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Upper and Lower Solutions to a Coupled System of Nonlinear Fractional Differential Equations |
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PP: 31-39 |
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doi:10.18576/pfda/020104
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Author(s) |
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Kamal Shah,
Hammad Khalil,
Rahmat Ali Khan,
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Abstract |
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| In this article, we investigate upper and lower solutions to a system of coupled nonlinear fractional differential equations
with multi-point coupled boundary conditions. Using monotone type iterative techniques combined with the upper and lower solutions
method, some necessary and sufficient conditions are developed to guarantee existence of multiple solutions of the problem. The main
result is demonstrated by analyzing two test problems. |
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