Partial sums of the Möbius function in arithmetic progressions assuming GRH

On primes in arithmetic progression having a prescribed primitive root. II

Let a and f be coprime positive integers. Let g be an integer. Under the Generalized Riemann Hypothesis (GRH) it follows by a result of H.W. Lenstra that the set of primes p such that p=a(mod f) and g is a primitive root modulo p has a natural density. In this note this density is explicitly evaluated with an Euler product as result.

Fourier优化、最小二次非剩余与算术级数中的最小素数

Fourier optimization, the least quadratic non-residue, and the least prime in an arithmetic progression

本文提出一种Fourier优化框架，在GRH假设下改进了估计模素数的最小二次非剩余和算术级数中最小素数这两个数论经典问题的渐近界。

The distribution of the variance of primes in arithmetic progressions

Hooley conjectured that the variance V(x;q) of the distribution of primes up to x in the arithmetic progressions modulo q is asymptotically x log q, in some unspecified range of q\leq x. On average over 1\leq q \leq Q, this conjecture is known unconditionally in the range x/(log x)^A \leq Q \leq x; this last range can be improved to x^{\frac 12+ε} \leq Q \leq x under the Generalized Riemann Hypothesis (GRH). We argue that Hooley's conjecture should hold down to (loglog x)^{1+o(1)} \leq q \leq x for all values of q, and that this range is best possible. We show under GRH and a linear independen…

The Explicit Sato-Tate Conjecture For Primes In Arithmetic Progressions

Let $τ(n)$ be Ramanujan's tau function, defined by the discriminant modular form \[ Δ(z) = q\prod_{j=1}^{\infty}(1-q^{j})^{24}\ =\ \sum_{n=1}^{\infty}τ(n) q^n \,,q=e^{2πi z} \] (this is the unique holomorphic normalized cuspidal newform of weight 12 and level 1). Lehmer's conjecture asserts that $τ(n)\neq 0$ for all $n\geq 1$; since $τ(n)$ is multiplicative, it suffices to study primes $p$ for which $τ(p)$ might possibly be zero. Assuming standard conjectures for the twisted symmetric power $L$-functions associated to $τ$ (including GRH), we prove that if $x\geq 10^{50}$, then \[ \#\{x < p\leq…

论椭圆曲线在等差数列中素数上约化的非循环性

On the acyclicity of reductions of elliptic curves modulo primes in arithmetic progressions

本文研究椭圆曲线模素数约化群的循环性，刻画了使同余于 $a\bmod n$ 的几乎所有素数对应约化群均非循环的等差数列，并回答了 Akbal 与 Güloğlu 的问题。

短算术级数中的积性函数

Multiplicative functions in short arithmetic progressions

该研究探讨有界积性函数在短算术级数中的和的方差，改进推广了相关经典定理，给出近乎最优的例外模集合，并将结果应用于三素数乘积的Linnik型问题。