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Class Number Formula and an Easy Zeta Function of the Space of Quadratic Forms

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Abstract

In this chapter, as an application of quadratic forms and quadratic fields, we give an explicit formula of some simple zeta functions, related to some so-called prehomogeneous vector spaces. We also prove a class number formula of imaginary quadratic fields. Before that, we review the theory of multiplicative structure of ideals of quadratic field without proof.

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Notes

  1. 1.

    Heinrich Martin Weber (born on May 5, 1842 in Heidelberg, Germany—died on May 17, 1913 in Strasbourg, Germany (now France)).

  2. 2.

    Siméon Denis Poisson (born on June 21, 1781 in Pithiviers, France—died on April 25, 1840 in Sceaux, France).

  3. 3.

    Jean Baptiste Joseph Fourier (born on March 21, 1768 in Auxerre, France—died on May 16, 1830 in Paris, France).

  4. 4.

    August Ferdinand Möbius (born on November 17, 1790 in Schulpforta, Saxony (now Germany)—died on September 26, 1868 in Leipzig, Germany).

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Ibukiyama, T., Kaneko, M. (2014). Class Number Formula and an Easy Zeta Function of the Space of Quadratic Forms. In: Bernoulli Numbers and Zeta Functions. Springer Monographs in Mathematics. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54919-2_10

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