Properties

Label 1221.2.cb
Level $1221$
Weight $2$
Character orbit 1221.cb
Rep. character $\chi_{1221}(56,\cdot)$
Character field $\Q(\zeta_{36})$
Dimension $1512$
Sturm bound $304$

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Defining parameters

Level: \( N \) \(=\) \( 1221 = 3 \cdot 11 \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1221.cb (of order \(36\) and degree \(12\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 111 \)
Character field: \(\Q(\zeta_{36})\)
Sturm bound: \(304\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1221, [\chi])\).

Total New Old
Modular forms 1872 1512 360
Cusp forms 1776 1512 264
Eisenstein series 96 0 96

Trace form

\( 1512 q + 6 q^{9} - 24 q^{12} + 6 q^{15} + 24 q^{24} + 48 q^{28} + 84 q^{30} - 72 q^{31} - 48 q^{34} + 12 q^{37} - 288 q^{40} - 72 q^{42} - 48 q^{45} - 120 q^{46} + 60 q^{49} - 120 q^{51} - 120 q^{52} + 72 q^{54}+ \cdots + 60 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(1221, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(1221, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1221, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(111, [\chi])\)\(^{\oplus 2}\)