Rankin–Selberg method
= Rankin–Selberg method
{wiki=Rankin–Selberg_method}
The Rankin-Selberg method is a powerful technique in analytic number theory, used primarily to study L-functions attached to modular forms and automorphic forms. It is named after the mathematicians Robert Rankin and A. Selberg, who developed the theory in the mid-20th century. The method involves the construction of an "intertwining" integral that relates two L-functions.