Inhomogeneous norm form equations over function fields
Let be a fixed odd prime. We combine some properties of quadratic and quartic Diophantine equations with elementary number theory methods to determine all integral points on the elliptic curve . Further, let denote the number of pairs of integral points on with . We prove that if , then or depending on whether or .
The purpose of this paper is to generalize some seminal results in the literature concerning the interrelationships between Legendre symbols and continued fractions. We introduce the power of ideal theory into the arena. This allows significant improvements over the existing results via the infrastructure of real quadratic fields.
Let a,b and c be relatively prime positive integers such that a²+b² = c². We prove that if and for some non-negative integer r, then the Diophantine equation has only the positive solution (x,y,z) = (2,2,2). We also show that the same holds if c ≡ -1 (mod a).