Properties

Label 402.2.h
Level $402$
Weight $2$
Character orbit 402.h
Rep. character $\chi_{402}(239,\cdot)$
Character field $\Q(\zeta_{6})$
Dimension $44$
Newform subspaces $2$
Sturm bound $136$
Trace bound $2$

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Defining parameters

Level: \( N \) \(=\) \( 402 = 2 \cdot 3 \cdot 67 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 402.h (of order \(6\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 201 \)
Character field: \(\Q(\zeta_{6})\)
Newform subspaces: \( 2 \)
Sturm bound: \(136\)
Trace bound: \(2\)
Distinguishing \(T_p\): \(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(402, [\chi])\).

Total New Old
Modular forms 144 44 100
Cusp forms 128 44 84
Eisenstein series 16 0 16

Trace form

\( 44 q - 22 q^{4} - q^{6} - 12 q^{7} + 2 q^{9} + O(q^{10}) \) \( 44 q - 22 q^{4} - q^{6} - 12 q^{7} + 2 q^{9} - 3 q^{12} + 12 q^{13} + 8 q^{15} - 22 q^{16} - 3 q^{18} - 6 q^{19} - 6 q^{21} - 24 q^{22} + 2 q^{24} + 20 q^{25} + 12 q^{28} - 6 q^{30} + 48 q^{31} - 6 q^{33} + 6 q^{34} - q^{36} - 20 q^{37} - 12 q^{39} - 60 q^{46} + 3 q^{48} + 54 q^{49} - 3 q^{51} - 28 q^{54} - 20 q^{55} - 3 q^{57} - 4 q^{60} - 12 q^{61} - 42 q^{63} + 44 q^{64} - 40 q^{67} + 30 q^{69} - 18 q^{73} + 12 q^{76} + 48 q^{78} - 24 q^{79} + 82 q^{81} - 56 q^{82} - 6 q^{84} + 60 q^{85} + 18 q^{87} + 12 q^{88} + 26 q^{90} - 8 q^{91} - 18 q^{93} - q^{96} + 138 q^{97} - 78 q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(402, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
402.2.h.a 402.h 201.f $22$ $3.210$ None \(-11\) \(1\) \(0\) \(-6\) $\mathrm{SU}(2)[C_{6}]$
402.2.h.b 402.h 201.f $22$ $3.210$ None \(11\) \(-1\) \(0\) \(-6\) $\mathrm{SU}(2)[C_{6}]$

Decomposition of \(S_{2}^{\mathrm{old}}(402, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(402, [\chi]) \cong \)