Difference of a Hauptmodul for $\Gamma_{0}(N)$
Difference of a Hauptmodul for $\Gamma_{0}(N)$
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发表时间:
2017-04
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通讯作者:
Dongxi Ye
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作者:
Dongxi Ye
In this short note, by modifying the results and proofs given in the author's recent work, we simply show that the difference of a Hauptmodul for any genus zero group $\Gamma_{0}(N)$ is a Borcherds lift. This work extends Scheithauer's results in a different direction. As a consequence, we derive Monster denominator formula like product expansion for these Hilbert modular forms.