Abstract
We prove the identity of two Bäcklund transformations discussed in the literature and the corresponding conservation laws for the nonlinear O(n-σ) model. Furthermore, we exhibit more clearly the relation between the dual transformation and the Noether symmetry.
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Stützler, FJ. Symmetry-relations for the classical two-dimensional nonlinear O(n-σ)-model. Lett Math Phys 8, 167–173 (1984). https://doi.org/10.1007/BF00402231
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DOI: https://doi.org/10.1007/BF00402231