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We study the spin and isospin structure of pion-nucleon scattering amplitudes in the class of models, including the Skyrme model, in which the nucleon arises as a soliton built of pion fields. We derive general linear relations among partialwave amplitudes for the processes TN + TN and TN + TA and show that these relations are in reasonably good agreement with experiment.doi:10.1103/physrevd.32.58 pmid:9955987 fatcat:mo7mhcim6zb2xmycsdivrjsahu