Properties

Label 2205.4.b
Level $2205$
Weight $4$
Character orbit 2205.b
Rep. character $\chi_{2205}(881,\cdot)$
Character field $\Q$
Dimension $160$
Sturm bound $1344$

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Defining parameters

Level: \( N \) \(=\) \( 2205 = 3^{2} \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 2205.b (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 21 \)
Character field: \(\Q\)
Sturm bound: \(1344\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(2205, [\chi])\).

Total New Old
Modular forms 1040 160 880
Cusp forms 976 160 816
Eisenstein series 64 0 64

Trace form

\( 160 q - 640 q^{4} + O(q^{10}) \) \( 160 q - 640 q^{4} + 2800 q^{16} - 1056 q^{22} + 4000 q^{25} - 3920 q^{37} - 2480 q^{43} + 2160 q^{46} + 624 q^{58} - 20224 q^{64} + 2576 q^{67} - 4624 q^{79} - 816 q^{88} + O(q^{100}) \)

Decomposition of \(S_{4}^{\mathrm{new}}(2205, [\chi])\) into newform subspaces

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

Decomposition of \(S_{4}^{\mathrm{old}}(2205, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(2205, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(21, [\chi])\)\(^{\oplus 8}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(63, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(147, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(441, [\chi])\)\(^{\oplus 2}\)