On a Rankin-Selberg integral of three Hermitian cusp forms

Thanasis Bouganis, Rafail Psyroukis

Let $K=\mathbb{Q}(i)$. We study the Petersson inner product of a Hermitian Eisenstein series of Siegel type on the unitary group $U_5(K)$, diagonally-restricted on $U_2(K)\time…