设a=2r,b=Ps,其中P是给定的奇素数,r和8是给定的正整数.运用有关三项Diophantine方程和广义Ramanujan-Nagell方程的结果,将方程ax+by=z2的所有正整数解(x,y,z)进行了分类,从而得出了这些解的可有效计算的上界.
Let a = 2r and b = ps, where p is a fixed odd prime, r and s are fixed positive integers. In this paper, using certain results on the ternary diophantine equation and the generalized Ramanujan-Nagell equations, M1 positive integer solutions (x, y, z) of the equation ax + by = z2 are classified. Thus, an effectively computable upper bound for the solutions is given.