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math.NT2025
Determination of Some Types of Permutations over with Low-Degree
Xuan Pang, Yangcheng Li, Pingzhi Yuan +1
The characterization of permutations over finite fields is an important topic in number theory with a long-standing history. This paper presents a systematic investigation of low-d…
math.NT2023
On the Diophantine system involving pairs of triangles with the same area and the same perimeter
Yangcheng Li, Yong Zhang
Many authors studied the problem that rational triangle pairs (triangle-parallelogram pairs) with the same area and the same perimeter. They investigated this problem by solving th…