Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
842652 | Nonlinear Analysis: Theory, Methods & Applications | 2010 | 10 Pages |
Abstract
This note is motivated from some recent papers treating the problem of the existence of a solution for abstract differential equations with fractional derivatives. We show that the existence results in [Agarwal et al. (2009) [1], Belmekki and Benchohra (2010) [2], Darwish et al. (2009) [3], Hu et al. (2009) [4], Mophou and N’Guérékata (2009) [6] and [7], Mophou (2010) [8] and [9], Muslim (2009) [10], Pandey et al. (2009) [11], Rashid and El-Qaderi (2009) [12] and Tai and Wang (2009) [13]] are incorrect since the considered variation of constant formulas is not appropriate. In this note, we also consider a different approach to treat a general class of abstract fractional differential equations.
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Authors
Eduardo Hernández, Donal O’Regan, Krishnan Balachandran,