64 citations · 114 across the 30 of their papers we have counts for
7 papers · 1 filter
The matrix equation over
Hongjian Li, Pingzhi Yuan
Let be the set of all positive integers and let be nonzero integers such that . In this paper, we prove the following thr…
Positive rational number of the form
Hongjian Li, Pingzhi Yuan, Hairong Bai
Let and be positive integers with . In this paper, we show that every positive rational number can be written as the form ,…
Local Method for Compositional Inverses of Permutational Polynomials
Pingzhi Yuan
In this paper, we provide a local method to find compositional inverses of all PPs, some new PPs and their compositional inverses are given.
On The Strmer Theorem And Its Applications
Pingzhi Yuan, Jiagui Luo, Alain Togbé
In the present paper we introduce old and new results related to Störmer theorem about Pell equations. Moreover we give four types of applications of these results.
Permutation trinomials over : a corrected version
Danyao Wu, Pingzhi Yuan, Cunsheng Ding +1
Permutation polynomials are an interesting subject of mathematics and have applications in other areas of mathematics and engineering. In this paper, we determine all permutation t…
Permutation Polynomials and their Compositional Inverses
Pingzhi Yuan
In this paper, we prove that every PP is an AGW-PP. We also extend the result of Wan and Lidl to other permutation polynomials over finite fields and determine their group structur…
Compositional Inverses of AGW-PPs
Pingzhi Yuan
In this paper, we present two methods to obtain the compositional inverses of AGW-PPs. We improve some known results in this topic.