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Properties

Label 405.4.r
Level $405$
Weight $4$
Character orbit 405.r
Rep. character $\chi_{405}(8,\cdot)$
Character field $\Q(\zeta_{36})$
Dimension $624$
Sturm bound $216$

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Defining parameters

Level: \( N \) \(=\) \( 405 = 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 405.r (of order \(36\) and degree \(12\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 135 \)
Character field: \(\Q(\zeta_{36})\)
Sturm bound: \(216\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(405, [\chi])\).

Total New Old
Modular forms 2016 672 1344
Cusp forms 1872 624 1248
Eisenstein series 144 48 96

Trace form

\( 624 q + 12 q^{2} + 12 q^{5} - 12 q^{7} + 18 q^{8} + O(q^{10}) \) \( 624 q + 12 q^{2} + 12 q^{5} - 12 q^{7} + 18 q^{8} - 6 q^{10} - 12 q^{13} - 24 q^{16} + 18 q^{17} - 756 q^{20} - 12 q^{22} + 324 q^{23} + 420 q^{25} - 24 q^{28} - 24 q^{31} - 1752 q^{32} - 2466 q^{35} - 6 q^{37} + 132 q^{38} - 396 q^{40} - 1680 q^{41} - 12 q^{43} - 12 q^{46} + 3480 q^{47} + 684 q^{50} + 84 q^{52} - 24 q^{55} + 4752 q^{56} - 12 q^{58} - 132 q^{61} + 18 q^{62} - 2076 q^{65} + 3660 q^{67} - 2676 q^{68} - 12 q^{70} + 36 q^{71} - 6 q^{73} - 792 q^{76} + 3324 q^{77} - 24 q^{82} + 2832 q^{83} - 12 q^{85} + 12516 q^{86} - 3036 q^{88} - 12 q^{91} + 1938 q^{92} + 4302 q^{95} + 6900 q^{97} + 5832 q^{98} + O(q^{100}) \)

Display 100 coefficients 10 coefficients

Decomposition of \(S_{4}^{\mathrm{new}}(405, [\chi])\) into newform subspaces

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

Decomposition of \(S_{4}^{\mathrm{old}}(405, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(405, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(135, [\chi])\)\(^{\oplus 2}\)