Properties

Label 912.4.ci
Level $912$
Weight $4$
Character orbit 912.ci
Rep. character $\chi_{912}(79,\cdot)$
Character field $\Q(\zeta_{18})$
Dimension $360$
Sturm bound $640$

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Defining parameters

Level: \( N \) \(=\) \( 912 = 2^{4} \cdot 3 \cdot 19 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 912.ci (of order \(18\) and degree \(6\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 76 \)
Character field: \(\Q(\zeta_{18})\)
Sturm bound: \(640\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(912, [\chi])\).

Total New Old
Modular forms 2952 360 2592
Cusp forms 2808 360 2448
Eisenstein series 144 0 144

Trace form

\( 360 q + O(q^{10}) \) \( 360 q - 108 q^{13} + 180 q^{21} - 2664 q^{41} + 8820 q^{49} + 3528 q^{53} + 5040 q^{61} + 7560 q^{65} - 324 q^{73} - 10512 q^{77} - 5832 q^{85} + 21528 q^{89} + 5544 q^{93} + 4392 q^{97} + O(q^{100}) \)

Decomposition of \(S_{4}^{\mathrm{new}}(912, [\chi])\) into newform subspaces

The newforms in this space have not yet been added to the LMFDB.

Decomposition of \(S_{4}^{\mathrm{old}}(912, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(912, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(76, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(152, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(228, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(304, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(456, [\chi])\)\(^{\oplus 2}\)