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单词 LiouvilleFunction
释义

Liouville function


The Liouville functionDlmfMathworldPlanetmath is defined by λ(1)=1 and λ(n)=(-1)k1+k2++kr, if the prime factorizationMathworldPlanetmath of n>1 is n=p1k1p2k2prkr (where each pi is positive). This functionMathworldPlanetmath is completely multiplicative and the

d|nλ(d)={1if n=m2 for some integer m0otherwise,

where the sum runs over all positive divisorsMathworldPlanetmathPlanetmath of n.

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更新时间:2025/5/5 0:07:59