Abstract
This article studies some important results in a Banach space for non-discrete nonlinear integro-differential equations with variable order \(0<\sigma (\theta )<1\)
The contraction mapping principle and Krasnoselskii fixed-point theorem are employed to investigate the results, and Ulam–Hyers definitions are used for stability theory. Further, we have discussed the maximal and minimal solutions with the continuation theorem for \(\sigma (\theta ) \rightarrow 1\).
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Significant Statement: The main aim of this work is to provide an analysis of the nonlinear integro-differential equations using the Caputo derivative. This paper discusses theoretically the existence and uniqueness of solutions of such equations. Under some hypotheses, it has been proved that the unique solution of the equation exists. An important question is whether the solution we are getting is stable or not. We have taken this question into consideration and discussed the stability of the solution which is a very important aspect in many physical phenomena.
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Verma, P., Tiwari, S. Existence, Uniqueness and Stability of Solutions of a Variable-Order Nonlinear Integro-differential Equation in a Banach Space. Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci. 93, 587–600 (2023). https://doi.org/10.1007/s40010-023-00852-w
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DOI: https://doi.org/10.1007/s40010-023-00852-w
Keywords
- Variable-order derivatives
- Nonlinear integro-differential equations
- Krasnoselskii fixed-point theorem
- Positive solutions
- Maximal and minimal solutions
- Ulam–Hyers stability