Abstract
This paper is concerned with a theoretical and numerical study for the initial-boundary value problem for a linear hyperbolic equation with variable coefficient and acoustic boundary conditions. On the theoretical results, we prove the existence and uniqueness of global solutions, and the uniform stability of the total energy. Numerical simulations using the finite element method associated with the finite difference method are employed, for one-dimensional and two-dimensional cases, to validate the theoretical results. In addition, numerically the uniform decay rate for energy and the order of convergence of the approximate solution are also shown.
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Acknowledgements
A. A. Alcantara was partially supported by CAPES-Brazil. M. A. Rincon was partially supported by CNPq-Brazil.
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Communicated by Luz de Teresa.
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Alcântara, A.A., Clark, H.R. & Rincon, M.A. Theoretical analysis and numerical simulation for a hyperbolic equation with Dirichlet and acoustic boundary conditions. Comp. Appl. Math. 37, 4772–4792 (2018). https://doi.org/10.1007/s40314-018-0601-y
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DOI: https://doi.org/10.1007/s40314-018-0601-y
Keywords
- Hyperbolic equation
- Acoustic boundary conditions
- Existence and uniqueness of solutions
- Energy decay
- Finite element method
- Finite difference method