“School of Mathematics”
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Paper IPM / M / 173 |
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Abstract: | |||||
Let F∞ be a free group on a countable set {x1, x2, …} and ν be a variety of groups, defined by the set of outer commutators V, in the free generators xi's. The paper is devoted to give the complete structure of a ν-covering of ν-perfect groups. Furthermore necessary and sufficient conditions for the universality of a ν-central extension by a group and its ν-covering group will be presented. Download TeX format |
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