Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions

In this paper, we establish the existence of solutions to a nonlinear boundary value problem (BVP) of variable order at resonance. The main theorem in this study is proved with the help of generalized intervals and piecewise constant functions, in which we convert the mentioned Caputo BVP of fractio...

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Main Authors: Shahram Rezapour, Mohammed Said Souid, Sina Etemad, Zoubida Bouazza, Sotiris K. Ntouyas, Suphawat Asawasamrit, Jessada Tariboon
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/5/4/216
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author Shahram Rezapour
Mohammed Said Souid
Sina Etemad
Zoubida Bouazza
Sotiris K. Ntouyas
Suphawat Asawasamrit
Jessada Tariboon
author_facet Shahram Rezapour
Mohammed Said Souid
Sina Etemad
Zoubida Bouazza
Sotiris K. Ntouyas
Suphawat Asawasamrit
Jessada Tariboon
author_sort Shahram Rezapour
collection DOAJ
description In this paper, we establish the existence of solutions to a nonlinear boundary value problem (BVP) of variable order at resonance. The main theorem in this study is proved with the help of generalized intervals and piecewise constant functions, in which we convert the mentioned Caputo BVP of fractional variable order to an equivalent standard Caputo BVP at resonance of constant order. In fact, to use the Mawhin’s continuation technique, we have to transform the variable order BVP into a constant order BVP. We prove the existence of solutions based on the existing notions in the coincidence degree theory and Mawhin’s continuation theorem (MCTH). Finally, an example is provided according to the given variable order BVP to show the correctness of results.
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spelling doaj.art-6aba2fec72894549918f9d3b408b485c2023-11-23T08:23:53ZengMDPI AGFractal and Fractional2504-31102021-11-015421610.3390/fractalfract5040216Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant FunctionsShahram Rezapour0Mohammed Said Souid1Sina Etemad2Zoubida Bouazza3Sotiris K. Ntouyas4Suphawat Asawasamrit5Jessada Tariboon6Department of Mathematics, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranDepartment of Economic Sciences, University of Tiaret, Tiaret 14035, AlgeriaDepartment of Mathematics, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranLaboratory of Mathematics, Djillali Liabes University, Sidi Bel-Abbès 22000, AlgeriaDepartment of Mathematics, University of Ioannina, 451 10 Ioannina, GreeceIntelligent and Nonlinear Dynamic Innovations Research Center, Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandIntelligent and Nonlinear Dynamic Innovations Research Center, Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandIn this paper, we establish the existence of solutions to a nonlinear boundary value problem (BVP) of variable order at resonance. The main theorem in this study is proved with the help of generalized intervals and piecewise constant functions, in which we convert the mentioned Caputo BVP of fractional variable order to an equivalent standard Caputo BVP at resonance of constant order. In fact, to use the Mawhin’s continuation technique, we have to transform the variable order BVP into a constant order BVP. We prove the existence of solutions based on the existing notions in the coincidence degree theory and Mawhin’s continuation theorem (MCTH). Finally, an example is provided according to the given variable order BVP to show the correctness of results.https://www.mdpi.com/2504-3110/5/4/216piecewise constant functionMawhin’s continuation techniquevariable orderresonanceexistence
spellingShingle Shahram Rezapour
Mohammed Said Souid
Sina Etemad
Zoubida Bouazza
Sotiris K. Ntouyas
Suphawat Asawasamrit
Jessada Tariboon
Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
Fractal and Fractional
piecewise constant function
Mawhin’s continuation technique
variable order
resonance
existence
title Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
title_full Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
title_fullStr Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
title_full_unstemmed Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
title_short Mawhin’s Continuation Technique for a Nonlinear BVP of Variable Order at Resonance via Piecewise Constant Functions
title_sort mawhin s continuation technique for a nonlinear bvp of variable order at resonance via piecewise constant functions
topic piecewise constant function
Mawhin’s continuation technique
variable order
resonance
existence
url https://www.mdpi.com/2504-3110/5/4/216
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