commensurator

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Commensurator — In group theory, a branch of abstract algebra, the commensurator of a subgroup H of a group G is a specific subgroup of G. Contents 1 Definition 2 Properties 3 See also 4 … Wikipedia
commensurator — noun The number by which two commensurable numbers are divisible an integral number of times … Wiktionary
commensurator — … Useful english dictionary
Commensurability (mathematics) — This article is about the meaning of commensurable and derived words in mathematics. For other senses, see Commensurability (disambiguation). In mathematics, two non zero real numbers a and b are said to be commensurable if a/b is a rational… … Wikipedia

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