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The initial-boundary value problem in a bounded domain with moving boundaries and nonhomogeneous boundary conditions for a higher order nonlinear Schr\"odinger (HNLS) equation is considered. Existence and uniqueness of global weak solutions are proved as well as the stability of the solution. Additionally, a conservative numerical method of finite differences is introduced that also verifies stability properties with respect to the L²-norm, and along with proving its convergence, some interesting numerical examples are shown that illustrate the behavior of the solution.
Mollisaca et al. (Wed,) studied this question.
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