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Incorrect Estimates by the Four Wave Interaction(FWI) system for the Fermi‐Pasta‐Ulam(FPU) System
Author(s) -
Sunny Danish Ali,
Farooq Sarfraz
Publication year - 2019
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201900430
Subject(s) - nonlinear system , fermi gamma ray space telescope , physics , statistical physics , quantum mechanics
Recently it was proved in [9] that the nonlinear Schrödinger equation fails to predict accurately the dynamics of an original system because of unstable resonances. By extending the ideas in [9], we prove a similar result for the Four Wave Interaction System.
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