Fourier Coefficients and Algebraic Cusp Forms on $\mathrm{U}(2,n)$

Anton Hilado, Finn McGlade, Pan Yan

We establish a theory of scalar Fourier coefficients for a class of non-holomorphic, automorphic forms on the quaternionic real Lie group $\mathrm{U}(2,n)$. By studying the theta l…