Let m, n ≥ 0, λ > 1, and R be a rational function with numerator, denominator of degree ≤ m, n, respectively. In several applications, one needs to know the size of the set $\mathcal{S} \subset$ [0, 1 ...
Let ϱ(n) denote the number of positive regular integers (mod n) less than or equal to n and let ϱr(n) (r ≥ 1) be the multidimensional generalization of the arithmetic function ϱ(n). We study the ...