## Defining parameters

Level: | \( N \) | \(=\) | \( 441 = 3^{2} \cdot 7^{2} \) |

Weight: | \( k \) | \(=\) | \( 1 \) |

Character orbit: | \([\chi]\) | \(=\) | 441.d (of order \(2\) and degree \(1\)) |

Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 7 \) |

Character field: | \(\Q\) | ||

Newform subspaces: | \( 0 \) | ||

Sturm bound: | \(56\) | ||

Trace bound: | \(0\) |

## Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(441, [\chi])\).

Total | New | Old | |
---|---|---|---|

Modular forms | 18 | 2 | 16 |

Cusp forms | 2 | 0 | 2 |

Eisenstein series | 16 | 2 | 14 |

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 \(S_{1}^{\mathrm{old}}(441, [\chi])\) into lower level spaces

\( S_{1}^{\mathrm{old}}(441, [\chi]) \cong \) \(S_{1}^{\mathrm{new}}(63, [\chi])\)\(^{\oplus 2}\)