Properties

Label 168.2.q
Level 168
Weight 2
Character orbit q
Rep. character \(\chi_{168}(25,\cdot)\)
Character field \(\Q(\zeta_{3})\)
Dimension 8
Newform subspaces 3
Sturm bound 64
Trace bound 3

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Defining parameters

Level: \( N \) = \( 168 = 2^{3} \cdot 3 \cdot 7 \)
Weight: \( k \) = \( 2 \)
Character orbit: \([\chi]\) = 168.q (of order \(3\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) = \( 7 \)
Character field: \(\Q(\zeta_{3})\)
Newform subspaces: \( 3 \)
Sturm bound: \(64\)
Trace bound: \(3\)
Distinguishing \(T_p\): \(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(168, [\chi])\).

Total New Old
Modular forms 80 8 72
Cusp forms 48 8 40
Eisenstein series 32 0 32

Trace form

\( 8q + 2q^{3} - 4q^{9} + O(q^{10}) \) \( 8q + 2q^{3} - 4q^{9} + 4q^{11} + 12q^{13} - 4q^{15} + 4q^{17} + 14q^{19} - 4q^{21} - 12q^{23} - 14q^{25} - 4q^{27} - 8q^{29} - 10q^{33} - 36q^{35} - 2q^{37} - 2q^{39} + 24q^{41} - 4q^{43} - 12q^{49} - 4q^{51} - 28q^{53} + 28q^{55} + 12q^{57} - 20q^{61} + 6q^{63} - 16q^{65} + 2q^{67} + 8q^{69} + 16q^{71} + 10q^{73} + 22q^{75} + 36q^{77} - 20q^{79} - 4q^{81} + 40q^{83} + 24q^{85} + 2q^{87} + 32q^{89} - 26q^{91} + 10q^{93} + 32q^{95} - 12q^{97} - 8q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(168, [\chi])\) into newform subspaces

Label Dim. \(A\) Field CM Traces $q$-expansion
\(a_2\) \(a_3\) \(a_5\) \(a_7\)
168.2.q.a \(2\) \(1.341\) \(\Q(\sqrt{-3}) \) None \(0\) \(-1\) \(1\) \(1\) \(q-\zeta_{6}q^{3}+(1-\zeta_{6})q^{5}+(2-3\zeta_{6})q^{7}+\cdots\)
168.2.q.b \(2\) \(1.341\) \(\Q(\sqrt{-3}) \) None \(0\) \(1\) \(-2\) \(5\) \(q+\zeta_{6}q^{3}+(-2+2\zeta_{6})q^{5}+(3-\zeta_{6})q^{7}+\cdots\)
168.2.q.c \(4\) \(1.341\) \(\Q(\sqrt{-3}, \sqrt{-19})\) None \(0\) \(2\) \(1\) \(-6\) \(q+(1-\beta _{2})q^{3}+(-1+2\beta _{1}+\beta _{2}-\beta _{3})q^{5}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(168, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(168, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(21, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(28, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(42, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(56, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(84, [\chi])\)\(^{\oplus 2}\)

Hecke Characteristic Polynomials

$p$ $F_p(T)$
$2$ (\( \))(\( \))(\( \))
$3$ (\( 1 + T + T^{2} \))(\( 1 - T + T^{2} \))(\( ( 1 - T + T^{2} )^{2} \))
$5$ (\( 1 - T - 4 T^{2} - 5 T^{3} + 25 T^{4} \))(\( 1 + 2 T - T^{2} + 10 T^{3} + 25 T^{4} \))(\( ( 1 - T + 5 T^{2} )^{2}( 1 + T - 4 T^{2} + 5 T^{3} + 25 T^{4} ) \))
$7$ (\( 1 - T + 7 T^{2} \))(\( 1 - 5 T + 7 T^{2} \))(\( ( 1 + 3 T + 7 T^{2} )^{2} \))
$11$ (\( 1 + 3 T - 2 T^{2} + 33 T^{3} + 121 T^{4} \))(\( 1 - 6 T + 25 T^{2} - 66 T^{3} + 121 T^{4} \))(\( 1 - T - 7 T^{2} + 14 T^{3} - 68 T^{4} + 154 T^{5} - 847 T^{6} - 1331 T^{7} + 14641 T^{8} \))
$13$ (\( ( 1 - 4 T + 13 T^{2} )^{2} \))(\( ( 1 + 3 T + 13 T^{2} )^{2} \))(\( ( 1 - 5 T + 18 T^{2} - 65 T^{3} + 169 T^{4} )^{2} \))
$17$ (\( 1 - 17 T^{2} + 289 T^{4} \))(\( 1 + 4 T - T^{2} + 68 T^{3} + 289 T^{4} \))(\( ( 1 - 4 T - T^{2} - 68 T^{3} + 289 T^{4} )^{2} \))
$19$ (\( 1 - 4 T - 3 T^{2} - 76 T^{3} + 361 T^{4} \))(\( 1 - 5 T + 6 T^{2} - 95 T^{3} + 361 T^{4} \))(\( 1 - 5 T - 5 T^{2} + 40 T^{3} + 64 T^{4} + 760 T^{5} - 1805 T^{6} - 34295 T^{7} + 130321 T^{8} \))
$23$ (\( 1 + 8 T + 41 T^{2} + 184 T^{3} + 529 T^{4} \))(\( 1 - 4 T - 7 T^{2} - 92 T^{3} + 529 T^{4} \))(\( ( 1 + 4 T - 7 T^{2} + 92 T^{3} + 529 T^{4} )^{2} \))
$29$ (\( ( 1 + 3 T + 29 T^{2} )^{2} \))(\( ( 1 + 4 T + 29 T^{2} )^{2} \))(\( ( 1 - 3 T + 46 T^{2} - 87 T^{3} + 841 T^{4} )^{2} \))
$31$ (\( 1 - 5 T - 6 T^{2} - 155 T^{3} + 961 T^{4} \))(\( ( 1 - 4 T + 31 T^{2} )( 1 + 11 T + 31 T^{2} ) \))(\( ( 1 - T - 30 T^{2} - 31 T^{3} + 961 T^{4} )^{2} \))
$37$ (\( 1 + 8 T + 27 T^{2} + 296 T^{3} + 1369 T^{4} \))(\( 1 - 9 T + 44 T^{2} - 333 T^{3} + 1369 T^{4} \))(\( 1 + 3 T - 53 T^{2} - 36 T^{3} + 2142 T^{4} - 1332 T^{5} - 72557 T^{6} + 151959 T^{7} + 1874161 T^{8} \))
$41$ (\( ( 1 - 8 T + 41 T^{2} )^{2} \))(\( ( 1 + 2 T + 41 T^{2} )^{2} \))(\( ( 1 - 6 T + 34 T^{2} - 246 T^{3} + 1681 T^{4} )^{2} \))
$43$ (\( ( 1 - 6 T + 43 T^{2} )^{2} \))(\( ( 1 + T + 43 T^{2} )^{2} \))(\( ( 1 + 7 T + 84 T^{2} + 301 T^{3} + 1849 T^{4} )^{2} \))
$47$ (\( 1 + 10 T + 53 T^{2} + 470 T^{3} + 2209 T^{4} \))(\( 1 + 2 T - 43 T^{2} + 94 T^{3} + 2209 T^{4} \))(\( ( 1 - 6 T - 11 T^{2} - 282 T^{3} + 2209 T^{4} )^{2} \))
$53$ (\( 1 + 9 T + 28 T^{2} + 477 T^{3} + 2809 T^{4} \))(\( 1 + 8 T + 11 T^{2} + 424 T^{3} + 2809 T^{4} \))(\( 1 + 11 T - T^{2} + 176 T^{3} + 5662 T^{4} + 9328 T^{5} - 2809 T^{6} + 1637647 T^{7} + 7890481 T^{8} \))
$59$ (\( 1 - 5 T - 34 T^{2} - 295 T^{3} + 3481 T^{4} \))(\( 1 - 59 T^{2} + 3481 T^{4} \))(\( 1 + 5 T - 85 T^{2} - 40 T^{3} + 7144 T^{4} - 2360 T^{5} - 295885 T^{6} + 1026895 T^{7} + 12117361 T^{8} \))
$61$ (\( 1 - 10 T + 39 T^{2} - 610 T^{3} + 3721 T^{4} \))(\( 1 + 10 T + 39 T^{2} + 610 T^{3} + 3721 T^{4} \))(\( ( 1 + 10 T + 39 T^{2} + 610 T^{3} + 3721 T^{4} )^{2} \))
$67$ (\( 1 + 6 T - 31 T^{2} + 402 T^{3} + 4489 T^{4} \))(\( 1 - 15 T + 158 T^{2} - 1005 T^{3} + 4489 T^{4} \))(\( 1 + 7 T - 83 T^{2} - 14 T^{3} + 9652 T^{4} - 938 T^{5} - 372587 T^{6} + 2105341 T^{7} + 20151121 T^{8} \))
$71$ (\( ( 1 - 10 T + 71 T^{2} )^{2} \))(\( ( 1 + 6 T + 71 T^{2} )^{2} \))(\( ( 1 - 2 T + 71 T^{2} )^{4} \))
$73$ (\( 1 + 2 T - 69 T^{2} + 146 T^{3} + 5329 T^{4} \))(\( 1 - 11 T + 48 T^{2} - 803 T^{3} + 5329 T^{4} \))(\( 1 - T - 131 T^{2} + 14 T^{3} + 12022 T^{4} + 1022 T^{5} - 698099 T^{6} - 389017 T^{7} + 28398241 T^{8} \))
$79$ (\( 1 + 11 T + 42 T^{2} + 869 T^{3} + 6241 T^{4} \))(\( 1 + T - 78 T^{2} + 79 T^{3} + 6241 T^{4} \))(\( 1 + 8 T - 53 T^{2} - 328 T^{3} + 2392 T^{4} - 25912 T^{5} - 330773 T^{6} + 3944312 T^{7} + 38950081 T^{8} \))
$83$ (\( ( 1 - 7 T + 83 T^{2} )^{2} \))(\( ( 1 - 6 T + 83 T^{2} )^{2} \))(\( ( 1 - 7 T + 164 T^{2} - 581 T^{3} + 6889 T^{4} )^{2} \))
$89$ (\( 1 - 18 T + 235 T^{2} - 1602 T^{3} + 7921 T^{4} \))(\( 1 - 8 T - 25 T^{2} - 712 T^{3} + 7921 T^{4} \))(\( 1 - 6 T - 94 T^{2} + 288 T^{3} + 5775 T^{4} + 25632 T^{5} - 744574 T^{6} - 4229814 T^{7} + 62742241 T^{8} \))
$97$ (\( ( 1 + 17 T + 97 T^{2} )^{2} \))(\( ( 1 + 14 T + 97 T^{2} )^{2} \))(\( ( 1 - 25 T + 336 T^{2} - 2425 T^{3} + 9409 T^{4} )^{2} \))
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