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Scientific notes and problems
Some types of elements of a semigroup invariant in a group
P. G. Kontorovich, A. D. Katsman
Received: 03.06.1955
Citation:
P. G. Kontorovich, A. D. Katsman, “Some types of elements of a semigroup invariant in a group”, Russian Math. Surveys, 11:3 (1956)
Linking options:
https://www.mathnet.ru/eng/rm7799 https://www.mathnet.ru/eng/rm/v11/i3/p145
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