most citedOn Hermitian Eisenstein series of degree 2

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math.NT2023

Automorphic products that are singular modulo primes

Haowu Wang, Brandon Williams

We use Rankin--Cohen brackets on O(n, 2) to prove that the Fourier coefficients of reflective Borcherds products often satisfy congruences modulo certain primes.

math.NT2022

Mathieu moonshine and Borcherds products

Haowu Wang, Brandon Williams

The twisted elliptic genera of a surface associated with the conjugacy classes of the Mathieu group are known to be weak Jacobi forms of weight . In 2010, Cheng co…