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math.NT2022
Second moment of the light-cone Siegel transform and applications
Dubi Kelmer, Shucheng Yu
We study the light-cone Siegel transform, transforming functions on the light cone of a rational indefinite quadratic form to a function on the homogenous space $\text{SO}^+_Q(…
math.NT2022
Fourier expansion of light-cone Eisenstein series
Dubi Kelmer, Shucheng Yu
In this work we give an explicit formula for the Fourier coefficients of Eisenstein series corresponding to certain arithmetic lattices acting on hyperbolic n+1-space. As a consequ…