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Rational and Nearly Rational Varieties
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  • Page extent: 242 pages
  • Size: 228 x 152 mm
  • Weight: 0.58 kg

Library of Congress

  • Dewey number: 512
  • Dewey version: 22
  • LC Classification: QA251 .K638 2004
  • LC Subject headings:
    • Varieties (Universal algebra)

Library of Congress Record


 (ISBN-13: 9780521832076 | ISBN-10: 0521832071)

The most basic algebraic varieties are the projective spaces, and rational varieties are their closest relatives. In many applications where algebraic varieties appear in mathematics and the sciences, we see rational ones emerging as the most interesting examples. The authors have given an elementary treatment of rationality questions using a mix of classical and modern methods. Arising from a summer school course taught by János Kollár, this book develops the modern theory of rational and nearly rational varieties at a level that will particularly suit graduate students. There are numerous examples and exercises, all of which are accompanied by fully worked out solutions, that will make this book ideal as the basis of a graduate course. It will act as a valuable reference for researchers whilst helping graduate students to reach the point where they can begin to tackle contemporary research problems.

• Over one hundred exercises with fully worked out solutions • First elementary treatment of rationality questions • Mixture of classical and modern methods


Introduction; 1. Examples of rational varieties; 2. Cubic surfaces; 3. Rational surfaces; 4. Nonrationality and reduction modulo p; 5. The Noether-Fano method; 6. Singularities of pairs; 7. Solutions to exercises.


'… a beautiful and ample introduction to the interesting topic of rational and 'nearly rational' varieties and it will be a valuable reference for a wide audience.' Zentralblatt MATH

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