ON THE REPRESENTATION OF NUMBERS BY BINARY BIQUADRATIC FORMS
V A Dem'janenko · Mathematics of the USSR-Sbornik · 1969
In this paper it is proved that if the rank of the equation over the field does not exceed unity, and if is not divisible by any fourth power and is relatively prime to the discriminant, then, provided that is sufficiently large relative to , the equation does not have more than three positive integer solutions.Bibliography 10 items.