Abstract
We obtain a dispersion long-time decay in weighted norms for solutions of the 2D Dirac equation with generic potentials. For high energy component we develop the approach of Boussaid relying on the Mourre estimates and the minimal escape velocity estimates of Hunziker, Sigal and Soffer. For the low energy component we obtain the asymptotics of the resolvent near the thresholds in the nonsingular case and apply 2D version of Jensen-Kato lemma on one-and-half partial integration. The results can be applied to the study of asymptotic stability and scattering of solitons for nonlinear 2D Dirac equations.
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