Weakly - damped focusing nonlinear Schrodinger equations with Dirichlet control
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KünyeÖZSARI, T. (2012). Weakly - damped focusing nonlinear Schrodinger equations with Dirichlet control. Journal of Mathematical Analysis and Applications, 389 (1), pp. 84-97. http://dx.doi.org/10.1016/j.jmaa.2011.11.053.
In this article we consider the weakly damped focusing nonlinear Schrodinger equations on bounded domains at the natural H-1-energy level with Dirichlet control acting on a portion of the boundary. We introduce the dynamic extension method for homogenizing the inhomogeneous boundary input. Then, we construct approximate solutions using monotone operator theory. A hidden trace regularity is proved to control the norm of the solutions in a global sense. This allows the use of compactness techniques by which we prove the existence of weak solutions. Finally, using multiplier techniques, we prove the exponential decay of solutions under the assumption that the boundary control also decays in a similar fashion.