In this article, we explicitly construct a canonical basis for the space of certain weakly holomorphic Drinfeld modular forms for ${\mathrm{\Gamma }}_0(T)$ (resp., for ${\mathrm{\Gamma }}_0^{+}(T)$) and compute the generating function satisfied by the basis elements. We also give an explicit expression for the action of the Θ-operator, which depends on the divisor of meromorphic Drinfeld modular forms.

中文翻译：

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T 级弱全纯 Drinfeld 模形式的空间基础

在本文中，我们明确地为某些弱全纯 Drinfeld 模形式的空间构建了规范基础：${\mathrm{\gamma }}_0（\mathrm{时间}）$（分别为${\mathrm{\gamma }}_0^{+}（\mathrm{时间}）$）并计算基本元素满足的生成函数。我们还给出了 θ 算子作用的显式表达式，该表达式取决于亚纯 Drinfeld 模形式的除数。