Extremal Solutions for a Caputo-Type Fractional-Order Initial Value Problem

In this paper, we study the existence of extremal solutions for a Caputo-type fractional-order initial value problem. By using the monotone iteration technique and the upper–lower solution method, we obtain our existence theorem when the nonlinearity satisfies a reverse-type Lipschitz condition. Not...

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Bibliographic Details
Main Authors: Keyu Zhang, Tian Wang, Donal O’Regan, Jiafa Xu
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/9/5/308
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