Abstract
The object of extension theory is to show how a group can be constructed from a normal subgroup and its quotient group. In this subject concepts from homological algebra arise naturally and contribute greatly to our understanding of it. The necessary homological machinery, including the definitions of the (co)homology groups, is presented in 11.2.
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© 1996 Springer Science+Business Media New York
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Robinson, D.J.S. (1996). The Theory of Group Extensions. In: A Course in the Theory of Groups. Graduate Texts in Mathematics, vol 80. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-8594-1_11
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DOI: https://doi.org/10.1007/978-1-4419-8594-1_11
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-6443-9
Online ISBN: 978-1-4419-8594-1
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