Communications on Applied Mathematics and Computation ›› 2025, Vol. 7 ›› Issue (4): 1516-1539.doi: 10.1007/s42967-023-00351-0

• ORIGINAL PAPERS • Previous Articles     Next Articles

On Nonlinear Analysis for Multi-term Delay Fractional Differential Equations Under Hilfer Derivative

Dildar Ahmad1, Amjad Ali1, Kamal Shah2,3, Bahaaeldin Abdalla2, Thabet Abdeljawad2,4   

  1. 1. Department of Mathematics and Statistics, University of Swat, Khyber Pakhtunkhwa, Pakistan;
    2. Department of Mathematics and Sciences, Prince Sultan University, P. O. Box 66833, 11586, Riyadh, Saudi Arabia;
    3. Department of Mathematics, University of Malakand, Dir(L), Khyber Pakhtunkhwa, Pakistan;
    4. Department of Mathematics and Applied Mathematics, School of Science and Technology, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
  • Received:2023-06-09 Revised:2023-10-09 Accepted:2023-11-09 Online:2024-02-12 Published:2024-02-12
  • Supported by:
    Open access funding provided by Sefako Makgatho Health Sciences University.

Abstract: In this manuscript, a class of multi-term delay fractional differential equations (FDEs) under the Hilfer derivative is considered. Some newly updated results are established under boundary conditions. For the required results, we utilize the fixed point theory and tools of the nonlinear functional analysis. Further keeping in mind the importance of stability results, we develop some adequate results about the said aspect. The Hyers-Ulam (H-U)-type concept is used to derive the required stability for the solution of the considered problem. Finally, by appropriate test problems, we justify our findings.

Key words: Hilfer derivative, Multi-term, Existence results, Stability

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