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Spectral Multiplicity for Maaß Newforms ...
Humphries, Peter...
Spectral Multiplicity for Maaß Newforms of Non-Squarefree Level by Humphries, Peter ( Author )
N.A
24-02-2015
We show that if a positive integer q has s(q) odd prime divisors p for which p2 divides q, then a positive proportion of the Laplacian eigenvalues of Maass newforms of weight 0, level q, and principal character occur with multiplicity at least 2s(q). Consequently, the new part of the cuspidal spectrum of the Laplacian on Γ0(q)∖H cannot be simple for any odd non-squarefree integer q. This generalises work of Stromberg, who proved this for q=9 by different methods.
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Article
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36.88 KB
English
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MYR 0.01
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https://arxiv.org/abs/1502.06885
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