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arXiv 0810.1577math.APmath-phmath.MP
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扰动谐振子解的波前集

Wave front set for solutions to perturbed harmonic oscillators

Shikuan Mao, Shu Nakamura

摘要:

我们考虑了具有调和势的变系数薛定谔方程。我们假设扰动是[Nakamura 2004]意义上的短程型扰动。利用经典散射数据和未微扰谐振子的传播子刻画了方程解的波前集。特别地,我们给出了周期$t=π$的传播的“奇点递归”型定理。

英文摘要:

We consider Schrödinger equations with variable coefficients and the harmonic potential. We suppose the perturbation is short-range type in the sense of [Nakamura 2004]. We characterize the wave front set of the solutions to the equation in terms of the classical scattering data and the propagator of the unperturbed harmonic oscillator. In particular, we give a "recurrence of singularities" type theorem for the propagation of the period $t=π$.

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