Hostname: page-component-848d4c4894-x5gtn Total loading time: 0 Render date: 2024-05-24T05:02:31.698Z Has data issue: false hasContentIssue false

On Dirichlet series whose coefficients are class numbers of binary quadratic forms*

Published online by Cambridge University Press:  22 January 2016

Boris A. Datskovsky*
Affiliation:
Department of Mathematics, Temple University, Philadelphia, PA 19122, USA
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.

For an integer d > 0 (resp. d < 0) let hd denote the number of Sl2(Z)-equivalence classes of primitive (resp. primitive positive-definite) integral binary quadratic forms of discriminant d. For where t and u are the smallest positive integral solutions of the equation t2du2 = 4 if d is a non-square and εd = 1 if d is a square.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1996

Footnotes

*

Research supported by SFB-170, Göttingen, Germany and by a Fulbright fellowship

References

[ 1 ] Cohen, H., Sums involving the values at negative integers of L-functions of quadratic characters, Math. Ann., 217, (1975), 271285.Google Scholar
[ 2 ] Datskovsky, B., On zeta functions associated with the space of binary cubic forms with coefficients in a function field, Ph. D. thesis, Harvard University, 1984.Google Scholar
[ 3 ] Datskovsky, B., A mean-value theorem for class numbers of quadratic extensions, in A Tribute to Emil Grosswald: Number Theory and Related Analysis, Contemporary Mathematics, vol. 143, Amer. Math. Soc, 1993, 179242.Google Scholar
[ 4 ] Datskovsky, B. and Wright, D. J., The adelic zeta function associated with the space of binary cubic forms, II; Local theory, J. Reine Angew. Math., 367, (1986), 2775.Google Scholar
[ 5 ] Igusa, J.-I., On functional equations of complex powers, Invent Math., 85, (1986), 129.Google Scholar
[ 6 ] Muller, I., Décomposition orbitale des espaces préhomogènes régulieres de type parabolique commutatif et application, C. R. Acad. Sc. Paris, 303 (1986), 495498.Google Scholar
[ 7 ] Rallis, S., and Schiffmann, G., Distributions in variantes par le groupe orthogonal, in Analyse Harmonique sur les Groupes de Lie, Lecture Notes in Mathematics 497, Springer-Verlag, Berlin, Heidelberg, New York, 1975, pp. 494642.CrossRefGoogle Scholar
[ 8 ] Saito, H., On L-functions associated with the vector space of binary quadratic forms, Nagoya Math. J., 130 (1993), 140176.CrossRefGoogle Scholar
[ 9 ] Sato, F., On functional equations of zeta distributions, in Automorphic Forms and Geometry of Arithmetic Varieties. Advanced Studies in Pure Mathematics 15, Academic Press, New York, 1989, pp. 465508.Google Scholar
[10] Sato, M. and Shintani, T., On zeta functions associated with prehomogeneous vector spaces, Ann. of Math., 100 (1974), 131170.Google Scholar
[11] Shimura, G., On modular forms of half integral weight, Ann. Math., 97 (1973),440481.CrossRefGoogle Scholar
[12] Shintani, T., On zeta-functions associated with the vector space of quadratic forms, J. Fac. Sci. Univ. Tokyo, Sec. la, 22 (1975), 2566.Google Scholar
[13] Tate, J., Fourier analysis on number fields and Hecke’s zeta functions, in Cassels, J. and Fröhlich, A., Algebraic Number Theory, Academic Press, New York, 1967.Google Scholar
[14] Weil, A., Adeles and Algebraic Groups, Birkhäuser, Boston, 1982.Google Scholar
[15] Weil, A., Basic Number Theory, Springer Verlag, Berlin, Heidelberg, New York, 1974.Google Scholar
[16] Yukie, A., On Shintani zeta function for the space of binary quadratic forms, Math. Ann., 292 (1992), 355374.Google Scholar
[17] Zagier, D., Nombres de classes et formes modulaires de poids 3/2 C. R. Acad. Sc. Paris, 281 (1975), 883886.Google Scholar