“…Here ν * q ,d g(z σ 0 ) = g(ν q ,d (z σ 0 )) = g((ν q ,d z 0 ) σ ); Indeed, one can check (e.g., by using the adelic formulation of ν q ,d and of the Heegner points given in [BD96]) that ν q ,d z 0 is a Heegner point on X 0 (q − , q ) and then, since ν q ,d is defined over Q, it commutes with the Galois action. This reduces us to the case where g is an L 2 -normalized Maass newform of level q + .…”