Varieties of Topological Groups Generated by Groups with Invariant Compact Neighbourhoods of the Identity
Sidney A. Morris, N. Kelly (1975)
Matematický časopis
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Sidney A. Morris, N. Kelly (1975)
Matematický časopis
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Sidney A. Morris (1974)
Colloquium Mathematicae
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Sidney A. Morris (1972)
Colloquium Mathematicae
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Sidney Morris (1974)
Fundamenta Mathematicae
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Sidney A. Morris (1982)
Colloquium Mathematicae
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Sidney A. Morris (1974)
Matematický časopis
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B. Bajorska, O. Macedońska (2001)
Colloquium Mathematicae
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Let G* denote a nonprincipal ultrapower of a group G. In 1986 M.~Boffa posed a question equivalent to the following one: if G does not satisfy a positive law, does G* contain a free nonabelian subsemigroup? We give the affirmative answer to this question in the large class of groups containing all residually finite and all soluble groups, in fact, all groups considered in traditional textbooks on group theory.
Sidney A. Morris (1973)
Colloquium Mathematicae
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Shlepkin, A.K., Rubashkin, A.G. (2004)
Sibirskij Matematicheskij Zhurnal
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W. F. Lamartin
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CONTENTSIntroduction................... 51. k-spaces.................... 62. k-groups.................... 14References..................... 32
Su-Shing Chen, Richard W. Yoh (1974)
Colloquium Mathematicae
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