Gift, Stephan2008-12-022008-12-022008-12-02https://hdl.handle.net/2139/1378enPlease contact the West Indiana Division at the University of the West Indies,St.Augustine in order to view the full thesis. Contact: wimail@sta.uwi.eduEngineering mathematicsMathematical analysisMathematical optimizationMaxima and minimaExtensions of the maximum principle and the gradient method in optimal controlThesis