Geodesic
Low-frequency asymptotics of the Green's functions of magnets with spontaneously broken symmetry
Teoretičeskaâ i matematičeskaâ fizika, Tome 89 (1991) no. 2, pp. 293-303 
M. Yu. Kovalevsky; A. L. Shishkin. Low-frequency asymptotics of the Green's functions of magnets with spontaneously broken symmetry. Teoretičeskaâ i matematičeskaâ fizika, Tome 89 (1991) no. 2, pp. 293-303. http://geodesic.mathdoc.fr/item/TMF_1991_89_2_a12/
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     title = {Low-frequency asymptotics of the {Green's} functions of magnets with spontaneously broken symmetry},
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Voir la notice de l'article provenant de la source Math-Net.Ru

The Hamiltonian approach is used to obtain dynamical equations of magnets with complete spontaneous breaking of the symmetry with respect to spin rotations in the external field. The two-time Green's functions and the spin-wave spectra in the hydrodynamic limit are found.

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