Primitive root bias for twin primes II: Schinzel-type theorems for totient quotients and the sum-of-divisors function
Primitive root bias for twin primes II: Schinzel-type theorems for totient quotients and the sum-of-divisors function
复制标题
孪生素数的原根偏差 II:余商和除数和函数的 Schinzel 型定理
DOI:
10.1016/j.jnt.2019.08.003
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发表时间:
2020
影响因子:
0.7
通讯作者:
Udell, Gabe
中科院分区:
文献类型:
--
作者:
Garcia, Stephan Ramon;Luca, Florian;Shi, Kye;Udell, Gabe
Abstract Garcia, Kahoro, and Luca showed that the Bateman–Horn conjecture implies φ (p− 1)⩾ φ (p+ 1) for a majority of twin-primes pairs p, p+ 2 and that the reverse inequality holds for a small positive proportion of the twin primes. That is, p tends to have more primitive roots than does p+ 2. We prove that Dickson's conjecture, which is much weaker than Bateman–Horn, implies that the quotients φ (p+ 1) φ (p− 1), as p, p+ 2 range over the twin primes, are dense in the positive reals. We also establish several Schinzel-type theorems, some of them unconditional, about the behavior of φ (p+ 1) φ (p) and σ (p+ 1) σ (p), in which σ denotes the sum-of-divisors function.
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DOI:
10.1360/ya1973-16-2-157
发表时间:
1973-02
期刊:
--
影响因子:
--
作者:
Jingrun Chen
通讯作者:
Jingrun Chen
DOI:
--
发表时间:
1964
期刊:
影响因子:
--
作者:
A. Makowski;A. Schinzel
通讯作者:
A. Schinzel
DOI:
10.1007/978-1-4612-0759-7
发表时间:
1996
期刊:
2019 International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber, Physical and Social Computing (CPSCom) and IEEE Smart Data (SmartData)
影响因子:
--
作者:
P. Ribenboim
通讯作者:
P. Ribenboim
DOI:
--
发表时间:
1965
期刊:
影响因子:
--
作者:
P. Bateman;R. Horn
通讯作者:
R. Horn
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
S. Garcia;F. Luca;Timothy Schaaff
通讯作者:
Timothy Schaaff