Birkhoff normal form in low regularity for the nonlinear quantum harmonic oscillator

Stability in context of PDEs (35B35) NLS equations (nonlinear Schrödinger equations) (35Q55) Stability problems for infinite-dimensional Hamiltonian and Lagrangian systems (37K45) Resonance in context of PDEs (35B34) Perturbations, KAM theory for infinite-dimensional Hamiltonian and Lagrangian systems (37K55)

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