Usage History of 'isogenies'

The following chart shows how frequently 'isogenies' appeared in printed materials over time. For example, the word 'isogenies' occurred 25 times in books in 1967 and 14 times in 2007. From 1967 to 2007, the word 'isogenies' was used a total of 140 times in books scanned by Google. See Reference: Google Ngram project.

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