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Stabilization of the wave equation with interior input delay and mixed Neumann-Dirichlet boundary

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  • This paper considers the stabilization of a wave equation with interior input delay: $\mu_1u(x,t)+\mu_2u(x,t-\tau)$, where $u(x,t)$ is the control input. A new dynamic feedback control law is obtained to stabilize the closed-loop system exponentially for any time delay $\tau>0$ provided that $|\mu_1|\neq|\mu_2|$. Moreover, some sufficient conditions are given for discriminating the asymptotic stability and instability of the closed-loop system.
    Mathematics Subject Classification: Primary: 35B35, 93D15; Secondary: 93C20.


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