Abstract
In this paper, an optimization method based on the generalized polynomials (GP) including the unknown free coefficients and control parameters has been proposed to approximate the solution of a model of HIV infection of \(\hbox {CD4}^{+}\) T cells (HIV-I-CD4T). First, the operational matrices (OM) of derivatives are derived. Then, based on these OM and the Lagrange multipliers method, an optimization method is presented to approximate solution of a model of HIV-I-CD4T. An illustrative example is given to demonstrate the efficiency and accuracy of the proposed method and confirms that results are in good accuracy in comparisons with other numerical approaches.
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Abbreviations
- T(t):
-
The concentration of healthy CD4T at time t
- I(t):
-
The concentration of I-CD4T at time t
- V(t):
-
The concentration of free HIV at time t
- s :
-
The source of CD4T from the precursors
- \(\alpha \) :
-
The natural death rate of CD4T
- r :
-
Growth rate of CD4T population
- \(T_{\mathrm{max}}\) :
-
The maximal population level of CD4T
- \(k^{*}\) :
-
The rate of I-CD4T with free virus present in the environment and hence is a plus term for I-CD4T
- \(\beta \) :
-
The overall death rate for I-CD4T
- N :
-
Virus particles are released by each dying (infected) CD4T
- \(\gamma \) :
-
The death rate of viruses
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Hassani, H., Mehrabi, S., Naraghirad, E. et al. An Optimization Method Based on the Generalized Polynomials for a Model of HIV Infection of \(\hbox {CD4}^{+}\) T Cells. Iran J Sci Technol Trans Sci 44, 407–416 (2020). https://doi.org/10.1007/s40995-020-00833-3
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DOI: https://doi.org/10.1007/s40995-020-00833-3
Keywords
- A model of HIV infection of \(\hbox {CD4}^{+}\) T cells
- Generalized polynomials
- Operational matrices
- Optimization method
- Control parameters