Shifted Character Sums with Multiplicative Coefficients

Ke Gong, Chaohua Jia

Let $f(n)$ be a multiplicative function satisfying $|f(n)|\le 1$, $q$ $(\le N^2)$ be a prime number and $a$ be an integer with $(a,q)=1$, $\chi$ be a non-principal Dirichlet chara…