics include the theory of quadratic forms over local fields, forms with integral coefficients, genera and spinor genera, reduction theory for definite forms, and Gauss' composition theory. The final chapter explains how to formulate the proofs in earlier chapters independently of Dirichlet's theorems related to the existence of primes in arithmetic progressions. Specialists will particularly value the several helpful appendixes on class numbers, Siegel's formulas, Tamagawa numbers, and other topics. Each chapter concludes with many exercises and hints, plus notes that include historical remarks and references to the literature.Binding Type: Paperback
Publisher: Dover Publications
Published: 08/08/2008
ISBN: 9780486466705
Pages: 413
Weight: 0.98lbs
Size: 8.49h x 5.47w x 0.88d
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4.2 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
truck bed net
It fits perfectly, just what I expected, good quality and it does the job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
★★★★★ 5
MVP of our Camping Trip
This net is unreal. We went camping and absolutely over filled our truck bed and this held everyone in. We had camping chairs, back packs. Fishing reels and paper towels. All kinds of loose stuff and it all stayed perfectly in place. I have been pleasantly surprised and would recommend this for anyone who wants a little security when they have anything in the bed! This totally have me peace of mind on our trip. I expected it to rip the way I was abusing it but nothing! It's still perfect. The hooks are well made and the netting is super strong. It stretches easily but holds stuff down tight. It's truly awesome.
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Reviewed in the United States on August 22, 2025
★★★★★ 5
Surprisingly versatile net — works great for storage and organization
This cargo net turned out to be far more versatile than I expected. While it’s marketed for a truck bed, I used it as a vertical storage solution and it worked incredibly well.
The net has enough stretch to securely hold shoes, bedding, and soft items while still keeping everything visible and accessible. The attachment points made it easy to customize the fit, and it’s held up well without sagging.
If you need a flexible way to contain loose items and maximize space, this net can be adapted for more than just vehicle use. It’s a simple product, but very effective.
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Reviewed in the United States on December 17, 2025
★★★★★ 5
Great cargo net!
I have been using this cargo net extensively for the last 8 months and it is fantastic! We are gradually moving to a new home 3 hours away, so I use this every single trip (at least 20 so far). It has performed flawlessly-maintains its shape, no defects, and is a critical part of our move.
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Reviewed in the United States on December 29, 2025
★★★★★ 4
Caribeners help keep it tight
It's nice serves the purpose the caribeners are ok nothing special but for my needs it's worth the money
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Reviewed in the United States on September 13, 2025
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