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The variance of the Euler totient function. (arXiv:1706.04028v1 [math.NT])

来源于:arXiv
In this paper we study the variance of the Euler totient function (normalized to $\varphi(n)/n$) in the integers $\mathbb{Z}$ and in the polynomial ring $\mathbb{F}_q[T]$ over a finite field $\mathbb{

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