The optimality system is given for a phase-constrained control problem governed by a linear parabolic equation. The control may act on the boundary and the cost function may depend on the boundary values of the final state. The optimality system follows from general results for convex state-constrained control problems by means of the theory of convex duality, using a suitable perturbation

Contact details are reproduced from the original publication and may be historical.

D. Azé

Dép. de Mathématiques, Université de Perpignan, 52 Av. de Villeneuve, 66860 Perpignan, France

S. Bolintinéanu

Dép. de Mathématiques, Université de Perpignan, 52 Av. de Villeneuve, 66860 Perpignan, France

  1. D. Azé, S. Bolintinéanu: A boundary control problem with parabolic dynamic and final boundary observation, Proceedings of the 2nd Catalan Days on Applied Mathematics, Presses Universitaires de Perpignan (1995) 13-28.Google Scholar
  2. V. Barbu, Th. Precupanu: Convexity and Optimization in Banach Spaces, Mathematics and its Applications, East European Series, D. Reidel Publishing Company, 1985.Google Scholar
  3. M. Bergounioux, D. Tiba: General optimality conditions for constrained convex control problems, SIAM J. Control Opt. 34 (1995) 698-711.https://doi.org/10.1137/S0363012994261987Google Scholar
  4. H. Brezis: Analyse Fonctionnelle, Masson, Paris, 1987.Google Scholar
  5. H. Dietrich: Duality theorems for an optimal control problem with a linear unbounded operator, SIAM J. Control Optimization 25 (1987) 1192-1201.https://doi.org/10.1137/0325065Google Scholar
  6. H. O. Fattorini: Optimal control problems with state constraints for semilinear distributedparameter systems, J. Optimization Theory and Appl. 88 (1996) 25-59.https://doi.org/10.1007/BF02192021Google Scholar
  7. H. O. Fattorini, H. Frankowska: Infinite dimensional control problems with state constraints, Proc. IFIP-IIASA Conf., Laxenburg, Austria 1989, Lecture Notes Control and Inf. Sci. 154 (1991) 52-62.https://doi.org/10.1007/BFb0044483Google Scholar
  8. Z. X. He: State constrained control problems governed by variational inequalities, SIAM J. Control and Optimization 25 (1987) 1119-1144.https://doi.org/10.1137/0325061Google Scholar
  9. B. Hu, J. Yong: Pontryagin maximum principle for semilinear and quasilinear parabolic equations with pointwise state constraints, SIAM J. Control and Optimization 33 (1995) 1857-1880.https://doi.org/10.1137/S0363012993250074Google Scholar
  10. V. Jeyakumar: Duality and infinite dimensional optimization, Nonlinear Analysis 15(12) (1990) 1111-1122.https://doi.org/10.1016/0362-546X(90)90047-KGoogle Scholar
  11. X. Li, J. Yong: Optimal Control Theory for Infinite Dimensional Systems, Birkhäuser, Basel, 1994.https://doi.org/10.1007/978-1-4612-4260-4Google Scholar
  12. J.-L. Lions: Optimal Control of Non Well-Posed Distributed Systems, Mathematical Control Theory, Banach Center Publication, Volume 14, PWN - Polish Scientific Publishers, Warsaw, 1985.https://doi.org/10.4064/-14-1-299-311Google Scholar
  13. U. Mackenroth: Convex parabolic control problems with pointwise state constraints, J. Math. Anal. Appl. 87 (1982) 256-277.https://doi.org/10.1016/0022-247X(82)90165-2Google Scholar
  14. M. Moussaoui, A. Seeger: Epsilon-maximum principle of Pontryagin's type and perturbation analysis of convex optimal control problems, SIAM J. Control Optimization 34 (1996) 407-427.https://doi.org/10.1137/S0363012993244878Google Scholar
  15. Pazy: Semigroups of Linear Operators and Applications to Partial Differential Equations, Springer-Verlag 44, 1983.https://doi.org/10.1007/978-1-4612-5561-1Google Scholar
  16. R. T. Rockafellar: Integrals which are convex functionals, II, Pacific J. Math. 39 (1971) 439-469.https://doi.org/10.2140/pjm.1971.39.439Google Scholar
  17. B. Rodrigues, S. Simons: Conjugate functions and subdifferentials in non normed situation, Nonlinear Analysis Theory Methods Appl. 12 (1988) 1069-1078.https://doi.org/10.1016/0362-546X(88)90102-2Google Scholar
  18. R. Temam: Infinite Dimensional Dynamical Systems in Mechanics and Physics, Springer-Verlag 68, 1988.https://doi.org/10.1007/978-1-4684-0313-8Google Scholar
  19. Z. S. Wu, K. L. Teo: Optimal control problems involving second boundary value problems of parabolic type, SIAM J. Control Optimization 21 (1983) 729-757.https://doi.org/10.1137/0321045Google Scholar
  20. H. Zerrik: Regional observability of distributed systems, Int. J. Systems Sci. 25 (1994) 301-313.https://doi.org/10.1080/00207729408928961Google Scholar

D. Azé, S. Bolintinéanu. “Optimality Conditions for Constrained Convex Parabolic Control Problems Via Duality.” Journal of Convex Analysis 7 (2000), No. 1, 1–17. https://doi.org/10.68381/jca07001