Non-Linear Additive Twists of ${\mathrm{GL}}_3$ Hecke Eigenvalues

Ikuya Kaneko, Wing Hong Leung

We bound non-linear additive twists of ${\mathrm{GL}}_3$ Hecke eigenvalues, improving upon the work of Kumar-Mallesham-Singh (2022). The proof employs the DFI circle method with st…