“…During the last 40 years, there have been many contributions to the exact controllability, stabilizability, and the boundary control (linear and nonlinear) for differents models like the KdV, the improved Boussinesq equation, the Boussinesq equation with variable coefficients, the generalized Boussinesq equation, the Schrödinger equation (see for example, D. Russell in [15], B. Zhang in [19,20], D. Russell and B. Zhang in [16,17], D. Rosier in [13], M. Chapouly in [6], E. Cerpa and E. Crépeau in [4], E. Crépeau in [7], E. Cerpa and I. Rivas in [5], J. Amara and H. Bouzidi in [1], R. Capistrano and M. Cavalcante in [3], among others).…”