English

Primitive values of quadratic polynomials in a finite field

Number Theory 2024-01-29 v2

Abstract

We prove that for all q>211q>211, there always exists a primitive root gg in the finite field Fq\mathbb{F}_{q} such that Q(g)Q(g) is also a primitive root, where Q(x)=ax2+bx+cQ(x)= ax^2 + bx + c is a quadratic polynomial with a,b,cFqa, b, c\in \mathbb{F}_{q} such that b24ac0b^{2} - 4ac \neq 0.

Keywords

Cite

@article{arxiv.1803.01435,
  title  = {Primitive values of quadratic polynomials in a finite field},
  author = {Andrew R. Booker and Stephen D. Cohen and Nicole Sutherland and Tim Trudgian},
  journal= {arXiv preprint arXiv:1803.01435},
  year   = {2024}
}

Comments

12 pages; code available at https://arxiv.org/src/1803.01435v2/anc/