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The canonical field of definition of $X(N)$ is $\Q(\zeta_N)$, which means that the database of modular curves $X_H/\Q$ only includes $X(N)$ for $N\le 2$, in which case $X(N)=X_{\mathrm arith}(N)$.

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  • Review status: beta
  • Last edited by Asimina Hamakiotes on 2025-07-18 17:14:50
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