Time-Adaptive Determination of Drug Efficacy in Mathematical Model of HIV Infection
(2021) In Differential Equations and Dynamical Systems- Abstract
The paper considers a time-adaptive finite element method for determination of drug efficacy in a parameter identification problem (PIP) for a system of ordinary differential equations (ODE) that describes dynamics of the primary human immunodeficiency virus (HIV) infection with drug therapy. Tikhonov’s regularization method, optimization approach and finite element method to solve this problem are presented. A posteriori error estimates in the Tikhonov’s functional and reconstructed parameter are derived. Based on these estimates a time adaptive algorithm is formulated and numerically tested for different scenarios of noisy observations of virus population function. Numerical results show a significant improvement of reconstruction of... (More)
The paper considers a time-adaptive finite element method for determination of drug efficacy in a parameter identification problem (PIP) for a system of ordinary differential equations (ODE) that describes dynamics of the primary human immunodeficiency virus (HIV) infection with drug therapy. Tikhonov’s regularization method, optimization approach and finite element method to solve this problem are presented. A posteriori error estimates in the Tikhonov’s functional and reconstructed parameter are derived. Based on these estimates a time adaptive algorithm is formulated and numerically tested for different scenarios of noisy observations of virus population function. Numerical results show a significant improvement of reconstruction of drug efficacy parameter using the local time-adaptive mesh refinement method compared to the gradient method applied on a uniform time mesh.
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- author
- Beilina, L. ; Eriksson, M. LU and Gainova, I.
- publishing date
- 2021-06-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Differential Equations and Dynamical Systems
- publisher
- Springer
- external identifiers
-
- scopus:85107726288
- ISSN
- 0971-3514
- DOI
- 10.1007/s12591-021-00572-w
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2021, The Author(s).
- id
- f42e093f-dc30-4731-93c3-a93f460c89d3
- date added to LUP
- 2023-10-04 10:17:46
- date last changed
- 2023-10-09 16:43:06
@article{f42e093f-dc30-4731-93c3-a93f460c89d3, abstract = {{<p>The paper considers a time-adaptive finite element method for determination of drug efficacy in a parameter identification problem (PIP) for a system of ordinary differential equations (ODE) that describes dynamics of the primary human immunodeficiency virus (HIV) infection with drug therapy. Tikhonov’s regularization method, optimization approach and finite element method to solve this problem are presented. A posteriori error estimates in the Tikhonov’s functional and reconstructed parameter are derived. Based on these estimates a time adaptive algorithm is formulated and numerically tested for different scenarios of noisy observations of virus population function. Numerical results show a significant improvement of reconstruction of drug efficacy parameter using the local time-adaptive mesh refinement method compared to the gradient method applied on a uniform time mesh.</p>}}, author = {{Beilina, L. and Eriksson, M. and Gainova, I.}}, issn = {{0971-3514}}, language = {{eng}}, month = {{06}}, publisher = {{Springer}}, series = {{Differential Equations and Dynamical Systems}}, title = {{Time-Adaptive Determination of Drug Efficacy in Mathematical Model of HIV Infection}}, url = {{http://dx.doi.org/10.1007/s12591-021-00572-w}}, doi = {{10.1007/s12591-021-00572-w}}, year = {{2021}}, }