Expansive transformation semigroups of endomorphisms
نویسندگان
چکیده
منابع مشابه
compactifications and representations of transformation semigroups
this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...
15 صفحه اولGenerating transformation semigroups using endomorphisms of preorders, graphs, and tolerances
Let ΩΩ be the semigroup of all mappings of a countably infinite set Ω. If U and V are subsemigroups of ΩΩ, then we write U ≈ V if there exists a finite subset F of ΩΩ such that the subgroup generated by U and F equals that generated by V and F . The relative rank of U in ΩΩ is the least cardinality of a subset A of ΩΩ such that the union of U and A generates ΩΩ. We study the notions of relative...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 1966
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm-59-3-313-321