2016/89/3 (4) — DOI: 10.5486/PMD.2016.7637 — pp. 297-306
Full Text Abstract

A regularity condition for quadratic functions involving the unit circle

Authors: Zoltán Boros, Włodzimierz Fechner and Péter Kutas

Keywords: additive function, quadratic function, conditional inequality, conditional equation

Mathematics Subject Classification: 39B52