The first and second moments of reversed Dickson polynomials over finite fields

The first and second moments of reversed Dickson polynomials over finite fields
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有限域上逆迪克森多项式的一阶矩和二阶矩

DOI:
10.1016/j.jnt.2017.10.021
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发表时间:
2017-11
影响因子:
0.7
通讯作者:
Hong Shaofang
Hong Shaofang
中科院分区:
数学3区
文献类型:
--
作者:
Cheng Kaimin;Hong Shaofang

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设n和k为非负整数。2010年,Hou和Ly计算了第一类n阶逆Dickson多项式的一阶和二阶矩。2016年,Hong,Qin和Zhao给出了第二类n阶逆Dickson多项式第一阶矩的递推公式。本文介绍了一种研究第(k+ 1)类逆Dickson多项式矩的新方法.实际上,我们首先给出了著名的Lucas同余的一个推广,然后研究了一些二元线性同余的算术性质。最后,进一步得到了第(k+ 1)类n阶逆Dickson多项式的一阶和二阶矩的显式表达式.
Let n and k be nonnegative integers. In 2010, Hou and Ly evaluated the first and second moments of the n-th reversed Dickson polynomial of the first kind. In 2016, Hong, Qin and Zhao presented a recursive formula for the first moment of the n-th reversed Dickson polynomial of the second kind. In this paper, we introduce a new method to investigate the moments of the n-th reversed Dickson polynomial of (k+ 1)-th kind. In fact, we first show an extension of the famous Lucas' congruence and then study arithmetic properties of some two-variable linear congruences. Finally, with more efforts, we arrive at the explicit formulas for the first and second moments of the n-th reversed Dickson polynomial of the (k+ 1)-th kind.
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影响因子: 1
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