Baer sums for a natural class of monoid extensions |
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Authors: | Faul Peter F |
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Institution: | 1.Department of Pure Mathematics and Statistical Sciences, University of Cambridge, Cambridge, UK ; |
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Abstract: | Semigroup Forum - It is well known that the set of isomorphism classes of extensions of groups with abelian kernel is characterized by the second cohomology group. In this paper we generalise this... |
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