Hyers–Ulam stability of a coupled system of fractional differential equations of Hilfer–Hadamard type

  • 1 Department of Mathematics, University of Peshawar, 25000, Peshawar, Pakistan
  • 2 Department of Mathematics and General Sciences, Prince Sultan University, 11586, Riyadh, Saudi Arabia


In this paper, existence and uniqueness of solution for a coupled impulsive Hilfer–Hadamard type fractional differential system are obtained by using Kransnoselskii’s fixed point theorem. Different types of Hyers–Ulam stability are also discussed.We provide an example demonstrating consistency to the theoretical findings.

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