Finite Semigroups Whose Varieties Have Uncountably Many Subvarieties
نویسندگان
چکیده
منابع مشابه
Uncountably Many Arcs in S Whose Complements Have Non-isomorphic, Indecomposable Fundamental Groups
An uncountable collection of arcs in S is constructed, each member of which is wild precisely at its endpoints, such that the fundamental groups of their complements are non-trivial, pairwise non-isomorphic, and indecomposable with respect to free products. The fundamental group of the complement of a certain Fox-Artin arc is also shown to be indecomposable.
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 2000
ISSN: 0021-8693
DOI: 10.1006/jabr.1999.8280