Functional Differential Equations Involving the ψ-Caputo Fractional Derivative
Abstract
:1. Introduction
2. Preliminaries
3. Fractional Functional Differential Equations
- and are two fixed real numbers,
- and are two continuous functions,
- such that exists and is continuous on ,
- such that , for all ,
- is the translation .
- 1.
- F has a fixed point in , or
- 2.
- there exists and with .
- 1.
- two continuous functions and such that q is nondecreasing and the following condition holds:
- 2.
- a positive constant such that
- Function F is continuous.Let be a sequence in whose limit is . Then, for all , we have the following:
- Function F is uniformly bounded.Let
- Function F maps bounded sets into equicontinuous sets.Let us prove that is equicontinuous. For that purpose, consider , with , and . Then,
- LetTo end the proof, we will see that condition 2 in Theorem 4 cannot be satisfied. Given and , we have that . If there were a function and a real number such that , then we would have
4. Example
5. Conclusions
Funding
Conflicts of Interest
References
- Dong, Q.; Fan, Z.; Li, G. Existence of solutions to nonlocal neutral functional differential and integrodifferential equations. Int. J. Nonlinear Sci. 2008, 5, 140–151. [Google Scholar]
- Hernández, E.; Henríquez, H.R. Existence results for partial neutral functional differential equations with unbounded delay. J. Math. Anal. Appl. 1998, 221, 452–475. [Google Scholar] [CrossRef] [Green Version]
- Hernández, E.; Henríquez, H.R. Existence of periodic solutions of partial neutral functional differential equations with unbounded delay. J. Math. Anal. Appl. 1998, 221, 499–522. [Google Scholar] [CrossRef] [Green Version]
- Ye, R.; Dong, Q.; Li, G. Existence of solutions for double perturbed neutral functional evolution equation. Int. J. Nonlinear Sci. 2009, 8, 360–367. [Google Scholar]
- Hale, J.; Lunel, S.M.V. Introduction to Functional Differential Equations. In Applied Mathematical Sciences; Springer: New York, NY, USA, 1993; Volume 99. [Google Scholar]
- Kolmanovskii, V.; Myshkis, A. Introduction to the Theory and Applications of Functional Differential Equations. In Mathematics and Its Applications; Kluwer Academic Publishers: Dordrecht, The Netherland, 1999; Volume 463. [Google Scholar]
- Kolmanovskii, V.B.; Nosov, V.R. Stability of Functional Differential Equations; Academic Press: New York, NY, USA, 1986. [Google Scholar]
- Belarbi, A.; Benchohra, M.; Ouahab, A. Uniqueness results for fractional functional differential equations with infinite delay in Fréchet spaces. Appl. Anal. 2006, 85, 1459–1470. [Google Scholar] [CrossRef]
- Benchohra, M.; Henderson, J.; Ntouyas, S.K.; Ouahab, A. Existence results for fractional order functional differential equations with infinite delay. J. Math. Anal. Appl. 2008, 338, 1340–1350. [Google Scholar] [CrossRef]
- Darwish, M.A.; Ntouyas, S.K. Existence results for a fractional functional differential equation of mixed type. Commun. Appl. Nonlinear Anal. 2008, 15, 47–55. [Google Scholar]
- Henderson, J.; Ouahab, A. Fractional functional differential inclusions with finite delay. Nonlinear Anal. 2009, 70, 2091–2105. [Google Scholar] [CrossRef]
- Lakshmikantham, V. Theory of fractional functional differential equations. Nonlinear Anal. 2008, 69, 3337–3343. [Google Scholar] [CrossRef]
- Chen, F.; Chen, A.; Wang, X. On the solutions for impulsive fractional functional differential equations. Differ. Equ. Dynam. Syst. 2009, 17, 379–391. [Google Scholar] [CrossRef]
- Chen, F.; Zhou, Y. Attractivity of fractional functional differential equations. Comput. Math. Appl. 2011, 62, 1359–1369. [Google Scholar] [CrossRef] [Green Version]
- El-Sayed, A.M.A. Nonlinear functional differential equations of arbitrary orders. Nonlinear Anal. 1998, 33, 181–186. [Google Scholar] [CrossRef]
- Guo, T.L.; Jiang, W. Impulsive fractional functional differential equations. Comput. Math. Appl. 2012, 64, 3414–3424. [Google Scholar] [CrossRef] [Green Version]
- Ahmad, B.; Ntouyas, S.K. Initial value problems of fractional order Hadamard-type functional differential equations. Electron. J. Differ. Equ. 2015, 77, 1–9. [Google Scholar]
- Agarwal, R.P.; Ntouyas, S.K.; Ahmad, B.; Alzahrani, A.K. Hadamard-type fractional functional differential equations and inclusions with retarded and advanced arguments. Adv. Differ. Equ. 2016, 2016, 92. [Google Scholar] [CrossRef] [Green Version]
- Almeida, R. A Caputo fractional derivative of a function with respect to another function. Commun. Nonlinear Sci. Numer. Simul. 2017, 44, 460–481. [Google Scholar] [CrossRef]
- Gambo, Y.Y.; Jarad, F.; Baleanu, D.; Abdeljawad, T. On Caputo modification of the Hadamard fractional derivatives. Adv. Differ. Equ. 2014, 10. [Google Scholar] [CrossRef] [Green Version]
- Jarad, F.; Abdeljawad, T.; Baleanu, D. Caputo-type modification of the Hadamard fractional derivatives. Adv. Differ. Equ. 2012, 142. [Google Scholar] [CrossRef] [Green Version]
- Kilbas, A.A.; Srivastava, H.M.; Trujillo, J.J. Theory and Applications of Fractional Differential Equations. In North-Holland Mathematics Studies; Elsevier Science B.V.: Amsterdam, Switzerland, 2006; Volume 204. [Google Scholar]
- Luchko, Y.; Trujillo, J.J. Caputo-type modification of the Erdélyi–Kober fractional derivative. Fract. Calc. Appl. Anal. 2007, 10, 249–267. [Google Scholar]
- Samko, S.G.; Kilbas, A.A.; Marichev, O.I. Fractional Integrals and Derivatives, Translated from the 1987 Russian Original; Gordon and Breach: Yverdon, Switzerland, 1993. [Google Scholar]
- Almeida, R.; Malinowska, A.B.; Monteiro, M.T.T. Fractional differential equations with a Caputo derivative with respect to a kernel function and their applications. Math. Meth. Appl. Sci. 2018, 41, 336–352. [Google Scholar] [CrossRef] [Green Version]
- Almeida, R. What is the best fractional derivative to fit data? Appl. Anal. Discrete Math. 2017, 11, 358–368. [Google Scholar] [CrossRef] [Green Version]
- Asanov, A.; Almeida, R.; Malinowska, A.B. Fractional differential equations and Volterra–Stieltjes integral equations of the second kind. Comput. Appl Math. 2019, 38, 160. [Google Scholar] [CrossRef] [Green Version]
© 2020 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Share and Cite
Almeida, R. Functional Differential Equations Involving the ψ-Caputo Fractional Derivative. Fractal Fract. 2020, 4, 29. https://doi.org/10.3390/fractalfract4020029
Almeida R. Functional Differential Equations Involving the ψ-Caputo Fractional Derivative. Fractal and Fractional. 2020; 4(2):29. https://doi.org/10.3390/fractalfract4020029
Chicago/Turabian StyleAlmeida, Ricardo. 2020. "Functional Differential Equations Involving the ψ-Caputo Fractional Derivative" Fractal and Fractional 4, no. 2: 29. https://doi.org/10.3390/fractalfract4020029