Riesz means of the Dedekind function II

Tetsuya Inaba, Shōta Inoue

Let $\psi$ denote the Dedekind totient function defined by $\psi (n)={\sum }_{d|n}d{\mu }^2ł(n/d\mathring{)}$ with $\mu$ being the Möbius function. We shall consider the $k$-th Riesz mean of the arith…