2010/77/1-2 (10) — DOI: 10.5486/PMD.2010.4619 — pp. 125-138
Full Text Abstract

Arithmetic progressions of four squares over quadratic fields

Authors: Enrique González-Jiménez and Jörn Steuding

Keywords: arithmetic progressions of four squares, $θ$-congruent numbers, Euler's concordant forms, quadratic fields

Mathematics Subject Classification: 14G35, 14H45, 11F11, 11G10, 11G05, 11B25