Variations of Lehmer's Conjecture for Ramanujan's tau-function
Variations of Lehmer's Conjecture for Ramanujan's tau-function
复制标题
拉马努金 tau 函数的莱默猜想的变体
DOI:
10.1016/j.jnt.2020.04.009
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发表时间:
2020
影响因子:
0.7
通讯作者:
Ono, Ken
中科院分区:
文献类型:
--
作者:
Balakrishnan, Jennifer S.;Craig, William;Ono, Ken
We consider natural variants of Lehmer's unresolved conjecture that Ramanujan's tau-function never vanishes. Namely, for n> 1 we prove that τ (n)∉{±1,±3,±5,±7,±691}. This result is an example of general theorems (see Theorems 1.2 and 1.3 of [2]) for newforms with trivial mod 2 residual Galois representation. Ramanujan's well-known congruences for τ (n) allow for the simplified proof in these special cases. We make use of the theory of Lucas sequences, the Chabauty–Coleman method for hyperelliptic curves, and facts about certain Thue equations.
DOI:
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发表时间:
1993
期刊:
影响因子:
--
作者:
J. Cohn
通讯作者:
J. Cohn
影响因子:
1.4
作者:
Calegari, Frank;Talebizadeh Sardari, Naser
通讯作者:
Talebizadeh Sardari, Naser