Properties

Label 882.3.c.b
Level $882$
Weight $3$
Character orbit 882.c
Analytic conductor $24.033$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

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Newspace parameters

Level: \( N \) \(=\) \( 882 = 2 \cdot 3^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 882.c (of order \(2\), degree \(1\), minimal)

Newform invariants

Self dual: no
Analytic conductor: \(24.0327593166\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\sqrt{2}, \sqrt{-3})\)
Defining polynomial: \(x^{4} + 2 x^{2} + 4\)
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 42)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q -\beta_{1} q^{2} + 2 q^{4} + ( 2 \beta_{2} - 2 \beta_{3} ) q^{5} -2 \beta_{1} q^{8} +O(q^{10})\) \( q -\beta_{1} q^{2} + 2 q^{4} + ( 2 \beta_{2} - 2 \beta_{3} ) q^{5} -2 \beta_{1} q^{8} + ( -4 \beta_{2} + 2 \beta_{3} ) q^{10} -6 q^{11} + ( \beta_{2} + 8 \beta_{3} ) q^{13} + 4 q^{16} + ( 8 \beta_{2} - 2 \beta_{3} ) q^{17} + ( 7 \beta_{2} - 2 \beta_{3} ) q^{19} + ( 4 \beta_{2} - 4 \beta_{3} ) q^{20} + 6 \beta_{1} q^{22} + ( 12 - 18 \beta_{1} ) q^{23} + ( -11 - 24 \beta_{1} ) q^{25} + ( 16 \beta_{2} + \beta_{3} ) q^{26} -24 \beta_{1} q^{29} + ( 17 \beta_{2} + 6 \beta_{3} ) q^{31} -4 \beta_{1} q^{32} + ( -4 \beta_{2} + 8 \beta_{3} ) q^{34} + ( -11 + 12 \beta_{1} ) q^{37} + ( -4 \beta_{2} + 7 \beta_{3} ) q^{38} + ( -8 \beta_{2} + 4 \beta_{3} ) q^{40} + ( -26 \beta_{2} - 4 \beta_{3} ) q^{41} + ( 7 + 6 \beta_{1} ) q^{43} -12 q^{44} + ( 36 - 12 \beta_{1} ) q^{46} + ( -22 \beta_{2} - 2 \beta_{3} ) q^{47} + ( 48 + 11 \beta_{1} ) q^{50} + ( 2 \beta_{2} + 16 \beta_{3} ) q^{52} + ( 60 - 18 \beta_{1} ) q^{53} + ( -12 \beta_{2} + 12 \beta_{3} ) q^{55} + 48 q^{58} + ( 4 \beta_{2} + 14 \beta_{3} ) q^{59} + ( 12 \beta_{2} - 8 \beta_{3} ) q^{61} + ( 12 \beta_{2} + 17 \beta_{3} ) q^{62} + 8 q^{64} + ( 90 + 42 \beta_{1} ) q^{65} + ( -55 - 42 \beta_{1} ) q^{67} + ( 16 \beta_{2} - 4 \beta_{3} ) q^{68} + ( -78 + 42 \beta_{1} ) q^{71} + ( -11 \beta_{2} + 40 \beta_{3} ) q^{73} + ( -24 + 11 \beta_{1} ) q^{74} + ( 14 \beta_{2} - 4 \beta_{3} ) q^{76} + ( 5 - 66 \beta_{1} ) q^{79} + ( 8 \beta_{2} - 8 \beta_{3} ) q^{80} + ( -8 \beta_{2} - 26 \beta_{3} ) q^{82} + ( 10 \beta_{2} + 38 \beta_{3} ) q^{83} + ( -72 - 60 \beta_{1} ) q^{85} + ( -12 - 7 \beta_{1} ) q^{86} + 12 \beta_{1} q^{88} -12 \beta_{2} q^{89} + ( 24 - 36 \beta_{1} ) q^{92} + ( -4 \beta_{2} - 22 \beta_{3} ) q^{94} + ( -66 - 54 \beta_{1} ) q^{95} + ( 12 \beta_{2} - 4 \beta_{3} ) q^{97} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4q + 8q^{4} + O(q^{10}) \) \( 4q + 8q^{4} - 24q^{11} + 16q^{16} + 48q^{23} - 44q^{25} - 44q^{37} + 28q^{43} - 48q^{44} + 144q^{46} + 192q^{50} + 240q^{53} + 192q^{58} + 32q^{64} + 360q^{65} - 220q^{67} - 312q^{71} - 96q^{74} + 20q^{79} - 288q^{85} - 48q^{86} + 96q^{92} - 264q^{95} + O(q^{100}) \)

Basis of coefficient ring in terms of a root \(\nu\) of \(x^{4} + 2 x^{2} + 4\):

\(\beta_{0}\)\(=\)\( 1 \)
\(\beta_{1}\)\(=\)\( \nu^{3} \)\(/2\)
\(\beta_{2}\)\(=\)\( \nu^{2} + 1 \)
\(\beta_{3}\)\(=\)\((\)\( \nu^{3} + 4 \nu \)\()/2\)
\(1\)\(=\)\(\beta_0\)
\(\nu\)\(=\)\((\)\(\beta_{3} - \beta_{1}\)\()/2\)
\(\nu^{2}\)\(=\)\(\beta_{2} - 1\)
\(\nu^{3}\)\(=\)\(2 \beta_{1}\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/882\mathbb{Z}\right)^\times\).

\(n\) \(199\) \(785\)
\(\chi(n)\) \(-1\) \(1\)

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

Label \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
685.1
−0.707107 + 1.22474i
−0.707107 1.22474i
0.707107 + 1.22474i
0.707107 1.22474i
−1.41421 0 2.00000 8.36308i 0 0 −2.82843 0 11.8272i
685.2 −1.41421 0 2.00000 8.36308i 0 0 −2.82843 0 11.8272i
685.3 1.41421 0 2.00000 1.43488i 0 0 2.82843 0 2.02922i
685.4 1.41421 0 2.00000 1.43488i 0 0 2.82843 0 2.02922i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 882.3.c.b 4
3.b odd 2 1 294.3.c.a 4
7.b odd 2 1 inner 882.3.c.b 4
7.c even 3 1 126.3.n.a 4
7.c even 3 1 882.3.n.e 4
7.d odd 6 1 126.3.n.a 4
7.d odd 6 1 882.3.n.e 4
12.b even 2 1 2352.3.f.e 4
21.c even 2 1 294.3.c.a 4
21.g even 6 1 42.3.g.a 4
21.g even 6 1 294.3.g.a 4
21.h odd 6 1 42.3.g.a 4
21.h odd 6 1 294.3.g.a 4
28.f even 6 1 1008.3.cg.h 4
28.g odd 6 1 1008.3.cg.h 4
84.h odd 2 1 2352.3.f.e 4
84.j odd 6 1 336.3.bh.e 4
84.n even 6 1 336.3.bh.e 4
105.o odd 6 1 1050.3.p.a 4
105.p even 6 1 1050.3.p.a 4
105.w odd 12 2 1050.3.q.a 8
105.x even 12 2 1050.3.q.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
42.3.g.a 4 21.g even 6 1
42.3.g.a 4 21.h odd 6 1
126.3.n.a 4 7.c even 3 1
126.3.n.a 4 7.d odd 6 1
294.3.c.a 4 3.b odd 2 1
294.3.c.a 4 21.c even 2 1
294.3.g.a 4 21.g even 6 1
294.3.g.a 4 21.h odd 6 1
336.3.bh.e 4 84.j odd 6 1
336.3.bh.e 4 84.n even 6 1
882.3.c.b 4 1.a even 1 1 trivial
882.3.c.b 4 7.b odd 2 1 inner
882.3.n.e 4 7.c even 3 1
882.3.n.e 4 7.d odd 6 1
1008.3.cg.h 4 28.f even 6 1
1008.3.cg.h 4 28.g odd 6 1
1050.3.p.a 4 105.o odd 6 1
1050.3.p.a 4 105.p even 6 1
1050.3.q.a 8 105.w odd 12 2
1050.3.q.a 8 105.x even 12 2
2352.3.f.e 4 12.b even 2 1
2352.3.f.e 4 84.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(882, [\chi])\):

\( T_{5}^{4} + 72 T_{5}^{2} + 144 \)
\( T_{23}^{2} - 24 T_{23} - 504 \)

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( ( -2 + T^{2} )^{2} \)
$3$ \( T^{4} \)
$5$ \( 144 + 72 T^{2} + T^{4} \)
$7$ \( T^{4} \)
$11$ \( ( 6 + T )^{4} \)
$13$ \( 145161 + 774 T^{2} + T^{4} \)
$17$ \( 28224 + 432 T^{2} + T^{4} \)
$19$ \( 15129 + 342 T^{2} + T^{4} \)
$23$ \( ( -504 - 24 T + T^{2} )^{2} \)
$29$ \( ( -1152 + T^{2} )^{2} \)
$31$ \( 423801 + 2166 T^{2} + T^{4} \)
$37$ \( ( -167 + 22 T + T^{2} )^{2} \)
$41$ \( 3732624 + 4248 T^{2} + T^{4} \)
$43$ \( ( -23 - 14 T + T^{2} )^{2} \)
$47$ \( 2039184 + 2952 T^{2} + T^{4} \)
$53$ \( ( 2952 - 120 T + T^{2} )^{2} \)
$59$ \( 1272384 + 2448 T^{2} + T^{4} \)
$61$ \( 2304 + 1632 T^{2} + T^{4} \)
$67$ \( ( -503 + 110 T + T^{2} )^{2} \)
$71$ \( ( 2556 + 156 T + T^{2} )^{2} \)
$73$ \( 85322169 + 19926 T^{2} + T^{4} \)
$79$ \( ( -8687 - 10 T + T^{2} )^{2} \)
$83$ \( 69956496 + 17928 T^{2} + T^{4} \)
$89$ \( ( 432 + T^{2} )^{2} \)
$97$ \( 112896 + 1056 T^{2} + T^{4} \)
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