Abstract
We analyze the sidewise controllability for the variable coefficients one-dimensional wave equation. The control is acting on one extreme of the string with the aim that the solution tracks a given path or profile at the other free end. This sidewise profile control problem is also often referred to as nodal profile or tracking control. The problem is reformulated as a dual observability property for the corresponding adjoint system, which is proved by means of sidewise energy propagation arguments in a sufficiently large time, in the class of BV-coefficients. We also present a number of open problems and perspectives for further research.
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Acknowledgements
Authors thank Martin Gugat (FAU) for fruitful discussions. This work was done while the first author was visiting FAU-Erlangen during a sabbatical year. The second author has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 694126-DyCon), the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 765579-ConFlex.D.P., the Alexander von Humboldt-Professorship program, the Transregio 154, Mathematical Modelling, Simulation and Optimization using the Example of Gas Networks, of the German DFG, project C08 and by Grant MTM2017-92996-C2-1-R COSNET of MINECO (Spain).
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Communicated by Boris S. Mordukhovich.
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Saraç, Y., Zuazua, E. Sidewise Profile Control of 1-D Waves. J Optim Theory Appl 193, 931–949 (2022). https://doi.org/10.1007/s10957-021-01986-w
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DOI: https://doi.org/10.1007/s10957-021-01986-w
Keywords
- 1-D wave equations
- Sidewise profile controllability
- Nodal profile control
- BV-coefficients
- Sidewise observability
- Sidewise energy estimates