期刊
ANNALES HENRI POINCARE
卷 11, 期 6, 页码 1007-1021出版社
BIRKHAUSER VERLAG AG
DOI: 10.1007/s00023-010-0046-3
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We investigate the rigorous application of the renormalization group method to (singular) perturbation theory for nonlinear partial differential equations. As a paradigm, we consider the concrete example of the nonlinear Schrodinger equation with quadratic nonlinearity in three spatial dimensions. We obtain an approximate solution using the RG method together with an estimate of the difference between the true and approximate solutions. Our analysis applies to cases where (space-time) resonances are present.
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