We construct a canonical basis for the space of weakly holomorphic Drinfeld modular forms. And we find that the basis elements satisfy a generating function and the duality among coefficients of the basis elements. Moreover we obtain the congruence properties of t-expansion coefficients of these functions under some conditions.

中文翻译：

---

GL2(A) 的弱全纯 Drinfeld 模形式空间的一个基

我们为弱全纯 Drinfeld 模形式的空间构建了一个规范基础。并且我们发现基元满足生成函数和基元系数间的对偶性。此外，我们获得了这些函数在某些条件下的t展开系数的同余性质。