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Eigenvalues of the Laplacian for Hecke Triangle Groups.

Hejhal, Dennis A.

Eigenvalues of the Laplacian for Hecke Triangle Groups. - 1st ed. - 1 online resource (177 pages) - Memoirs of the American Mathematical Society ; v.97 . - Memoirs of the American Mathematical Society .

Intro -- Table of Contents -- 0. Foreword -- I. Eigenvalues of the Laplacian for Hecke Triangle Groups -- 1. Introduction and preliminary remarks -- 2. The procedure in a nutshell -- 3. Some theoretical difficulties -- 4. Coefficient relations for N = 4 and 6 -- 5. "Odd" eigenvalues for N = 4, 5, 6, 7 -- 6. "Even" eigenvalues for N = 4, 5, 6, 7 -- 7. Some examples -- 8. Some remarks about pseudo cusp forms -- 9. Concluding remarks -- References -- Appendix A -- II. (Reprint of) Eigenvalues of the Laplacian for PSL(2,Z): Some New Results and Computational Techniques -- 1. Introduction -- 2. The basic procedure -- 3. Some informal remarks concerning implementation of the basic procedure -- 4. Further remarks -- 5. The even eigenvalues less than 50 -- 6. The odd eigenvalues less than 50 -- 7. Even eigenvalues around R = 125 -- 8. Even eigenvalues around R = 250 -- 9. Even eigenvalues around R = 500 -- 10. Gaining greater accuracy -- 11. Concluding remarks -- References -- Appendix B.

9781470408954


Selberg trace formula.
Automorphic functions.
Eigenvalues.
Laplacian operator.


Electronic books.

QA3 -- .H454 1992eb

512/.7

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