Asymptotic stability and blow up for a semilinear damped wave equation   with dynamic boundary conditions
  In this paper we consider a multi-dimensional wave equation with dynamic boundary conditions, related to the Kelvin-Voigt damping. Global existence and asymptotic stability of solutions starting in a stable set are proved. Blow up for solutions of the problem with linear dynamic boundary conditions with initial data in the unstable set is also obtained. 
St\'ephane Gerbi (LAMA), Belkacem Said-Houari