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Composition of Quadratic Forms: An Algebraic Perspective

In: The Shaping of Arithmetic after C. F. Gauss’s Disquisitiones Arithmeticae

Author

Listed:
  • Della D. Fenster

    (University of Richmond, Department of Mathematics and Computer Science)

  • Joachim Schwermer

    (Universität Wien, Fakultät für Mathematik)

Abstract

4. Conclusion There are many ways to measure the reception — and success — of a text, or, more precisely, the ideas of a text. We have elaborated here, in part, on Martin Kneser’s personal remarks and contributions at Oberwolfach, in June 2001. That Gauss’s question on the composition of forms could lead to the construction of a complex, yet stunningly elegant, algebraic theory of composition for binary quadratic modules over an arbitrary commutative ring with unity certainly testifies — again — to the breadth and depth of Gauss’s original ideas. Hurwitz’s private thoughts on Gauss’s composition of forms at the close of the nineteenth century, Bhargava’s more contemporary results on the arithmetic of number fields and Kneser’s extension of the theory via Clifford algebras provide further evidence of the lasting impact of the Disquisitiones Arithmeticae.

Suggested Citation

  • Della D. Fenster & Joachim Schwermer, 2007. "Composition of Quadratic Forms: An Algebraic Perspective," Springer Books, in: Catherine Goldstein & Norbert Schappacher & Joachim Schwermer (ed.), The Shaping of Arithmetic after C. F. Gauss’s Disquisitiones Arithmeticae, chapter 0, pages 145-158, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-34720-0_5
    DOI: 10.1007/978-3-540-34720-0_5
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