RT Journal Article T1 Existence of Solutions of Nonlinear and Non-local Fractional Boundary Value Problems A1 Cabada Fernández, Alberto A1 Aleksic, Suzana A1 Tomovic, Tatjana V. A1 Dimitrijevic, Sladjana K1 Fractional differential equation K1 non-local boundary value problem K1 positive solution K1 Caputo’s fractional derivative K1 Green’s function AB In this paper, we establish new results for non-local boundary value problems. In particular, we study a fractional differential equation where the associated integral equation has a kernel that is not bounded above and changes its sign, so that, the positive sign of the possible solutions is generally not ensured. We provide some examples which support the theory and illustrate the applicability of the obtained results. PB Springer Nature Link SN 1660-5446 YR 2019 FD 2019-08-17 LK https://hdl.handle.net/10347/45153 UL https://hdl.handle.net/10347/45153 LA eng NO Cabada, A., Aleksić, S., Tomović, T.V. et al. Existence of Solutions of Nonlinear and Non-local Fractional Boundary Value Problems. Mediterr. J. Math. 16, 119 (2019). https://doi.org/10.1007/s00009-019-1388-9 NO First author partially is supported by Xunta de Galicia (Spain), project EM2014/032 and AIE Spain and FEDER, Grant MTM2016-75140-P. Second, third and fourth authors are supported by Serbian Ministry of Science and Technology (Grants 174024 and 174015). DS Minerva RD 29 abr 2026