124 citations · 452 across the 28 of their papers we have counts for
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math-ph2000★ 124 cited
Time Quasi-periodic unbounded perturbations of Schrödinger operators and KAM methods
Dario Bambusi, Sandro Graffi
We eliminate by KAM methods the time dependence in a class of linear differential equations in subject to an unbounded, quasi-periodic forcing. This entails the pure-point…
math-ph2000★ 33 cited
Absolute Continuity of the Floquet Spectrum for a Nonlinearly Forced Harmonic Oscillator
Sandro Graffi, Kenji Yajima
We prove that the Floquet spectrum of a class of time-periodic Schroedinger equations under a a mildly nonlinear resonant forcing is purely absolutely continuous.