Abstract
We are concerned with the optimal control of time-fractional diffusion equations with missing boundary condition. Using the notion of no-regret control and least (or low) regret control developed by Lions, we first prove that the least regret control problem associated with the boundary fractional diffusion equation has a unique solution. Then we show that this solution converges to the no-regret control which we characterize by a singular optimality system.
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The author is grateful to the referees for their valuable suggestions.
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Mophou, G. Optimal Control for Fractional Diffusion Equations with Incomplete Data. J Optim Theory Appl 174, 176–196 (2017). https://doi.org/10.1007/s10957-015-0817-6
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DOI: https://doi.org/10.1007/s10957-015-0817-6
Keywords
- No-regret control
- Time-fractional differential equation
- Incomplete data
- Optimality system
- Euler–Lagrange formula