Properties

Label 800.4.bg
Level $800$
Weight $4$
Character orbit 800.bg
Rep. character $\chi_{800}(129,\cdot)$
Character field $\Q(\zeta_{10})$
Dimension $360$
Sturm bound $480$

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Defining parameters

Level: \( N \) \(=\) \( 800 = 2^{5} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 800.bg (of order \(10\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 25 \)
Character field: \(\Q(\zeta_{10})\)
Sturm bound: \(480\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(800, [\chi])\).

Total New Old
Modular forms 1472 360 1112
Cusp forms 1408 360 1048
Eisenstein series 64 0 64

Trace form

\( 360 q + 2 q^{5} + 810 q^{9} + O(q^{10}) \) \( 360 q + 2 q^{5} + 810 q^{9} + 102 q^{25} + 284 q^{29} - 1650 q^{37} + 708 q^{41} - 1074 q^{45} - 16824 q^{49} + 1430 q^{53} - 780 q^{61} + 214 q^{65} - 1488 q^{69} - 6378 q^{81} - 2446 q^{85} + 198 q^{89} - 11160 q^{97} + O(q^{100}) \)

Decomposition of \(S_{4}^{\mathrm{new}}(800, [\chi])\) into newform subspaces

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

Decomposition of \(S_{4}^{\mathrm{old}}(800, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(800, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(25, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(50, [\chi])\)\(^{\oplus 5}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(100, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(200, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(400, [\chi])\)\(^{\oplus 2}\)