September  2009, 12(2): 415-438. doi: 10.3934/dcdsb.2009.12.415

Scheduling of angiogenic inhibitors for Gompertzian and logistic tumor growth models


Department of Mathematics and Statistics, Southern Illinois University Edwardsville, Edwardsville, IL 62026


Dept. of Mathematics and Computer Science, St. Louis University, St. Louis, MO 63103, United States


Dept. of Electrical and Systems Engineering, Washington University, St. Louis, Missouri, 63130-4899

Received  August 2008 Revised  April 2009 Published  July 2009

The problem of scheduling a given amount of angiogenic inhibitors is considered as an optimal control problem with the objective of maximizing the achievable tumor reduction. For a dynamical model for the evolution of the carrying capacity of the vasculature formulated in [15] optimal controls are computed for both a Gompertzian and logistic model of tumor growth. While optimal controls for the Gompertzian model typically contain a segment along which the control is singular, for the logistic model optimal controls are bang-bang with at most two switchings.
Citation: Urszula Ledzewicz, James Munden, Heinz Schättler. Scheduling of angiogenic inhibitors for Gompertzian and logistic tumor growth models. Discrete & Continuous Dynamical Systems - B, 2009, 12 (2) : 415-438. doi: 10.3934/dcdsb.2009.12.415

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