References
Mathematical Society of Japan,Encyclopedic Dictionary of Mathematics, MIT Press.
G. H. Hardy andE. M. Wright,An Introduction to the Theory of Numbers Oxford University Press.
D. Hejhal, The Selberg Trace Formula for PSL (2,R), II, Lecture Notes in Mathematics 1001.
H. Huber,Über die Darstellungen der Automorphismengruppe einer Riemannschen Fläche in die Eigenräume des Laplace-operators. Comment. Math. Helvetici52, 177–184 (1977).
H. Iwaniec, Character sums and small eigenvalues for Γ0(p), Glasgow Mathematical Journal27, 99–116.
S. Lang,Elliptic Functions, Springer Verlag.
P. Sarnak,Class number of indefinite binary quadratic forms, J. Number Theory15, 229–247.
A. Selberg,On the estimation of Fourier coefficients of modular forms, Proc. Sympos. Pure Math.8, 1–15.
J. P. Serre,Linear Representations of Finite Groups, Springer Verlag.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stopple, J. On small eigenvalues of the Laplacian for Γ0(q)\ℋ. Commentarii Mathematici Helvetici 65, 664–671 (1990). https://doi.org/10.1007/BF02566631
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02566631