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A non-extendable abstract kernel

Kovacs, L


A modification is suggested for a 1934 example of Reinhold Baer which shows that not all homomorphisms C → (Aut A)/(Inn A) arise from conjugation action in group extensions 1 → A → B → C → 1.

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Illinois Journal of Mathematics


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