Properties

Label 1216.2.cb
Level $1216$
Weight $2$
Character orbit 1216.cb
Rep. character $\chi_{1216}(71,\cdot)$
Character field $\Q(\zeta_{72})$
Dimension $0$
Newform subspaces $0$
Sturm bound $320$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 1216 = 2^{6} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1216.cb (of order \(72\) and degree \(24\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 608 \)
Character field: \(\Q(\zeta_{72})\)
Newform subspaces: \( 0 \)
Sturm bound: \(320\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1216, [\chi])\).

Total New Old
Modular forms 3936 0 3936
Cusp forms 3744 0 3744
Eisenstein series 192 0 192

Decomposition of \(S_{2}^{\mathrm{old}}(1216, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1216, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(608, [\chi])\)\(^{\oplus 2}\)