For 1D NLS without external parameters, the paper constructs non-resonant infinite-dimensional Kronecker tori (almost periodic, not quasi-periodic) arbitrarily close to Kuksin-Pöschel KAM tori.
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Infinite dimensional invariant tori for nonlinear Schr\"odinger equations
For 1D NLS without external parameters, the paper constructs non-resonant infinite-dimensional Kronecker tori (almost periodic, not quasi-periodic) arbitrarily close to Kuksin-Pöschel KAM tori.