Properties

Label 69.8.c
Level $69$
Weight $8$
Character orbit 69.c
Rep. character $\chi_{69}(68,\cdot)$
Character field $\Q$
Dimension $54$
Newform subspaces $2$
Sturm bound $64$
Trace bound $1$

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Defining parameters

Level: \( N \) \(=\) \( 69 = 3 \cdot 23 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 69.c (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 69 \)
Character field: \(\Q\)
Newform subspaces: \( 2 \)
Sturm bound: \(64\)
Trace bound: \(1\)
Distinguishing \(T_p\): \(2\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{8}(69, [\chi])\).

Total New Old
Modular forms 58 58 0
Cusp forms 54 54 0
Eisenstein series 4 4 0

Trace form

\( 54 q + 24 q^{3} - 3384 q^{4} + 1269 q^{6} + 648 q^{9} + O(q^{10}) \) \( 54 q + 24 q^{3} - 3384 q^{4} + 1269 q^{6} + 648 q^{9} - 4767 q^{12} - 4992 q^{13} + 174600 q^{16} + 28371 q^{18} - 217452 q^{24} + 788370 q^{25} - 330684 q^{27} - 738480 q^{31} + 394491 q^{36} + 1635792 q^{39} - 489768 q^{46} - 133029 q^{48} - 628326 q^{49} + 33594 q^{52} + 1260252 q^{54} - 305760 q^{55} + 4125066 q^{58} - 7257906 q^{64} + 4496304 q^{69} + 23272152 q^{70} - 17627424 q^{72} - 2542752 q^{73} + 487176 q^{75} - 39008865 q^{78} + 25279128 q^{81} - 9150018 q^{82} - 18046992 q^{85} + 12749400 q^{87} - 28078230 q^{93} + 18404142 q^{94} + 7934829 q^{96} + O(q^{100}) \)

Decomposition of \(S_{8}^{\mathrm{new}}(69, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
69.8.c.a 69.c 69.c $6$ $21.555$ 6.0.8869743.1 \(\Q(\sqrt{-23}) \) \(0\) \(0\) \(0\) \(0\) $\mathrm{U}(1)[D_{2}]$ \(q+(-2\beta _{1}-6\beta _{2}+3\beta _{3}+2\beta _{4}+2\beta _{5})q^{2}+\cdots\)
69.8.c.b 69.c 69.c $48$ $21.555$ None \(0\) \(24\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$