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Existence theorems for optimal control of quasilinear parabolic partial differential equations

Published online by Cambridge University Press:  17 February 2009

E. S. Noussair
Affiliation:
School of Mathematics, University of N.S.W., P.O. Box 1, Kensington, N.S.W. 2033
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Abstract

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The question on existence of optimal controls for a system governed by quasilinear parabolic partial differential equations which is linear in the control variables is considered. It is shown that whenever the controls converge in the weak * topology of L, the corresponding solutions converge uniformly. Using this result and results on lower semi-continuity of integral functionals, existence theorems for optimal controls are proved.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1979

References

[1]Berkovitz, L. D., “A lower closure theorem for abstract control problems with Lp-bounded controls”, J. Optimization Theory & Appl. 14 (1974), 521528.CrossRefGoogle Scholar
[2]Berkovitz, L. D., “Lower semicontinuity of integral functionals”, Trans. Amer. Math. Soc. 192 (1974), 5157.CrossRefGoogle Scholar
[3]Fleming, W. H., “Optimal control of partially observable diffusions”, SIAM J. Control 6 (1968), 194214.CrossRefGoogle Scholar
[4]Gossez, J. P., “Existence of optimal controls for some non-linear processes”, J. optimization Theory & Appl. 3 (1969), 8997.CrossRefGoogle Scholar
[5]Himmelberg, C. J., Jacobs, M. Q. and Van Vleck, F. S., “Measurable multifunctions, selectors and Filippov's implicit function lemma”, J. Math. Anal. Appl. 25 (1969), 276289.CrossRefGoogle Scholar
[6]Ioffe, A. D., “On lower semicontinuity of integral functions I”, SIAM J. Control & Optim. 18 (1977), 521538.CrossRefGoogle Scholar
[7]Jacobs, M. Q., “Some existence theorems for linear optimal control problems”, SIAM J. Control 5 (1967), 418437.CrossRefGoogle Scholar
[8]Lee, E. B. and Markus, L., “Optimal control for nonlinear processes”, Arch. Rat. Mech. Anal. 8 (1961), 3658.CrossRefGoogle Scholar
[9]Noussair, E. S., Nababan, S. and Teo, K. L., “On the existence of optimal controls for quasilinear parabolic partial differential equations”, submitted for publication.Google Scholar
[10]Vidyasagar, M., “On the existence of optimal controls”, J. Optimization Theory & Appl. 17 (1975), 273278.CrossRefGoogle Scholar