The rationality of vector valued modular forms associated with the Weil representation
The rationality of vector valued modular forms associated with the Weil representation
复制标题
与 Weil 表示相关的向量值模形式的合理性
DOI:
10.1007/s00208-003-0413-1
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发表时间:
2003
影响因子:
1.4
通讯作者:
W. J. McGraw
中科院分区:
文献类型:
--
作者:
W. J. McGraw
Abstract. In a recent paper [Duke Math. J., 97, 219–233], Borcherds asks whether or not the spaces of vector valued modular forms associated to the Weil representation have bases of modular forms whose Fourier expansions have only integer coefficients. We give an affirmative answer to Borcherds' question. This strengthens and simplifies Borcherds' main theorem which is a generalization of a theorem of Gross, Kohnen, and Zagier [Math. Ann., 278, 497–562].