Literature Cited
S. I. Adyan, “Defining relations and algorithmic problems for groups and semigroups”, Tr. Mat. Inst. Akad. Nauk SSSR,85 (1966).
O. A. Sarkisyan, “On the connection between algorithmic problems in groups and semigroups,” Dokl. Akad. Nauk SSSR,227, No. 6, 1305–1307 (1976).
Additional information
Translated from Algebra i Logika, Vol. 15, No. 6, pp. 611–621, November–December, 1976.
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Adyan, S.I. Transformations of words in a semigroup presented by a system of defining relations. Algebra and Logic 15, 379–386 (1976). https://doi.org/10.1007/BF01877477
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DOI: https://doi.org/10.1007/BF01877477