Integrable inhomogeneous NLS equations are equivalent to the standard NLS
classification
🌊 nlin.SI
keywords
equationsequivalentinhomogeneousintegrablestandardappearingclaimingclass
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A class of inhomogeneous nonlinear Schr\"odinger equations (NLS), claiming to be novel integrable systems with rich properties continues appearing in PhysRev and PRL. All such equations are shown to be not new but equivalent to the standard NLS, which trivially explains their integrability features.
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