Properties

Label 1840.4.m
Level $1840$
Weight $4$
Character orbit 1840.m
Rep. character $\chi_{1840}(1839,\cdot)$
Character field $\Q$
Dimension $216$
Sturm bound $1152$

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Defining parameters

Level: \( N \) \(=\) \( 1840 = 2^{4} \cdot 5 \cdot 23 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1840.m (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 460 \)
Character field: \(\Q\)
Sturm bound: \(1152\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(1840, [\chi])\).

Total New Old
Modular forms 876 216 660
Cusp forms 852 216 636
Eisenstein series 24 0 24

Trace form

\( 216 q + 1944 q^{9} + O(q^{10}) \) \( 216 q + 1944 q^{9} + 168 q^{29} - 888 q^{41} - 10272 q^{49} + 2268 q^{69} + 21168 q^{81} + 5064 q^{85} + O(q^{100}) \)

Decomposition of \(S_{4}^{\mathrm{new}}(1840, [\chi])\) into newform subspaces

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

Decomposition of \(S_{4}^{\mathrm{old}}(1840, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(1840, [\chi]) \cong \)