The paper is concerned with optimal control problem for a non-linear parabolic equation with nonhomogenous boundary condition and quadratic cost. The control is acting in a nonlinear equation. We derive some results on the existence of optimal controls. Then we treat optimal control problem by Galer
Exponential decay of non-linear wave equation with a viscoelastic boundary condition
✍ Scribed by Jaime E. Muñoz Rivera; Doherty Andrade
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 152 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0170-4214
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✦ Synopsis
We study in this paper the global existence and exponential decay of solutions of the non-linear unidimensional wave equation with a viscoelastic boundary condition. We prove that the dissipation induced by the memory e!ect is strong enough to secure global estimates, which allow us to show existence of global smooth solution for small initial data. We also prove that the solution decays exponentially provided the resolvent kernel of the relaxation function, k decays exponentially. When k decays polynomially, the solution decays polynomially and with the same rate.
📜 SIMILAR VOLUMES
We study on the initial-boundary value problem for some degenerate non-linear wave equations of Kirchhoff type with a strong dissipation: When the initial energy associated with the equations is non-negative and small, a unique (weak) solution exists globally in time and has some decay properties.