本文研究了方程(x2-1)/(y2-1)=(z2-1)2.利用四次和二次方程的性质,获得了它的全部正整数解(x,y,z).
In this article,we study equation(x2-1)/(y2-1)=(z2-1)2.By using some properties of quadratic and quartic Diophantine equations,all the positive integer solutions(x,y,z)of this equation are obtained.