An Investigation of the Solutions of the System of Pell Equations x^2-8t^2y^2=1 and pz^2-t^2y^2=-1

Main Article Content

Vipawadee Moonchaisook

Abstract

This research aims to study the positive integer solutions of the Pell-type system of equations 


x^2-8t^2y^2=1 and pz^2-t^2y^2=-1


where  is a prime number, and t,x,y,z  are positive integers satisfying the conditions gcd(x,y)=1 and gcd(t,x)=1.  The methodology involves transforming the system into a form suitable for structural analysis. Number-theoretic concepts such as the properties of prime numbers, fourth power residues, and the quadratic reciprocity theorem are employed to classify cases and provide rigorous proofs. The results reveal that the system has no positive integer solutions; that is, there are no positive integers  that simultaneously satisfy both equations. This study enhances the understanding of the behavior of Pell-type equations and promotes new approaches for analyzing complex structural systems in theoretical number theory. Moreover, the findings have the potential for application in future mathematical research.


 

Article Details

How to Cite
Moonchaisook, V. (2025). An Investigation of the Solutions of the System of Pell Equations x^2-8t^2y^2=1 and pz^2-t^2y^2=-1. Journal of Science and Technology Buriram Rajabhat University (Online), 9(2), 39–60. retrieved from https://ph02.tci-thaijo.org/index.php/scibru/article/view/258791
Section
Research Articles
Author Biography

Vipawadee Moonchaisook, dindum4300@gmail.com

Lecturer

References

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