von mangoldt function

Fetched 2026-10-26 (cache).

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Proper noun

1. {{lb|en|math}} A certain [[arithmetic]] [[function]] that is neither [[multiplicative]] nor [[additive]]. It is denoted by [[Λ]](''n'') and defined as :<math>\Lambda(n) = \begin{cases} \log p & \mbox{if }n=p^k \mbox{ for some prime } p \mbox{ and integer } k \ge 1, \\ 0 & \mbox{otherwise.} \end{cases}</math>

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