On the mean value of the functions related to the divisor function on the ring of polynomials over a finite field

V. Iudelevich

Let ${\mathbb{F}}_q[T]$\, be the ring of polynomials over a finite field ${\mathbb{F}}_q$. Let $g:{\mathbb{F}}_q[T]\to \mathbb{R}$ be a multiplicative function such that f…