Mathematical Sciences Classification System
81Uxx - Scattering theory 
[See also  34A55,  34L25,  34L40,  35P25,  47A40]
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                            81U052-body potential scattering theory [See also 34E20 for WKB methods]
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                            81U10n-body potential scattering theory
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                            81U15Exactly and quasi-solvable systems
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                            81U20S-matrix theory, etc.
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                            81U30Dispersion theory, dispersion relations
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                            81U35Inelastic and multichannel scattering
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                            81U40Inverse scattering problems
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                            81U99None of the above, but in this section