Rational functions of Degree Four that Permute the Projective Line over a Finite Field
Number Theory
2020-08-18 v2
Abstract
Recently, rational functions of degree three that permute the projective line over a finite field were determined by Ferraguti and Micheli. In the present paper, using a different method, we determine all rational functions of degree four that permute the .
Cite
@article{arxiv.2005.07213,
title = {Rational functions of Degree Four that Permute the Projective Line over a Finite Field},
author = {Xiang-dong Hou},
journal= {arXiv preprint arXiv:2005.07213},
year = {2020}
}
Comments
12 pages. Sporadic PRs with small q's are determines. Typos in v1 are corrected