Positive solutions for fractional boundary value problems under a generalized fractional operator
• +1
• Mohammed S. Abdo,
• Mdi Jeelani,
• ABDULKAFI SAEED,
• Kamal Shah
Mohammed S. Abdo
Hodeidah University
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Mdi Jeelani
Imam Muhammad Ibn Saud Islamic University
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ABDULKAFI SAEED
Qassim University
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Kamal Shah
University of Malakand
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## Abstract

The work reported here concerns with study a generalized nonlinear fractional boundary value problems involving $\vartheta$- fractional derivative in the Riemann-Liouville sense. The existence and uniqueness of positive solutions to the problem at hand are proved. Our discussion relies on the properties of the Green’s function, the upper and lower solutions method, and the classical fixed point theorems in a cone. Moreover, building upper and lower control functions have an effective role in the analysis. Some examples are offered to justify the validity of theoretical findings.

#### Peer review status:ACCEPTED

05 Jun 2020Submitted to Mathematical Methods in the Applied Sciences
12 Jun 2020Assigned to Editor
12 Jun 2020Submission Checks Completed
29 Jun 2020Reviewer(s) Assigned
13 Feb 2021Review(s) Completed, Editorial Evaluation Pending
24 Feb 2021Editorial Decision: Accept