On the Fourier expansion of Gan-Gurevich lifts on the exceptional group of type $G_2$

Henry H. Kim, Takuya Yamauchi

By using the degenerate Whittaker functions, we study the Fourier expansion of the Gan-Gurevich lifts which are Hecke eigen quaternionic cusp forms of weight $k$ ($k\ge 2$, even)…