Na. Belov et al., ON THE SOLUTIONS OF THE ANISOTROPIC HEISENBERG EQUATION, Journal of physics. A, mathematical and general, 27(16), 1994, pp. 5607-5621
A method based on the discrete group of the inner symmetry of integrab
le systems is used to derive explicit formulae for soliton-like soluti
ons of Heisenberg ferromagnets (with biaxial or uniaxial anisotropy).
The solutions are given in terms of expressions which involve ratios o
f two determinants.