Abstract
In this paper, we study a wave equation with local Kelvin-Voigt damping, which models one-dimensional wave propagation through two segments consisting of an elastic and a viscoelastic medium. Under the assumption that the damping coefficients change smoothly near the interface, we prove that the semigroup corresponding to the system is eventually differentiable.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 443-454 |
| Number of pages | 12 |
| Journal | ESAIM - Control, Optimisation and Calculus of Variations |
| Volume | 23 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 1 2017 |
Bibliographical note
Publisher Copyright:© EDP Sciences, SMAI 2017.
Keywords
- Eventual differentiability of semigroup
- Local Kelvin-Voigt damping
- Semigroup