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Properties

Label 2916.1.k.a.809.1
Level $2916$
Weight $1$
Character 2916.809
Analytic conductor $1.455$
Analytic rank $0$
Dimension $6$
Projective image $D_{3}$
CM discriminant -3
Inner twists $12$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [2916,1,Mod(161,2916)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("2916.161"); S:= CuspForms(chi, 1); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2916, base_ring=CyclotomicField(18)) chi = DirichletCharacter(H, H._module([0, 11])) B = ModularForms(chi, 1).cuspidal_submodule().basis() N = [B[i] for i in range(len(B))]
 
Level: \( N \) \(=\) \( 2916 = 2^{2} \cdot 3^{6} \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2916.k (of order \(18\), degree \(6\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(37)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(1.45527357684\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: \(\Q(\zeta_{18})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{3} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 972)
Projective image: \(D_{3}\)
Projective field: Galois closure of \(\Q(\sqrt[3]{12})\)
Artin image: $S_3\times C_9$
Artin field: Galois closure of \(\mathbb{Q}[x]/(x^{18} + \cdots)\)

Embedding invariants

Embedding label 809.1
Root \(0.939693 + 0.342020i\) of defining polynomial
Character \(\chi\) \(=\) 2916.809
Dual form 2916.1.k.a.2105.1

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 
\(f(q)\) \(=\) \(q+(0.939693 - 0.342020i) q^{7} +(0.347296 + 1.96962i) q^{13} +(-1.00000 + 1.73205i) q^{19} +(0.173648 - 0.984808i) q^{25} +(0.939693 + 0.342020i) q^{31} +(0.500000 + 0.866025i) q^{37} +(-0.766044 - 0.642788i) q^{43} +(0.939693 - 0.342020i) q^{61} +(-0.173648 - 0.984808i) q^{67} +(0.500000 - 0.866025i) q^{73} +(0.347296 - 1.96962i) q^{79} +(1.00000 + 1.73205i) q^{91} +(1.53209 + 1.28558i) q^{97} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 6 q^{19} + 3 q^{37} + 3 q^{73} + 6 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2916\mathbb{Z}\right)^\times\).

\(n\) \(1459\) \(2189\)
\(\chi(n)\) \(1\) \(e\left(\frac{1}{18}\right)\)

Coefficient data

For each \(n\) we display the coefficients of the \(q\)-expansion \(a_n\), the Satake parameters \(\alpha_p\), and the Satake angles \(\theta_p = \textrm{Arg}(\alpha_p)\). You can download additional coefficients here.



Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)
Significant digits:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0 0
\(3\) 0 0
\(4\) 0 0
\(5\) 0 0 0.766044 − 0.642788i \(-0.222222\pi\)
−0.766044 + 0.642788i \(0.777778\pi\)
\(6\) 0 0
\(7\) 0.939693 − 0.342020i 0.939693 − 0.342020i 0.173648 − 0.984808i \(-0.444444\pi\)
0.766044 + 0.642788i \(0.222222\pi\)
\(8\) 0 0
\(9\) 0 0
\(10\) 0 0
\(11\) 0 0 −0.766044 − 0.642788i \(-0.777778\pi\)
0.766044 + 0.642788i \(0.222222\pi\)
\(12\) 0 0
\(13\) 0.347296 + 1.96962i 0.347296 + 1.96962i 0.173648 + 0.984808i \(0.444444\pi\)
0.173648 + 0.984808i \(0.444444\pi\)
\(14\) 0 0
\(15\) 0 0
\(16\) 0 0
\(17\) 0 0 −0.500000 − 0.866025i \(-0.666667\pi\)
0.500000 + 0.866025i \(0.333333\pi\)
\(18\) 0 0
\(19\) −1.00000 + 1.73205i −1.00000 + 1.73205i −0.500000 + 0.866025i \(0.666667\pi\)
−0.500000 + 0.866025i \(0.666667\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 0 0
\(23\) 0 0 −0.939693 − 0.342020i \(-0.888889\pi\)
0.939693 + 0.342020i \(0.111111\pi\)
\(24\) 0 0
\(25\) 0.173648 − 0.984808i 0.173648 − 0.984808i
\(26\) 0 0
\(27\) 0 0
\(28\) 0 0
\(29\) 0 0 0.173648 − 0.984808i \(-0.444444\pi\)
−0.173648 + 0.984808i \(0.555556\pi\)
\(30\) 0 0
\(31\) 0.939693 + 0.342020i 0.939693 + 0.342020i 0.766044 − 0.642788i \(-0.222222\pi\)
0.173648 + 0.984808i \(0.444444\pi\)
\(32\) 0 0
\(33\) 0 0
\(34\) 0 0
\(35\) 0 0
\(36\) 0 0
\(37\) 0.500000 + 0.866025i 0.500000 + 0.866025i 1.00000 \(0\)
−0.500000 + 0.866025i \(0.666667\pi\)
\(38\) 0 0
\(39\) 0 0
\(40\) 0 0
\(41\) 0 0 −0.173648 − 0.984808i \(-0.555556\pi\)
0.173648 + 0.984808i \(0.444444\pi\)
\(42\) 0 0
\(43\) −0.766044 − 0.642788i −0.766044 − 0.642788i 0.173648 − 0.984808i \(-0.444444\pi\)
−0.939693 + 0.342020i \(0.888889\pi\)
\(44\) 0 0
\(45\) 0 0
\(46\) 0 0
\(47\) 0 0 0.939693 − 0.342020i \(-0.111111\pi\)
−0.939693 + 0.342020i \(0.888889\pi\)
\(48\) 0 0
\(49\) 0 0
\(50\) 0 0
\(51\) 0 0
\(52\) 0 0
\(53\) 0 0 1.00000 \(0\)
−1.00000 \(\pi\)
\(54\) 0 0
\(55\) 0 0
\(56\) 0 0
\(57\) 0 0
\(58\) 0 0
\(59\) 0 0 0.766044 − 0.642788i \(-0.222222\pi\)
−0.766044 + 0.642788i \(0.777778\pi\)
\(60\) 0 0
\(61\) 0.939693 − 0.342020i 0.939693 − 0.342020i 0.173648 − 0.984808i \(-0.444444\pi\)
0.766044 + 0.642788i \(0.222222\pi\)
\(62\) 0 0
\(63\) 0 0
\(64\) 0 0
\(65\) 0 0
\(66\) 0 0
\(67\) −0.173648 − 0.984808i −0.173648 − 0.984808i −0.939693 − 0.342020i \(-0.888889\pi\)
0.766044 − 0.642788i \(-0.222222\pi\)
\(68\) 0 0
\(69\) 0 0
\(70\) 0 0
\(71\) 0 0 −0.500000 − 0.866025i \(-0.666667\pi\)
0.500000 + 0.866025i \(0.333333\pi\)
\(72\) 0 0
\(73\) 0.500000 − 0.866025i 0.500000 − 0.866025i −0.500000 − 0.866025i \(-0.666667\pi\)
1.00000 \(0\)
\(74\) 0 0
\(75\) 0 0
\(76\) 0 0
\(77\) 0 0
\(78\) 0 0
\(79\) 0.347296 − 1.96962i 0.347296 − 1.96962i 0.173648 − 0.984808i \(-0.444444\pi\)
0.173648 − 0.984808i \(-0.444444\pi\)
\(80\) 0 0
\(81\) 0 0
\(82\) 0 0
\(83\) 0 0 0.173648 − 0.984808i \(-0.444444\pi\)
−0.173648 + 0.984808i \(0.555556\pi\)
\(84\) 0 0
\(85\) 0 0
\(86\) 0 0
\(87\) 0 0
\(88\) 0 0
\(89\) 0 0 0.500000 − 0.866025i \(-0.333333\pi\)
−0.500000 + 0.866025i \(0.666667\pi\)
\(90\) 0 0
\(91\) 1.00000 + 1.73205i 1.00000 + 1.73205i
\(92\) 0 0
\(93\) 0 0
\(94\) 0 0
\(95\) 0 0
\(96\) 0 0
\(97\) 1.53209 + 1.28558i 1.53209 + 1.28558i 0.766044 + 0.642788i \(0.222222\pi\)
0.766044 + 0.642788i \(0.222222\pi\)
\(98\) 0 0
\(99\) 0 0
Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)

Twists

       By twisting character
Char Parity Ord Type Twist Min Dim
1.1 even 1 trivial 2916.1.k.a.809.1 6
3.2 odd 2 CM 2916.1.k.a.809.1 6
9.2 odd 6 inner 2916.1.k.a.2753.1 6
9.4 even 3 inner 2916.1.k.a.1781.1 6
9.5 odd 6 inner 2916.1.k.a.1781.1 6
9.7 even 3 inner 2916.1.k.a.2753.1 6
27.2 odd 18 972.1.g.b.809.1 2
27.4 even 9 inner 2916.1.k.a.1133.1 6
27.5 odd 18 inner 2916.1.k.a.161.1 6
27.7 even 9 972.1.g.b.161.1 2
27.11 odd 18 972.1.c.a.485.1 ✓ 1
27.13 even 9 inner 2916.1.k.a.2105.1 6
27.14 odd 18 inner 2916.1.k.a.2105.1 6
27.16 even 9 972.1.c.a.485.1 ✓ 1
27.20 odd 18 972.1.g.b.161.1 2
27.22 even 9 inner 2916.1.k.a.161.1 6
27.23 odd 18 inner 2916.1.k.a.1133.1 6
27.25 even 9 972.1.g.b.809.1 2
108.7 odd 18 3888.1.q.a.161.1 2
108.11 even 18 3888.1.e.c.1457.1 1
108.43 odd 18 3888.1.e.c.1457.1 1
108.47 even 18 3888.1.q.a.161.1 2
108.79 odd 18 3888.1.q.a.2753.1 2
108.83 even 18 3888.1.q.a.2753.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
972.1.c.a.485.1 ✓ 1 27.11 odd 18
972.1.c.a.485.1 ✓ 1 27.16 even 9
972.1.g.b.161.1 2 27.7 even 9
972.1.g.b.161.1 2 27.20 odd 18
972.1.g.b.809.1 2 27.2 odd 18
972.1.g.b.809.1 2 27.25 even 9
2916.1.k.a.161.1 6 27.5 odd 18 inner
2916.1.k.a.161.1 6 27.22 even 9 inner
2916.1.k.a.809.1 6 1.1 even 1 trivial
2916.1.k.a.809.1 6 3.2 odd 2 CM
2916.1.k.a.1133.1 6 27.4 even 9 inner
2916.1.k.a.1133.1 6 27.23 odd 18 inner
2916.1.k.a.1781.1 6 9.4 even 3 inner
2916.1.k.a.1781.1 6 9.5 odd 6 inner
2916.1.k.a.2105.1 6 27.13 even 9 inner
2916.1.k.a.2105.1 6 27.14 odd 18 inner
2916.1.k.a.2753.1 6 9.2 odd 6 inner
2916.1.k.a.2753.1 6 9.7 even 3 inner
3888.1.e.c.1457.1 1 108.11 even 18
3888.1.e.c.1457.1 1 108.43 odd 18
3888.1.q.a.161.1 2 108.7 odd 18
3888.1.q.a.161.1 2 108.47 even 18
3888.1.q.a.2753.1 2 108.79 odd 18
3888.1.q.a.2753.1 2 108.83 even 18