Our preprints(including some papers published already.)
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Remark on wave front sets of solutions to Schroedinger equation
of a free particle and a harmonic oscillator,
with M. Kobayashi and S. Ito, SUT J. Math. 47(2011), 175-183.
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Representation of Schroedinger operator of a free particle via
short-time Fourier transform and its applications,
with M. Kobayashi and S. Ito, to appear in Tohoku Math. J..
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Characterization of wave front sets in Fourier-Lebesgue spaces and its
applications,
with M. Kobayashi and S. Ito(preprints).