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The automorphism group of the modular curve 𝑋₀*(𝑁) with square-free level
Transactions of the American Mathematical Society ( IF 1.2 ) Pub Date : 2021-04-27 , DOI: 10.1090/tran/8391
Francesc Bars , Josep González

Abstract:We determine the automorphism group of the modular curve $X_0^*(N)$, obtained as the quotient of the modular curve $X_0(N)$ by the group of its Atkin-Lehner involutions, for all square-free values of $N$.


中文翻译:

无平方水平的模曲线𝑋₀*(𝑁)的自同构群

摘要:我们确定模曲线 $X_0^*(N)$ 的自同构群,由模曲线 $X_0(N)$ 通过其 Atkin-Lehner 对合群的商获得,对于所有无平方值$N$。
更新日期:2021-04-27
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