For the shifted convolution sum
where are the Fourier coefficients of an Maass form , are those of an Maass or holomorphic form , and , we establish the bound
The bound is uniform with respect to the shift .
"Shifted convolution sums for ." Duke Math. J. 162 (13) 2345 - 2362, 1 October 2013. https://doi.org/10.1215/00127094-2371416