Möbius function

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English[edit]

English Wikipedia has an article on:
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Etymology[edit]

Named after August Ferdinand Möbius (1790–1868), a German mathematician and theoretical astronomer who introduced it in 1832.

Noun[edit]

Möbius function (uncountable)

  1. (combinatorics) A function from the natural numbers to the set {−1, 0, 1} which maps perfect squares to 0, prime numbers to −1, and is multiplicative.
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