Hyperelliptic curves and newform coefficients
Hyperelliptic curves and newform coefficients
复制标题
超椭圆曲线和新形式系数
DOI:
10.1016/j.jnt.2021.02.002
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发表时间:
2021
影响因子:
0.7
通讯作者:
Jain, Vanshika
中科院分区:
文献类型:
--
作者:
Dembner, Spencer;Jain, Vanshika
We study which integers are admissible as Fourier coefficients of even integer weight newforms. In the specific case of the tau-function, we show that for all odd primes ℓ< 100 and all integers m≥ 1, we have τ (n)≠±ℓ,±5 m. For general newforms f with even integer weight 2k and integer coefficients, we prove for most integers j dividing 2 k− 1 and all ordinary primes p that a f (p 2) is never a j-th power. We prove a similar result for a f (p 4), conditional on the Frey-Mazur Conjecture. Our primary method involves relating questions about values of newforms to the existence of perfect powers in certain binary recurrence sequences, and makes use of bounds from the theory of linear forms in logarithms. The method extends without difficulty to a large family of Lebesgue-Nagell equations with fixed exponent. To prove results about general newforms, we also make use of the modular method and Ribet's level-lowering theorem.
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影响因子:
0.7
作者:
Balakrishnan, Jennifer S.;Craig, William;Ono, Ken
通讯作者:
Ono, Ken
DOI:
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发表时间:
1983
期刊:
影响因子:
--
作者:
T. N. Shorey;C. Stewart
通讯作者:
C. Stewart
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. Silliman;Isabel Vogt
通讯作者:
Isabel Vogt
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
K. Ribet
通讯作者:
K. Ribet
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
Y. Bugeaud;K. Gyory
通讯作者:
K. Gyory