Abstract
In this article, we will survey our studies of explicit dimension formulas for Siegel cusp forms of degree two and their applications. After we summarize some known results in Sect. 3, we will explain a new result which was obtained in a joint work with Ibukiyama. It is an explicit dimension formula for Siegel paramodular cusp forms of square-free level. We will discuss its application in Sect. 5.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
H. Aoki, T. Ibukiyama, Simple graded rings of Siegel modular forms, differential operators and Borcherds products. Internat. J. Math. 16, 249–279 (2005)
T. Arakawa, Automorphic forms on quaternion unitary group of degree 2 (in Japanese). Master thesis. University of Tokyo (1975).
T. Arakawa, The dimension of the space of cusp forms on the Siegel upper half plane of degree two related to a quaternion unitary groups. J. Math. Soc. Japan 33, 125–145
U. Christian, Berechnung des Ranges der Schar der Spitzenformen zur Modulgruppe zweiten Grades und Stufe q > 2. J. Reine Angew. Math. 277 (1975) 130–154; Zur Berechnung des Ranges der Schar der Spitzenformen zur Modulgruppe zweiten Grades und Stufe q > 2. J. Reine Angew. Math. 296 (1977) 108–118.
C.H. van Dorp, Generators for a module of vector-valued Siegel modular forms of degree 2. arXiv:1301.2910v1 [math.AG].
M. Eichler,Über die darstellbarkeit von Modulformen durch Theta Reihen. J. Reine Angew. Math. 195, 159–171 (1956)
M. Eichler, Quadratische formen und modulformen. Acta arith. 4, 217–239 (1958)
K. Hashimoto, The dimension of the spaces of cusp forms on Siegel upper half plane of degree two I. J. Fac. Sci. Univ. Tokyo sect. IA Math. 30, 403–488 (1983)
K. Hashimoto, The dimension of the spaces of cusp forms on Siegel upper half plane of degree two II.The \(\mathbb{Q}\)-rank one case. Math. Ann. 266 539–559 (1984)
K. Hashimoto, T. Ibukiyama, On relations of dimensions of automorphic forms of \(Sp(2,\mathbb{R})\) and its compact twist Sp(2) (II), Automorphic forms and number theory. Adv. Stud. Pure Math. 7, 31–102 (1985)
Y. Hirai, On Eisenstein series on quaternion unitary groups of degree 2, J. Math. Soc. Japan 51, 93–128 (1999)
T. Ibukiyama, On relations of dimensions of automorphic forms of \(Sp(2,\mathbb{R})\) and its compact twist Sp(2) (I), Automorphic forms and number theory, Adv. Stud. Pure Math. 7, 7–30 (1985)
T. Ibukiyama, On Siegel modular varieties of level 3. Internat. J. Math. 2, 17–35 (1991)
T. Ibukiyama, Paramodular forms and compact twist, in Automorphic Forms on GSp(4) (Proceedings of the 9th Autumn Workshop on Number Theory; M. Furusawa, ed.) (2007), 37–48.
T. Ibukiyama, F. Onodera, On the graded ring of Modular forms of the Siegel paramodular group of level 2. Abh. Math. Sem. Univ. Hamburg 67, 297–305 (1997)
T. Ibukiyama, Dimension Formulas of Siegel Modular Forms of Weight 3 and Supersingular Abelian Surfaces (Proceedings of the 4-th Spring Conference), 39–60 (2007)
T. Ibukiyama, Vector valued Siegel modular forms of symmetric tensor weight of small degrees, Comment. Math. Univ. St. Pauli 61, 51–75 (2012)
Y. Ihara, On certain arithmetical Dirichlet series. J. Math. Soc. Japan, 16, 214–225 (1964)
T. Ibukiyama, N.-P. Skoruppa, A vanishing theorem for Siegel modular forms of weight one. Abh. Math. Sem. Univ. Hamburg 77, 229–235 (2007)
J. Igusa, On Siegel modular forms of genus two II. Amer. J. Math. 86, 392–412 (1964)
H. Jacquet, R.P. Langlands, Automorphic Forms on GL(2), Lecture Notes in Mathematics, vol. 260 (Springer, NewYork, 1972).
H. Kitayama, An explicit dimension formula for Siegel cusp forms with respect to the non-split symplectic groups. J. Math. Soc. Japan 63, 1263–1310 (2011)
H. Kitayama, On the graded ring of Siegel modular forms of degree two with respect to a non-split symplectic group. Internat. J. Math. 23 (2012).
T. Kiyuna, Vector-valued Siegel modular forms of weight detk ⊗  Sym(8), preprint (2012).
R.P. Langlands, Problems in the Theory of Automorphic Forms, Lecture Notes in Mathematics, vol. 170 (Springer, NewYork, 1970) pp. 18–61.
Y. Morita, An explicit formula for the dimension of spaces of Siegel modular forms of degree two. J. Fac. Sci. Univ. Tokyo Sect. IA Math. 21, 167–248 (1974)
V. Platonov, A. Rapinchuk, Algebraic Groups and Number Theory (Academic Press, 1994)
C. Poor, D. Yuen, Dimensions of cusp forms for \(\Gamma _{0}(p)\) in degree two and small weights. Abh. Math. Sem. Univ. Hamburg 77, 185–222 (2007)
C. Poor and D. Yuen, Paramodular cusp forms. arXiv:0912.0049v1. (2009)
T. Satoh, On certain vector valued Siegel modular forms of degree two, Math. Ann. 274, 335–352 (1986)
G. Shimura,Arithmetic of alternating forms and quaternion hermitian forms. J. Math. Soc. Japan 15, 33–65 (1963)
T. Sugano, On holomorphic cusp forms on quaternion unitary groups of degree 2, J. Fac. Sci. Univ. Tokyo Sect. IA Math. 31, 521–568 (1984)
R. Tsushima, On the spaces of Siegel cusp forms of degree two. Amer. J. Math. 65, 843–885 (1982)
R. Tsushima, An explicit dimension formula for the spaces of generalized automorphic forms with respect to \(Sp(2;\mathbb{Z})\). Proc. Japan Acad. Ser. A 59, 139–142 (1983)
R. Tsushima, Dimension formula for the spaces of Siegel cusp forms and a certain exponential sum. Mem. Inst. Sci. Tech. Meiji Univ. 36, 1–56 (1997) http://www.math.meiji.ac.jp/~tsushima.
S. Wakatsuki, Dimension formulas for spaces of vector-valued Siegel cusp forms of degree two. J. Number Theory 132, 200–253 (2012)
S. Wakatsuki, Multiplicity formulas for discrete series representations in \(L^{2}(\Gamma \setminus Sp(2;\mathbb{R}))\), J. Number Theory 133, 3394–3425 (2013)
H. Yamaguchi, The parabolic contribution to the dimension of the space of cusp forms on Siegel space of degree two, unpublished (1976).
T. Yamazaki, On Siegel modular forms of degree two. Amer. J. Math. 98, 39–53 (1976)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Kitayama, H. (2014). On Explicit Dimension Formulas for Spaces of Siegel Cusp Forms of Degree Two and Their Applications. In: Heim, B., Al-Baali, M., Ibukiyama, T., Rupp, F. (eds) Automorphic Forms. Springer Proceedings in Mathematics & Statistics, vol 115. Springer, Cham. https://doi.org/10.1007/978-3-319-11352-4_10
Download citation
DOI: https://doi.org/10.1007/978-3-319-11352-4_10
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-11351-7
Online ISBN: 978-3-319-11352-4
eBook Packages: Mathematics and StatisticsMathematics and Statistics (R0)