Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-22T06:45:43.265Z Has data issue: false hasContentIssue false

Local densities of quadratic forms and Fourier coefficients of Eisenstein series

Published online by Cambridge University Press:  22 January 2016

Yoshiyuki Kitaoka*
Affiliation:
Department of Mathematics, Nagoya University, Chikusa-ku, Nagoya 464, Japan
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Local densities of quadratic forms are important invariants in the theory of quadratic forms and they appear in Fourier coefficients of Eisenstein series. But it is not easy to evaluate them. To study their properties, it is desirable to look for relations among them, and it is known that there are many relations [3], but they are not concise. We consider a different kind of relations here and improve a result of Zharkovskaja [8, 9] in the case of Eisenstein series as an application.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1986

References

[1] Andrianov, A. N., Spherical functions for GLn over local fields, and summation of Hecke series, Math. USSR Sbornik, 12 (1970), 429452.Google Scholar
[2] Kaufhold, G., Dirichletsche Reihe mit Funktionalgleichung in der Theorie der Modulfunktion 2. Grades, Math. Ann., 137 (1959), 454476.Google Scholar
[3] Kitaoka, Y., A note on local densities of quadratic forms, Nagoya Math. J., 92 (1983), 145152.Google Scholar
[4] Kitaoka, Y., Dirichlet series in the theory of Siegel modular forms, Nagoya Math. J., 95 (1984), 7384.Google Scholar
[5] Kitaoka, Y., Fourier coefficients of Eisenstein series of degree 3, Proc. Japan Acad., 60 (1984), 259261.Google Scholar
[6] Maaβ, H., Die Fourierkoeffizienten der Eisensteinreihen zweiten Grades, Mat.-Fys. Medd. Danske Vid. Selsk., 34 (1964), no. 7.Google Scholar
[7] Siegel, C. L., On the theory of indefinite quadratic forms, Ann. Math. 45 (1944), 577622.CrossRefGoogle Scholar
[8] Zharkovskaja, N. A., The Siegel operator and Hecke operators, Functional anal. Appl., 8 (1974), 113120.Google Scholar
[9] Zharkovskaja, N. A., On the connection of the eigenvalues of Hecke operators and the Fourier coefficients of eigenf unctions for Siegel’s modular forms of genus n , Math. USSR Sbornik, 25 (1975), 549557.Google Scholar