Hybrid Weyl Subconvexity over Imaginary Quadratic Fields

Zhengxiao Gao, Changlin Li, Zhi Qi

On imaginary quadratic fields, we establish the ${\mathrm{GL}}_2$ Bessel $\delta$-method and prove the hybrid Weyl-type subconvexity bound for ${\mathrm{GL}}_2\times {\mathrm{GL}}_1$ twisted…