English

Bounds for the first several prime character nonresidues

Number Theory 2015-08-25 v2

Abstract

Let ε>0\varepsilon > 0. We prove that there are constants m0=m0(ε)m_0=m_0(\varepsilon) and κ=κ(ε)>0\kappa=\kappa(\varepsilon) > 0 for which the following holds: For every integer m>m0m > m_0 and every nontrivial Dirichlet character modulo mm, there are more than mκm^{\kappa} primes m14e+ε\ell \le m^{\frac{1}{4\sqrt{e}}+\varepsilon} with χ(){0,1}\chi(\ell)\notin \{0,1\}. The proof uses the fundamental lemma of the sieve, Norton's refinement of the Burgess bounds, and a result of Tenenbaum on the distribution of smooth numbers satisfying a coprimality condition. For quadratic characters, we demonstrate a somewhat weaker lower bound on the number of primes m14+ϵ\ell \le m^{\frac14+\epsilon} with χ()=1\chi(\ell)=1.

Keywords

Cite

@article{arxiv.1508.05035,
  title  = {Bounds for the first several prime character nonresidues},
  author = {Paul Pollack},
  journal= {arXiv preprint arXiv:1508.05035},
  year   = {2015}
}

Comments

Theorem 1.3 has been removed, as the same result (with the same proof) already appears in work of Aled Walker; see Lemma 9 of http://arxiv.org/abs/1505.03328v3