On an analogue of Selbergโs eigenvalue conjecture for $\text {SL}_3(\mathbf {Z})$
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- by Sultan Catto, Jonathan Huntley, Jay Jorgenson and David Tepper PDF
- Proc. Amer. Math. Soc. 126 (1998), 3455-3459 Request permission
Abstract:
Let $\mathcal {H}$ be the homogeneous space associated to the group $\text {PGL}_{3}(\mathbf {R})$. Let $X = \Gamma {\backslash \mathcal {H}}$ where $\Gamma = \text {SL}_{3}(\mathbf {Z})$ and consider the first nontrivial eigenvalue $\lambda _{1}$ of the Laplacian on $L^{2}(X)$. Using geometric considerations, we prove the inequality $\lambda _{1} > 3\pi ^{2}/10$. Since the continuous spectrum is represented by the band $[1,\infty )$, our bound on $\lambda _{1}$ can be viewed as an analogue of Selbergโs eigenvalue conjecture for quotients of the hyperbolic half space.References
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Additional Information
- Sultan Catto
- Affiliation: The Graduate School and Baruch College, The City University of New York, New York, New York 10010 and Department of Physics, The Rockefeller University, 1230 York Avenue, New York, New York 10021-6339
- Jonathan Huntley
- Affiliation: Department of Mathematics, Baruch College CUNY, 17 Lexington Avenue, New York, New York 10010
- Jay Jorgenson
- Affiliation: School of Mathematics, Institute for Advanced Study, Princeton, New Jersey 08540
- Address at time of publication: Department of Mathematics, Oklahoma State University, Stillwater, Oklahoma 74078
- MR Author ID: 292611
- Email: jjorgen@littlewood.math.okstate.edu
- Received by editor(s): January 28, 1997
- Additional Notes: The first named author acknowledges support from DOE grants DE-AC-0276-ER3074 and 3075 and PSC-CUNY Research Award No. 9203393.
The second named author acknowledges support from several PSC-CUNY grants. The third named author acknowledges support from NSF grant DMS-93-07023 and from the Sloan Foundation. - Communicated by: Dennis A. Hejhal
- © Copyright 1998 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 126 (1998), 3455-3459
- MSC (1991): Primary 11F55; Secondary 22E40, 11F72
- DOI: https://doi.org/10.1090/S0002-9939-98-04831-X
- MathSciNet review: 1600116