Properties

Label 1428.2.bt
Level $1428$
Weight $2$
Character orbit 1428.bt
Rep. character $\chi_{1428}(461,\cdot)$
Character field $\Q(\zeta_{8})$
Dimension $192$
Sturm bound $576$

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Defining parameters

Level: \( N \) \(=\) \( 1428 = 2^{2} \cdot 3 \cdot 7 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1428.bt (of order \(8\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 357 \)
Character field: \(\Q(\zeta_{8})\)
Sturm bound: \(576\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1428, [\chi])\).

Total New Old
Modular forms 1200 192 1008
Cusp forms 1104 192 912
Eisenstein series 96 0 96

Trace form

\( 192 q + 32 q^{15} + 16 q^{37} + 8 q^{39} - 16 q^{43} - 16 q^{49} - 24 q^{51} + 60 q^{63} - 32 q^{79} - 128 q^{85} + 32 q^{91} + 24 q^{93} - 136 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(1428, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(1428, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1428, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(357, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(714, [\chi])\)\(^{\oplus 2}\)