Literature Cited
L. D. Faddeev, in: Proc. International Conference on Mathematical Problems in Quantum Field Theory and Quantum Statistics [in Russian], Nauka (1975), p. 218.
N. Kh. Ibragimov, Lie Groups in Some Problems of Mathematical Physics [in Russian], NGU, Novosibirsk (1972).
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Additional information
Dnepropetrovsk State University. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 44, No. 3, pp. 410–413, September, 1980.
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Vladimirov, S.A. Symmetry groups of the Lagrangians of chiral fields with values on S2 . Theor Math Phys 44, 829–831 (1980). https://doi.org/10.1007/BF01029051
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DOI: https://doi.org/10.1007/BF01029051