On the relative Langlands duality for ${\mathrm{Sp}}_{2n}\backslash {\mathrm{GL}}_{2n+1}$ (with an appendix by Zeyu Wang)

Weixiao Lu, Zeyu Wang, Guodong Xi

We verify the relative Langlands duality conjecture proposed by Ben-Zvi, Sakellaridis, Venkatesh for the hyperspherical Hamiltonian variety $T^*(\operatorname{Sp}_{2n}\backslash \o…