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Magnetic scattering at low energy in two dimensions

Published online by Cambridge University Press:  22 January 2016

Hideo Tamura
Affiliation:
Department of Mathematics, Okayama University, Okayama 700-8530, Japan, tamura@math.okayama-u.ac.jp
Corresponding
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Abstract

We study the asymptotic behavior at low energy of scattering amplitudes in two dimensional magnetic fields with compact support. The obtained result depends on the total flux of magnetic fields. It should be noted that magnetic potentials do not necessarily fall off rapidly at infinity. The main body of argument is occupied by the resolvent analysis at low energy for magnetic Schrödinger operators with perturbations of lang-range class. We can show that the dimension of resonance spaces at zero energy does not exceed two. As a simple application, we also discuss the scattering by magnetic field with small support and the convergence to the scattering amplitude by δ-like magnetic field.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1999

References

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