Coupled system of $\psi$--Caputo fractional differential equations without and with delay in generalized Banach spaces

Choukri DERBAZİ, Zidane BAİTİCHEZİDANE, Mouffak BENCHOHRA

New existence results for nonlinear functional hybrid differential equations involving the $\psi-$Caputo fractional derivative

Alı EL MFADEL, Said MELLİANİ, M'hamed ELOMARİ