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单词 reduced set of residues
释义
reduced set of residues

Mathematics
  • For n ≥ 2 a reduced set of residues modulo n is a set of integers, one congruent (modulo n) to each of the positive integers less than n which are coprime with n. Thus, {1, 5, 7, 11} is a reduced set of residues modulo 12, as is {1,−1,5,−5}. A reduced set of residues forms an abelian group under multiplication, denoted n*, which has order ϕ‎(n) (see totient function).


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