Far East Journal of Applied Mathematics

The Far East Journal of Applied Mathematics publishes original research papers and survey articles in applied mathematics, covering topics such as nonlinear dynamics, approximation theory, and mathematical modeling. It encourages papers focusing on algorithm development.

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CONTROL OF SINGULAR DISTRIBUTED SYSTEMS BY CONTROLLABILITY: THE ILL-POSED BACKWARDS HEAT EQUATION

Authors

  • Bylli André Guel
  • Sadou Tao
  • Elie Ouedraogo

Keywords:

singular distributed systems, optimal control, ill-posed backwards heat equation, controllability, inverse problem

DOI:

https://doi.org/10.17654/0972096025005

Abstract

To deal with the ill-posed backwards heat equation, we propose the controllability method. The point of view adopted consists in interpreting the state equation as an inverse problem that allows us to obtain a decoupled and strong singular optimality system for the optimal control-state pair. This further permits to propose an existence criterion for a regular solution of the backwards heat equation. It is important to note that the results are obtained without recourse to a Slater-type assumption.

Received: February 15, 2025
Revised: March 17, 2025
Accepted: March 27, 2025

References

Gregoire Allaire, Introduction a l’analyse numerique et a l’optimisation, Les Editions de l’Ecole Polytechnique, Paris, 2005, 471 pp.

Haim Brezis, Analyse fonctionnelle - Theorie et applications, Mathematiques appliques pour la maitrise, Masson, Paris, 1983, pp. 246.

Rene Dorville, Ousseynou Nakoulima and Abdennebi Omrane, Low-regret control of singular distributed systems: the ill-posed backwards heat equation, Appl. Math. Lett. 17 (2004), 549-552.

Bylli Andre Guel and Ousseynou Nakoulima, The ill-posed Cauchy problem by controllability the elliptic case, Results in Control and Optimization 10 (2023), 100191. DOI: 10.1016/j.rico.2022.100191.

Bylli Andre Guel and Ousseynou Nakoulima, The ill-posed Cauchy problem by controllability: the parabolic case, J. Nonlinear Evol. Equ. Appl. 2022, Paper No. 4, 69-88.

Bylli Andre Guel, Sadou Tao and Elie Ouedraogo, Control of singular distributed systems by controllability: the ill-posed backwards heat equation, SSRN (2024). doi: 10.2139/ssrn.5005950.

Bylli Andre B. Guel, Control of the Cauchy system for an elliptic operator: the controllability method, Abstr. Appl. Anal. (2023). doi: 10.1155/2023/2503169.

Bylli Andre B. Guel, Sadou Tao and Somdouda Sawadogo, Control of the hyperbolic ill-posed Cauchy problem by controllability, Journal of Mathematics Research 15(6) (2023). doi: 10.5539/jmr.v15n6p42.

Jacques-Louis Lions, Controle de systemes distribues singuliers, Methodes Mathematiques de l’Informatique, Bordas, Paris, 1983, 448 pp.

Jacques-Louis Lions, Controle optimal de systemes gouvernes par des equations aux derives partielles, Etudes Mathematiques, Dunod, Paris, 1968, 426 pp.

Jacques-Louis Lions, Quelques methodes de resolution des problemes aux limites non lineaires, Etudes Mathematiques, Dunod, Paris, 1969, 572 pp.

Ousseynou Nakoulima, Controle de systemes mal poses de type elliptique, J. Math. Pures Appl. (9) 73 (1994), 441-453.

Published

2025-03-30

Issue

Section

Articles

How to Cite

CONTROL OF SINGULAR DISTRIBUTED SYSTEMS BY CONTROLLABILITY: THE ILL-POSED BACKWARDS HEAT EQUATION. (2025). Far East Journal of Applied Mathematics, 118(1), 69-94. https://doi.org/10.17654/0972096025005

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