Shifted Character Sums with Multiplicative Coefficients, II

K. Gong, C. Jia, M. A. Korolev

Let $f(n)$ be a multiplicative function with $|f(n)|\le 1,q$ be a prime number and $a$ be an integer with $(a,q)=1,\chi$ be a non-principal Dirichlet character modulo $q$. Let $\v…