Properties

Label 8020.2.bv
Level $8020$
Weight $2$
Character orbit 8020.bv
Rep. character $\chi_{8020}(1949,\cdot)$
Character field $\Q(\zeta_{20})$
Dimension $1600$
Sturm bound $2412$

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Defining parameters

Level: \( N \) \(=\) \( 8020 = 2^{2} \cdot 5 \cdot 401 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 8020.bv (of order \(20\) and degree \(8\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 2005 \)
Character field: \(\Q(\zeta_{20})\)
Sturm bound: \(2412\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(8020, [\chi])\).

Total New Old
Modular forms 9696 1600 8096
Cusp forms 9600 1600 8000
Eisenstein series 96 0 96

Decomposition of \(S_{2}^{\mathrm{new}}(8020, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(8020, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(8020, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(2005, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(4010, [\chi])\)\(^{\oplus 2}\)