Browsing Mathematics publications (MU) by Title "Arithmetic properties of φ(n)/λ(n) and the structure of the multiplicative group modulo n"
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Arithmetic properties of φ(n)/λ(n) and the structure of the multiplicative group modulo n
(European Mathematical Society, 2006)For a positive integer n, we let φ(n) and λ(n) denote the Euler function and the Carmichael function, respectively. We define ξ(n) as the ratio φ(n)/λ(n) and study various arithmetic properties of ξ(n).