Invariant semigroups of othodox semigroups.
T.S. Blyth, M.H. Almeida-Santos (1996)
Semigroup forum
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Displaying similar documents to “Four-part semigroups - semigroups of Boolean operations”
Invariant semigroups of othodox semigroups.
Abundant semigroups with a multiplicative type A transversal.
A. El-Qallali (1993)
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P-regular semigroups.
M. Yamada, M.K. Sen (1989)
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Some remarks on T-semigroups
Janusz Woś (1982)
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Academician Štefan Schwarz awarded the 1980 National Prize of the Slovak Socialist Republic
Ladislav Mišík (1981)
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Abundant semigroups with a medical idempotent.
F. Jing (1995)
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On the representation of abstract semigroups by transformation semigroups : Computer investigations.
K. Todorov, G. Bijev (1991)
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Regular * semigroups.
T.E. Nordahl, H.E. Scheiblich (1978)
Semigroup forum
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On V n -semigroups
Ze Gu, Xilin Tang (2015)
Open Mathematics
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In this paper, we give some new characterizations of orthodox semigroups in terms of the set of inverses of idempotents. As a generalization, a new class of regular semigroups, namely Vn-semigroups, is introduced. Also, we give a characterization of Vn-semigroups and investigate some properties of Vn-semigroups. Furthermore, we show that the class of Vn-semigroups is closed under direct products and homomorphic images. However, regular subsemigroups of Vn-semigroups (n ≥ 2) are not necessarily...