Pub. Date:
American Mathematical Society
The Sensual (quadratic) Form

The Sensual (quadratic) Form

by John Horton Conway, Francis Y. C. Fung


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Product Details

ISBN-13: 9780883850404
Publisher: American Mathematical Society
Publication date: 12/31/1997
Series: Carus Mathematical Monographs Series , #26
Pages: 152
Product dimensions: 5.50(w) x 7.90(h) x 0.40(d)

Table of Contents

Preface; 1. The first lecture: can you see the values of 2x2 + 6xy – 5y2?; 2. Afterthoughts: PSL2(Z) and Farey functions; 3. The second lecture: can you hear the shape of a lattice?; 4. Afterthoughts: Kneser's gluing method – unimodular lattices; 5. The third lecture: ... and can you feel its form?; 6. Afterthoughts: feeling the form of a four dimensional lattice; 7. The fourth lecture: the primary fragrances; 8. Afterthought: more about the invariants – p-adic numbers; 9. Postscript: a taste of number theory; Bibliography.

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