2014/84/1-2 (12) — DOI: 10.5486/PMD.2014.5990 — pp. 165-188
Full Text Abstract

Homogeneous differential equations and the inverse problem of the calculus of variations

Authors: Olga Rossi

Keywords: positively homogeneous functions of degree c, positively homogeneous equations of degree c, semi-variational equations, variational equations, Helmholtz conditions

Mathematics Subject Classification: 34A55, 49K15, 58E30, 70H03, 58A20, 49N45