Analysis of an age structured SIR epidemic model with fractional Caputo derivative

Document Type : Research Paper


Laboratory LMACS, FST of Beni-Mellal, Sultan Moulay Slimane University, Morocco


In this paper, we consider a mathematical model with fractional derivatives in the sense of Caputo with respect to time. It describes the spread of an infectious disease that is directly transmitted in an age-structured population and whose transmission coefficient varies with age. We formulate the basic model as an abstract fractional Cauchy problem on a Banach space to prove the existence, and uniqueness of a local mild solution and ensure the global existence of a solution. Moreover, the results for the existence and uniqueness of non-trivial steady states are also demonstrated under the appropriate conditions.


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Volume 14, Issue 5
May 2023
Pages 79-93
  • Receive Date: 10 February 2023
  • Accept Date: 28 March 2023
  • First Publish Date: 18 April 2023