Properties

Label 6400.2.ci
Level $6400$
Weight $2$
Character orbit 6400.ci
Rep. character $\chi_{6400}(249,\cdot)$
Character field $\Q(\zeta_{32})$
Dimension $0$
Newform subspaces $0$
Sturm bound $1920$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 6400 = 2^{8} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 6400.ci (of order \(32\) and degree \(16\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 640 \)
Character field: \(\Q(\zeta_{32})\)
Newform subspaces: \( 0 \)
Sturm bound: \(1920\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(6400, [\chi])\).

Total New Old
Modular forms 15552 0 15552
Cusp forms 15168 0 15168
Eisenstein series 384 0 384

Decomposition of \(S_{2}^{\mathrm{old}}(6400, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(6400, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(640, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1280, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(3200, [\chi])\)\(^{\oplus 2}\)