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20032026
most citedThe inverse problem for perturbed harmonic oscillator on the half-line with Dirichlet boundary conditions

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math.DS2009

Hamiltonian and small action variables for periodic dNLS

Evgeny L. Korotyaev

We consider the defocussing NLS equation with small periodic initial condition. A new approach to study the Hamiltonian as a function of action variables is demonstrated. The probl…

math.DS2009

Estimates for solutions of KDV on the phase space of periodic distributions in terms of action variables

Evgeny L. Korotyaev

We consider the KdV equation on the Sobolev space of periodic distributions. We obtain estimates of the solution of the KdV in terms of action variables.