Mathematical Inequalities & Applications · Volume 16, Issue 4 Regularity for solutions of nonlinear retarded functional differential equations 16-84 Pages 1083-1095 DOI 10.7153/mia-16-84 Downloads Short PDF Full PDF PNG Authors Jin-Mun Jeong Sang-Jin Son Keywords nonlinear differential equation monotone operator existence regularity Subject classes 35F25 35K55