Free Compact Abelian Groups
Sidney A. Morris (1972)
Matematický časopis
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Sidney A. Morris (1972)
Matematický časopis
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Vladimir Pestov, Dmitri Shakhmatov (1998)
Colloquium Mathematicae
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Answering a 1982 question of Sidney A. Morris, we construct a topological group G and a subspace X such that (i) G is algebraically free over X, (ii) G is relatively free over X, that is, every continuous mapping from X to G extends to a unique continuous endomorphism of G, and (iii) G is not a varietal free topological group on X in any variety of topological groups.
Nurettin Bağırmaz, İlhan İçen, Abdullah F. Özcan (2016)
Topological Algebra and its Applications
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The concept of topological group is a simple combination of the concepts of abstract group and topological space. The purpose of this paper is to combine the concepts of topological space and rough groups; called topological rough groups on an approximation space.
G. J. Michaelides (1975)
Colloquium Mathematicae
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Hans-E. Porst (1988)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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Edward T. Ordman (1974)
Colloquium Mathematicae
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Edward T. Ordman (1974)
Colloquium Mathematicae
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P. Doyle (1975)
Fundamenta Mathematicae
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Sidney A. Morris (1974)
Matematický časopis
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