Abstract

The equations of dynamics for an easy-plane anisotropy uniaxial ferromagnet St-S*Sxx+ beta (S.n)S*n=0 S2=1 n=(0,0,1) beta >0 is shown to be gauge equivalent to the equation (vt+vxx-2/v/2v+2/vx/2v/( beta -4/v/2)-(vx/2) delta ln( beta -4/v)2)/ delta x=0. The formulae that relate the solutions of these equations for natural boundary conditions are derived.

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