Strong Eulerian triples
arXiv:1802.00291 · doi:10.3336/gm.53.1.03
Abstract
We prove that there exist infinitely many rationals a, b and c with the property that a^2-1, b^2-1, c^2-1, ab-1, ac-1 and bc-1 are all perfect squares. This provides a solution to a variant of the problem studied by Diophantus and Euler.
8 pages