


Solutions of higher-order fractional boundary value problems with fractional left-focal like conditions
Vol 3, Issue 2, 2025
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Abstract
We consider a higher-order Riemann-Liouville fractional boundary value problem with two-point boundary conditions. The higher-order fractional conditions are left-focal inspired. Using fixed point results, the existence and nonexistence of positive solutions are conditioned upon the size of the parameter λ in the differential equation. Our approach involves constructing a Green function by combining the Green’s functions of a fractional problem of lower order and a left focal boundary value problem. We then use induction to increase the order. An example is provided to illustrate the existence and nonexistence regions.
Keywords
References
1. Eloe PW, Neugebauer JT. Convolutions and Green’s functions for two families of boundary value problems for fractional differential equations. Electronic Journal of Differential Equations. 2016; 2016: 1–13.
2. Lyons JW, Neugebauer JT. Two point fractional boundary value problems with a fractional boundary condition. Fractional Calculus and Applied Analysis. 2018; 21(2): 442–461.
3. Neugebauer JT, Wingo AG. Positive solutions for a fractional boundary value problem with lidstone-like boundary conditions. Kragujevac Journal of Mathematics. 2024; 48(2): 309–322.
4. Graef JR, Qian C, Yang B. A three point boundary value problem for nonlinear fourth order differential equations. Journal of Mathematical Analysis and Applications. 2003; 287(1): 217–233.
5. Graef JR, Yang B. Existence and nonexistence of positive solutions of fourth order nonlinear boundary value problems. Applicable Analysis. 2000; 74(1–2): 201–214.
6. Graef JR, Yang B. Positive solutions to a multi-point higher order boundary-value problem. Journal of Mathematical Analysis and Applications. 2006; 316(2): 409–421.
7. Graef JR, Henderson J, Yang B. Positive solutions of a nonlinear higher order boundary-value problem. Electronic Journal of Differential Equations. 2007; 2007(45): 1–10.
8. Agarwal RP, O’Regan D, Staněk S. Positive solutions for Dirichlet problems of singular nonlinear fractional differential equations. Journal of Mathematical Analysis and Applications. 2010; 371(1): 57–68. doi: 10.1016/j.jmaa.2010.04.034
9. Bai Z, Lü H. Positive solutions for boundary value problem of nonlinear fractional differential equation. Journal of Mathematical Analysis and Applications 2005; 311(2): 495–505. doi: 10.1016/j.jmaa.2005.02.052
10. Dimitrov ND, Jonnalagadda JM. Existence and nonexistence results for a fourth-order boundary value problem with sign-changing Green’s function. Mathematics. 2024; 12(16): 1–12.
11. Henderson J, Luca R. Existence of positive solutions for a singular fraction boundary value problem. Nonlinear Analysis: Modelling and Control. 2017; 22(1): 99–114.
12. Kaufmann ER, Mboumi E. Positive solutions of a boundary value problem for a nonlinear fractional differential equation. Electronic Journal of Qualitative Theory of Differential Equations. 2008; 2008(3): 1–11.
13. Rehman MU, Khan RA, Eloe PW. Positive solutions of nonlocal boundary value problem for higher order fractional differential system. Dynamic Systems and Applications. 2011; 20: 169–182.
14. Yang B. Upper estimate for positive solutions of the (p, n − p) conjugate boundary value problem. Journal of Mathematical Analysis and Applications. 2012; 390(2): 535–548. doi: 10.1016/j.jmaa.2012.01.054
15. Youssri YH, Atta AG. Chebyshev Petrov–Galerkin method for nonlinear time-fractional integro-differential equations with a mildly singular kernel. Journal of Applied Mathematics and Computing. 2025; 1–21. doi: 10.1007/s12190-025-02371-w
16. Albeladi G, Gamal M, Youssri YH. G-Metric spaces via fixed point techniques for Ψ-contraction with applications. Fractal and Fractional. 2025; 9(3): 1–31. doi: 10.3390/fractalfract9030196
17. Lyons JW, Neugebauer JT, Wingo AG. Existence and nonexistence of positive solutions for fractional boundary value problems with Lidstone-inspired fractional conditions. Mathematics. 2025; 13(8): 1–15.
18. Taema MA, Zeen El-Deen MR. Youssri YH. Fourth-kind Chebyshev operational tau algorithm for fractional Bagley-Torvik equation. Frontiers in Scientific Research and Technology. 2025; 11(1): 1–8.
19. Youssri YH, Alnaser LA, Atta AG. A spectral collocation approach for time-fractional Korteweg-deVries-Burgers equation via first-kind Chebyshev polynomials. Contemp. Math. 2025; 6(2): 1501–1519. doi: 10.37256/cm.6220255948
20. Diethelm K. The Analysis of Fractional Differential Equations: An Application-Oriented Exposition Using Differential Operators of Caputo Type. Springer; 2010.
21. Kilbas AA, Srivastava HM, Trujillo JJ. Theory and Applications of Fractional Differential Equations. In: North-Holland Mathematics Studies. Elsevier Science B.V.; 2006. Volume 204.
22. Miller KS, Ross B. An Introduction to the Fractional Calculus and Fractional Differential Equations. Wiley-Interscience; 1993.
23. Podlubny I. Fractional Differential Equations. Academic Press; 1999.
24. Eloe P, Lyons JW, Neugebauer JT. An ordering on Green’s functions for a family of two-point boundary value problems for fractional differential equations. Communications in Applied Analysis. 2015; 19: 453–462.
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Editor-in-Chief

Prof. Youssri Hassan Youssri
Cairo University, Egypt
Asia Pacific Academy of Science Pte. Ltd. (APACSCI) specializes in international journal publishing. APACSCI adopts the open access publishing model and provides an important communication bridge for academic groups whose interest fields include engineering, technology, medicine, computer, mathematics, agriculture and forestry, and environment.