the discrete nonlinear Schrodinger equation mathematical analysis numerical computations pdf free download. We obtain solutions of the discrete nonlinear Schr¨odinger equation with an impurity center in two ways. In the first of them, we construct the wave function as a series in a certain parameter. In the second, approximate method, we obtain the wave function in the continuum limit. We compare the obtained solutions with numerical results, and the relative accuracy of the solution in the form of a series does not exceed 10 −15 in order of magnitude.
the discrete nonlinear schrodinger equation mathematical analysis numerical computations pdf free download
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