Abstract

In this paper, we have extended the model of HIV-1 infection to the fractional mathematical model using Caputo-Fabrizio and Atangana-Baleanu fractional derivative operators. A detailed proof for the existence and the uniqueness of the solution of fractional mathematical model of HIV-1 infection in Atangana-Baleanu sense is presented. Numerical approach is used to find and study the behavior of the solution of the stated model using different derivative operators, and the graphical comparison between the solutions obtained for the Caputo-Fabrizio and the Atangana-Baleanu operator is presented to see which fractional derivative operator is more efficient.

Highlights

  • HIV stands for the Human Immunodeficiency Virus

  • It is an imperative determinant for the need for opportunistic infection (OI) prophylaxis

  • CD4+ T cell count is determined from blood as a part of laboratory monitoring for HIV infection

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Summary

Introduction

HIV stands for the Human Immunodeficiency Virus. This virus attacks a person’s immune system. CD4+ T cell count is a measure of immune function in a patient with HIV. It is an imperative determinant for the need for opportunistic infection (OI) prophylaxis. We will consider the fractional mathematical model of HIV-1 infection in sense of Caputo-Fabrizio derivative operator [17] and Atangana-Baleanu derivative operator [18]. The numerical solutions are presented for the fractional mathematical model in sense of the Caputo-Fabrizio and the Atangana-Baleanu derivative operator. Ζβt represents the Caputo-Fabrizio fractional derivative of order β and NðβÞ is a normalization function and the following holds Nð0Þ = Nð1Þ = 1: Definition 2 (see [19]). Let f be an integrable function on R, the fractional integral of Atangana-Baleanu fractional derivative of order β is given as

Fractional HIV-1 Model in CaputoFabrizio Sense
Existence and Uniqueness of the Solution
Conclusion
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