The Landau-Selberg-Delange method for products of Dirichlet $L$-functions, and applications, I

Akash Singha Roy

The Landau-Selberg-Delange method gives precise asymptotic formulas for the partial sums ${\sum }_{n\le x}{a}_n$ of a Dirichlet series ${\sum }_n{a}_n/n^s$ that behaves like a compl…