Allahviranloo, TofighAvazpour, LutfiEbadi, Mohammad J.Baleanu, DumitruSalahshour, Soheil2025-05-082025-05-0820131029-242Xhttps://doi.org/10.1186/1029-242X-2013-50https://hdl.handle.net/20.500.12416/9495The use of fractional inequalities in mathematical models is increasingly widespread in recent years. In this manuscript, we firstly propose the right Caputo derivative of fuzzy-valued functions about fractional order v (0 < v < 1). To this end, we consider two types of differentiability (similar to the non-fractional case). Then we derive the equivalent integral forms of original fuzzy fractional differential equations. Finally, we prove the fuzzy Ostrowski inequality involving three functions under Caputo's differentiability. In this regard, we state some new results.eninfo:eu-repo/semantics/openAccessFuzzy Fractional Ostrowski InequalityFuzzy Caputo DifferentiabilityHukuhara DifferenceFuzzy-Valued FunctionErratum10.1186/1029-242X-2013-502-s2.0-84894286649WOS:000324375900001Q1Q2