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Existence of positive solutions for fractional differential equations with Riemann-Liouville left-hand and right-hand fractional derivatives. (English) Zbl 1050.34003

Summary: Combining properties of Riemann-Liouville fractional calculus and fixed-point theorems, we obtain three existence results on one positive solution and on multiple positive solutions for initial value problems with fractional differential equations.

MSC:

34A12 Initial value problems, existence, uniqueness, continuous dependence and continuation of solutions to ordinary differential equations
26A33 Fractional derivatives and integrals
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