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A subgroup of the integral symplectic group $\Sp(2g,\Z)$ is called a congruence subgroup of level $N$ if it contains the principal congruence subgroup $\Gamma(N)$.

Examples of such subgroups are:

Knowl status:
  • Review status: beta
  • Last edited by Fabien Cléry on 2021-05-06 12:48:48
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