Properties

Label 1870.4.b
Level $1870$
Weight $4$
Character orbit 1870.b
Rep. character $\chi_{1870}(749,\cdot)$
Character field $\Q$
Dimension $240$
Sturm bound $1296$

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Defining parameters

Level: \( N \) \(=\) \( 1870 = 2 \cdot 5 \cdot 11 \cdot 17 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1870.b (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 5 \)
Character field: \(\Q\)
Sturm bound: \(1296\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(1870, [\chi])\).

Total New Old
Modular forms 980 240 740
Cusp forms 964 240 724
Eisenstein series 16 0 16

Trace form

\( 240 q - 960 q^{4} - 16 q^{5} - 16 q^{6} - 2088 q^{9} + 44 q^{11} - 400 q^{14} + 44 q^{15} + 3840 q^{16} + 576 q^{19} + 64 q^{20} - 176 q^{21} + 64 q^{24} - 32 q^{25} - 184 q^{29} - 544 q^{30} + 720 q^{31}+ \cdots - 2068 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{4}^{\mathrm{new}}(1870, [\chi])\) into newform subspaces

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

Decomposition of \(S_{4}^{\mathrm{old}}(1870, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(1870, [\chi]) \simeq \) \(S_{4}^{\mathrm{new}}(10, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(55, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(85, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(110, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(170, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(935, [\chi])\)\(^{\oplus 2}\)