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Energy-momentum relation for solitary waves of relativistic wave equations

T. V. Dudnikova, A. I. Komech, H. Spohn

math-pharXiv:math-ph/0508045

Abstract

Solitary waves of relativistic invariant nonlinear wave equation with symmetry group U(1) are considered. We prove that the energy-momentum relation for spherically symmetric solitary waves coincides with the Einstein energy-momentum relation for point particles.

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