Mangazeev, Vladimir; Sergeev, S M
We present a system of integrable second-order differential equations for three fields in the three-dimensional space-time. The system is obtained as the continuum limit of discrete equations for a triplet of tau-fnnctions. We give a parameterization of the soliton solutions of equations of motion, describe the linear problem, and establish the integrability of the corresponding classical field theory.
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