Properties

Label 855.1.e
Level $855$
Weight $1$
Character orbit 855.e
Rep. character $\chi_{855}(721,\cdot)$
Character field $\Q$
Dimension $0$
Newform subspaces $0$
Sturm bound $120$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 855 = 3^{2} \cdot 5 \cdot 19 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 855.e (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 19 \)
Character field: \(\Q\)
Newform subspaces: \( 0 \)
Sturm bound: \(120\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(855, [\chi])\).

Total New Old
Modular forms 10 0 10
Cusp forms 2 0 2
Eisenstein series 8 0 8

The following table gives the dimensions of subspaces with specified projective image type.

\(D_n\) \(A_4\) \(S_4\) \(A_5\)
Dimension 0 0 0 0

Decomposition of \(S_{1}^{\mathrm{old}}(855, [\chi])\) into lower level spaces

\( S_{1}^{\mathrm{old}}(855, [\chi]) \cong \) \(S_{1}^{\mathrm{new}}(171, [\chi])\)\(^{\oplus 2}\)