02-47 Yafaev D.
High energy and smoothness asymptotic expansion of the scattering amplitude (129K, LATEX) Feb 4, 02
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Abstract. We find an explicit expression for the kernel of the scattering matrix for the Schr\"odinger operator containing at high energies all terms of power order. It turns out that the same expression gives a complete description of the diagonal singularities of the kernel in the angular variables. The formula obtained is in some sense universal since it applies both to short- and long-range electric as well as magnetic potentials.

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