论文标题
第四度的理性功能，将投影线在有限的字段上置于
Rational functions of Degree Four that Permute the Projective Line over a Finite Field
论文作者
论文摘要
最近，在有限字段$ \ bbb f_q $上，第三学位的理性功能$ \ bbb p^1（\ bbb f_q）$是由Ferraguti和Micheli确定的。在本文中，使用不同的方法，我们确定了四个度量的所有合理功能，该功能是输入$ \ bbb p^1（\ bbb f_q）$的所有理性功能。
Recently, rational functions of degree three that permute the projective line $\Bbb P^1(\Bbb F_q)$ over a finite field $ \Bbb F_q$ 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 $\Bbb P^1(\Bbb F_q)$.
