On signs of Fourier coefficients on GL(n)
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909712361979904 |
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| author | Lesesvre, Didier Ng, Ming Ho Wang, Yingnan |
| author_facet | Lesesvre, Didier Ng, Ming Ho Wang, Yingnan |
| contents | We study statistical properties of Fourier coefficients of automorphic forms on GL(n). For most Hecke-Maass cusp forms, we give the asymptotic number of nonvanishing coefficients, show that there is a positive proportion of sign changes among them, when these are real, and describe the asymptotic density of these signs. We generalize the results by Jääsaari obtained in the case of self-dual forms of GL(3) and our method moreover circumvents the assumption of the Generalized Ramanujan Conjecture. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2507_22718 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On signs of Fourier coefficients on GL(n) Lesesvre, Didier Ng, Ming Ho Wang, Yingnan Number Theory 11F30, 11N37 We study statistical properties of Fourier coefficients of automorphic forms on GL(n). For most Hecke-Maass cusp forms, we give the asymptotic number of nonvanishing coefficients, show that there is a positive proportion of sign changes among them, when these are real, and describe the asymptotic density of these signs. We generalize the results by Jääsaari obtained in the case of self-dual forms of GL(3) and our method moreover circumvents the assumption of the Generalized Ramanujan Conjecture. |
| title | On signs of Fourier coefficients on GL(n) |
| topic | Number Theory 11F30, 11N37 |
| url | https://arxiv.org/abs/2507.22718 |