Abstract

Let $f=\sum_{n>o} a(n)q^{n}, a(n)$ real, be an arbitrary nonzero cusp form of even integral weight $k\geq 2$ on $\Gamma_0(N),$ square free $N.$ We obtain an effective bound that the first sign change of $a(n)$ occurs.

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Additional Information

ISSN
1080-6377
Print ISSN
0002-9327
Pages
pp. 517-543
Launched on MUSE
2009-03-20
Open Access
No
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