Properties

Label 1386.2.cb
Level $1386$
Weight $2$
Character orbit 1386.cb
Rep. character $\chi_{1386}(47,\cdot)$
Character field $\Q(\zeta_{30})$
Dimension $768$
Sturm bound $576$

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Defining parameters

Level: \( N \) \(=\) \( 1386 = 2 \cdot 3^{2} \cdot 7 \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1386.cb (of order \(30\) and degree \(8\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 693 \)
Character field: \(\Q(\zeta_{30})\)
Sturm bound: \(576\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1386, [\chi])\).

Total New Old
Modular forms 2368 768 1600
Cusp forms 2240 768 1472
Eisenstein series 128 0 128

Trace form

\( 768q - 96q^{4} - 12q^{9} + O(q^{10}) \) \( 768q - 96q^{4} - 12q^{9} - 12q^{15} + 96q^{16} - 8q^{18} + 20q^{21} - 192q^{25} - 36q^{26} - 54q^{27} + 132q^{33} - 90q^{35} - 8q^{36} + 24q^{39} - 4q^{42} - 12q^{44} + 48q^{50} + 16q^{51} + 36q^{53} + 44q^{57} - 36q^{58} - 60q^{59} + 16q^{60} + 42q^{63} + 192q^{64} - 24q^{65} + 72q^{66} + 12q^{70} - 12q^{72} - 60q^{75} - 102q^{77} - 80q^{78} + 36q^{79} + 56q^{81} + 36q^{84} + 24q^{85} - 204q^{87} - 60q^{89} + 54q^{92} + 4q^{93} - 144q^{95} - 48q^{98} + 142q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(1386, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(1386, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1386, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(693, [\chi])\)\(^{\oplus 2}\)