Finite-difference and pseudo-spectral methodsfor the numerical simulations of in vitro human tumor cellpopulation kinetics

Z. Jackiewicz; B. Zubik-Kowal; B. Basse

doi:10.3934/mbe.2009.6.561

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2009, Volume 6, Issue 3: 561-572. Doi: 10.3934/mbe.2009.6.561

This issue Previous Article The dynamics of tumor growth and cells pattern morphology Next Article On the global dynamics of a model for tumor immunotherapy

Finite-difference and pseudo-spectral methods for the numerical simulations of in vitro human tumor cell population kinetics

1.
Department of Mathematics and Statistics, Arizona State University, Tempe, Arizona 85287
2.
Department of Mathematics, Boise State University, 1910 University Drive, Boise, Idaho 83725
3.
Department of Mathematics and Statistics, University of Canterbury, Private Bag 4800

Received: December 31, 2007

Revised: January 31, 2009

Published: May 2009

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Abstract

Pseudo-spectral approximations are constructed for the model equations describing the population kinetics of human tumor cells in vitro and their responses to radiotherapy or chemotherapy. These approximations are more efficient than finite-difference approximations. The spectral accuracy of the pseudo-spectral method allows us to resolve the model with a much smaller number of spatial grid-points than required for the finite-difference method to achieve comparable accuracy. This is demonstrated by numerical experiments which show a good agreement between predicted and experimental data.

Keywords:

Population kinetics of human cancer cells in vitro,
human tumor cells,
cell cycle dynamics,
mathematical model,
pseudo-spectral methods,
finite-difference methods.

Mathematics Subject Classification: Primary: 45K05, 34K28; Secondary: 62P10.

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Finite-difference and pseudo-spectral methods for the numerical simulations of in vitro human tumor cell population kinetics

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