For a Hecke-Maass newform F of level N and with pth Hecke eigenvalue a(p) where p is a prime, the generalized Ramanujan conjecture
asserts that a(p) is bounded by 2 in the absolute value for ( p, N) = 1. In this talk we will survey the recent results and developments
centered on this intriguing problem.
Links:
[1] http://www.mpim-bonn.mpg.de/taxonomy/term/39
[2] http://www.mpim-bonn.mpg.de/node/3444
[3] http://www.mpim-bonn.mpg.de/node/246