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Maximum principle for the multi-term time-fractional diffusion equations with the Riemann–Liouville fractional derivatives

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  • Al-Refai, Mohammed
  • Luchko, Yuri

Abstract

In this paper, the initial-boundary-value problems for linear and non-linear multi-term fractional diffusion equations with the Riemann–Liouville time-fractional derivatives are considered. To guarantee the uniqueness of solutions, we employ the weak and the strong maximum principles for the equations under consideration that are formulated and proved in this paper for the first time. An essential element of our proof of the maximum principles is an estimation for the value of the Riemann–Liouville fractional derivative of a function at its maximum point that is established in this paper for a wider space of functions compared to those used in our previous publications. In the linear case, the solutions to the problems under consideration are constructed in form of the Fourier series with respect to the eigenfunctions of the corresponding eigenvalue problems.

Suggested Citation

  • Al-Refai, Mohammed & Luchko, Yuri, 2015. "Maximum principle for the multi-term time-fractional diffusion equations with the Riemann–Liouville fractional derivatives," Applied Mathematics and Computation, Elsevier, vol. 257(C), pages 40-51.
    • Handle: RePEc:eee:apmaco:v:257:y:2015:i:c:p:40-51
    DOI: 10.1016/j.amc.2014.12.127
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    Cited by:

    1. Atangana, Abdon & Gómez-Aguilar, J.F., 2017. "Hyperchaotic behaviour obtained via a nonlocal operator with exponential decay and Mittag-Leffler laws," Chaos, Solitons & Fractals, Elsevier, vol. 102(C), pages 285-294.
    2. Marina Popolizio, 2018. "Numerical Solution of Multiterm Fractional Differential Equations Using the Matrix Mittag–Leffler Functions," Mathematics, MDPI, vol. 6(1), pages 1-13, January.
    3. Boyadjiev, Lyubomir & Luchko, Yuri, 2017. "Mellin integral transform approach to analyze the multidimensional diffusion-wave equations," Chaos, Solitons & Fractals, Elsevier, vol. 102(C), pages 127-134.
    4. Elsayed I. Mahmoud & Temirkhan S. Aleroev, 2022. "Boundary Value Problem of Space-Time Fractional Advection Diffusion Equation," Mathematics, MDPI, vol. 10(17), pages 1-12, September.

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