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Irreducible ℜ-Semigroups

✍ Scribed by Takayuki Tamura


Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
899 KB
Volume
63
Category
Article
ISSN
0025-584X

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Irreducible varieties of commutative sem
✍ Mariusz Grech 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 222 KB

In this paper we describe the varieties of commutative semigroups that are meet-and joinirreducible in the lattice of the varieties of commutative semigroups. We apply the method of A. Kisielewicz [Trans. Amer. Math. Soc. 342 (1994) 275-305]. This leads to investigation of the covering relation in t