| 单词 | Liouville function | 
| 释义 | Liouville function [`lyü´vēl ´fǝŋk·shǝn]  MATHEMATICS A function λ(n ) on the positive integers such that λ(1) = 1, and for n ≧ 2, λ(n ) is -1 raised to the number of prime factors of n, with repeated factors counted the number of times they appear.  | 
	
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