On the outer automorphism groups of finitely generated, residually finite groups
classification
🧮 math.GR
keywords
groupgroupsautomorphismfinitefinitelygeneratedouterresidually
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Bumagin-Wise posed the question of whether every countable group can be realised as the outer automorphism group of a finitely generated, residually finite group. We give a partial answer to this problem for recursively presentable groups.
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