The discriminant function $\Delta(z) := q\prod (1 - q^n)^{24}$ is a cusp form for $SL(\mathbb{Z})$ of weight $12$. Are there any generalizations of these cusp forms for other level groups $\Gamma_0(N)$?
2026-04-03 04:46:18.1775191578
Generalization of the discriminant function to other level groups?
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