Properties

Label 320.10.u
Level $320$
Weight $10$
Character orbit 320.u
Rep. character $\chi_{320}(87,\cdot)$
Character field $\Q(\zeta_{8})$
Dimension $0$
Newform subspaces $0$
Sturm bound $480$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 320 = 2^{6} \cdot 5 \)
Weight: \( k \) \(=\) \( 10 \)
Character orbit: \([\chi]\) \(=\) 320.u (of order \(8\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 160 \)
Character field: \(\Q(\zeta_{8})\)
Newform subspaces: \( 0 \)
Sturm bound: \(480\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{10}(320, [\chi])\).

Total New Old
Modular forms 1744 0 1744
Cusp forms 1712 0 1712
Eisenstein series 32 0 32

Decomposition of \(S_{10}^{\mathrm{old}}(320, [\chi])\) into lower level spaces

\( S_{10}^{\mathrm{old}}(320, [\chi]) \cong \) \(S_{10}^{\mathrm{new}}(160, [\chi])\)\(^{\oplus 2}\)