Economical adjunction of square roots to groups
classification
🧮 math.GR
keywords
groupsquareadjunctionalmostanswerbestcontaineconomical
read the original abstract
How large must an overgroup of a given group be in order to contain a square root of any element of the initial group? We give an almost exact answer to this question (the obtained estimate is at most twice worse than the best possible) and state several related open questions.
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