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Effective computation of Maass cusp forms

Effective computation of Maass cusp forms We study theoretical and practical aspects of high-precision computation of Maass forms. First, we compute to over 1000 decimal places the Laplacian and Hecke eigenvalues for the first few Maass forms on PSL(2,ℤ)\ℍ. Second, we give an algorithm for rigorously verifying that a proposed eigenvalue together with a proposed set of Fourier coefficients indeed correspond to a true Maass cusp form. We apply this to prove that our values for the first ten eigenvalues on PSL(2,ℤ)\ℍ are correct to at least 100 decimal places. Third, we test some algebraicity properties of the coefficients, among other things giving evidence that the Laplacian and Hecke eigenvalues of Maass forms on PSL(2,ℤ)\ℍ are transcendental. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Mathematics Research Notices Oxford University Press

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References (32)

Publisher
Oxford University Press
Copyright
© Published by Oxford University Press.
ISSN
1073-7928
eISSN
1687-0247
DOI
10.1155/IMRN/2006/71281
Publisher site
See Article on Publisher Site

Abstract

We study theoretical and practical aspects of high-precision computation of Maass forms. First, we compute to over 1000 decimal places the Laplacian and Hecke eigenvalues for the first few Maass forms on PSL(2,ℤ)\ℍ. Second, we give an algorithm for rigorously verifying that a proposed eigenvalue together with a proposed set of Fourier coefficients indeed correspond to a true Maass cusp form. We apply this to prove that our values for the first ten eigenvalues on PSL(2,ℤ)\ℍ are correct to at least 100 decimal places. Third, we test some algebraicity properties of the coefficients, among other things giving evidence that the Laplacian and Hecke eigenvalues of Maass forms on PSL(2,ℤ)\ℍ are transcendental.

Journal

International Mathematics Research NoticesOxford University Press

Published: Jan 1, 2006

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