Mathematical Inequalities & Applications · Volume 13, Issue 2 The Darboux problem for hyperbolic functional differential equations and inequalities in the sense of Carathéodory 13-31 Pages 405-425 DOI 10.7153/mia-13-31 Downloads Short PDF Full PDF PNG Authors Adrian Karpowicz Keywords functional differential inequalities functional differential equations hyperbolic equations Darboux problem solutions in the sense of Carathéodory Subject classes 35L70 35R10 35R45