Finite Semigroups Whose Varieties Have U
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Marcel Jackson
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Article
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2000
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Elsevier Science
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English
β 174 KB
For several large classes of semigroups we provide a description of all semigroups which generate varieties with uncountably many subvarieties. These include the class of all Rees quotients of free monoids, the class of finite orthodox monoids, the class of monoids of index greater than two, and the