利用代数数论整数环的唯一分解性,研究了不定方程x^2+64=4y^n(n=5,9)的整数解问题,并证明了当n=5时,该方程仅有整数解(x,y)=(±8,2);当n=9时,该方程无整数解。
The problem of integer solution to the Diophantine equation x^2 + 64 = 4 y^n(n = 5, 9) is discussed by using the methods of algebraic number theory. The Diophantine equation has integer solution(x, y) =(±8, 2) when n = 5, and the Diophantine equation has no integer solution when n=9.