Properties

Label 912.2.d.a
Level $912$
Weight $2$
Character orbit 912.d
Analytic conductor $7.282$
Analytic rank $0$
Dimension $12$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [912,2,Mod(191,912)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(912, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("912.191");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 912 = 2^{4} \cdot 3 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 912.d (of order \(2\), degree \(1\), minimal)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(7.28235666434\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: 12.0.2593100598870016.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - 2x^{10} + x^{8} + 4x^{6} + 4x^{4} - 32x^{2} + 64 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{5} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{11}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{9} q^{3} + (\beta_{10} + \beta_{3} - \beta_{2}) q^{5} + ( - \beta_{4} - \beta_1) q^{7} + ( - \beta_{10} + \beta_{5}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{9} q^{3} + (\beta_{10} + \beta_{3} - \beta_{2}) q^{5} + ( - \beta_{4} - \beta_1) q^{7} + ( - \beta_{10} + \beta_{5}) q^{9} + (\beta_{11} + \beta_{9} + \cdots + 2 \beta_{6}) q^{11}+ \cdots + ( - 3 \beta_{11} - \beta_{9} + \cdots + 3 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 4 q^{9} - 12 q^{21} + 4 q^{25} - 12 q^{33} - 16 q^{37} + 16 q^{45} - 4 q^{49} - 24 q^{61} + 8 q^{69} + 40 q^{73} + 28 q^{81} - 40 q^{85} + 40 q^{93} - 16 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{12} - 2x^{10} + x^{8} + 4x^{6} + 4x^{4} - 32x^{2} + 64 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{8} - \nu^{4} + 2\nu^{2} - 8 ) / 16 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{11} - 2 \nu^{10} + 2 \nu^{9} - 4 \nu^{8} + 9 \nu^{7} + 14 \nu^{6} + 8 \nu^{5} + 16 \nu^{4} + \cdots + 32 ) / 128 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - \nu^{11} - 2 \nu^{10} - 2 \nu^{9} - 4 \nu^{8} - 9 \nu^{7} + 14 \nu^{6} - 8 \nu^{5} + 16 \nu^{4} + \cdots + 32 ) / 128 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{10} - \nu^{8} + \nu^{6} + 5\nu^{4} + 18\nu^{2} - 24 ) / 16 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -3\nu^{10} + 2\nu^{8} + 5\nu^{6} - 12\nu^{2} + 48 ) / 32 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{11} - 2\nu^{9} + 7\nu^{7} - 8\nu^{5} + 12\nu^{3} - 16\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( \nu^{11} + 2\nu^{9} - 7\nu^{7} + 8\nu^{5} + 52\nu^{3} - 48\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 3 \nu^{11} + 2 \nu^{10} + 2 \nu^{9} - 4 \nu^{8} + 5 \nu^{7} - 14 \nu^{6} - 16 \nu^{5} + 40 \nu^{4} + \cdots - 96 ) / 128 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 3 \nu^{11} + 2 \nu^{10} - 2 \nu^{9} - 4 \nu^{8} - 5 \nu^{7} - 14 \nu^{6} + 16 \nu^{5} + 40 \nu^{4} + \cdots - 96 ) / 128 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( \nu^{11} - 2\nu^{9} + \nu^{7} + 4\nu^{5} + 4\nu^{3} ) / 32 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( -\nu^{11} - \nu^{7} + 10\nu^{5} - 16\nu^{3} + 16\nu ) / 32 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{10} - \beta_{9} + \beta_{8} - \beta_{6} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{5} + \beta_{4} - \beta_{3} - \beta_{2} + \beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{10} - \beta_{9} + \beta_{8} + 2\beta_{7} + \beta_{6} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 2\beta_{9} + 2\beta_{8} + \beta_{5} + \beta_{4} + \beta_{3} + \beta_{2} - 3\beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 4\beta_{11} + \beta_{10} + \beta_{9} - \beta_{8} + 2\beta_{7} + \beta_{6} - 2\beta_{3} + 2\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -4\beta_{9} - 4\beta_{8} + \beta_{5} + 5\beta_{4} + 3\beta_{3} + 3\beta_{2} - 3\beta _1 - 3 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -3\beta_{10} + 3\beta_{9} - 3\beta_{8} - 2\beta_{7} + 9\beta_{6} - 8\beta_{3} + 8\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( -2\beta_{9} - 2\beta_{8} + \beta_{5} + \beta_{4} - 3\beta_{3} - 3\beta_{2} - 27\beta _1 - 15 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( -4\beta_{11} - 23\beta_{10} + 5\beta_{9} - 5\beta_{8} + 2\beta_{7} - 7\beta_{6} - 14\beta_{3} + 14\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( -8\beta_{9} - 8\beta_{8} - 23\beta_{5} + 5\beta_{4} + 7\beta_{3} + 7\beta_{2} - 27\beta _1 + 13 ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( -24\beta_{11} + 13\beta_{10} + 7\beta_{9} - 7\beta_{8} - 10\beta_{7} - 31\beta_{6} - 12\beta_{3} + 12\beta_{2} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/912\mathbb{Z}\right)^\times\).

\(n\) \(97\) \(229\) \(305\) \(799\)
\(\chi(n)\) \(1\) \(1\) \(-1\) \(-1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
191.1
−1.37027 0.349801i
−1.37027 + 0.349801i
0.430469 1.34711i
0.430469 + 1.34711i
−1.19877 0.750295i
−1.19877 + 0.750295i
1.19877 + 0.750295i
1.19877 0.750295i
−0.430469 + 1.34711i
−0.430469 1.34711i
1.37027 + 0.349801i
1.37027 0.349801i
0 −1.72007 0.203364i 0 2.74054i 0 1.91729i 0 2.91729 + 0.699602i 0
191.2 0 −1.72007 + 0.203364i 0 2.74054i 0 1.91729i 0 2.91729 0.699602i 0
191.3 0 −0.916638 1.46962i 0 0.860938i 0 2.31955i 0 −1.31955 + 2.69421i 0
191.4 0 −0.916638 + 1.46962i 0 0.860938i 0 2.31955i 0 −1.31955 2.69421i 0
191.5 0 −0.448478 1.67298i 0 2.39755i 0 3.59774i 0 −2.59774 + 1.50059i 0
191.6 0 −0.448478 + 1.67298i 0 2.39755i 0 3.59774i 0 −2.59774 1.50059i 0
191.7 0 0.448478 1.67298i 0 2.39755i 0 3.59774i 0 −2.59774 1.50059i 0
191.8 0 0.448478 + 1.67298i 0 2.39755i 0 3.59774i 0 −2.59774 + 1.50059i 0
191.9 0 0.916638 1.46962i 0 0.860938i 0 2.31955i 0 −1.31955 2.69421i 0
191.10 0 0.916638 + 1.46962i 0 0.860938i 0 2.31955i 0 −1.31955 + 2.69421i 0
191.11 0 1.72007 0.203364i 0 2.74054i 0 1.91729i 0 2.91729 0.699602i 0
191.12 0 1.72007 + 0.203364i 0 2.74054i 0 1.91729i 0 2.91729 + 0.699602i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 191.12
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
4.b odd 2 1 inner
12.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 912.2.d.a 12
3.b odd 2 1 inner 912.2.d.a 12
4.b odd 2 1 inner 912.2.d.a 12
12.b even 2 1 inner 912.2.d.a 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
912.2.d.a 12 1.a even 1 1 trivial
912.2.d.a 12 3.b odd 2 1 inner
912.2.d.a 12 4.b odd 2 1 inner
912.2.d.a 12 12.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{6} + 14T_{5}^{4} + 53T_{5}^{2} + 32 \) acting on \(S_{2}^{\mathrm{new}}(912, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} \) Copy content Toggle raw display
$3$ \( T^{12} + 2 T^{10} + \cdots + 729 \) Copy content Toggle raw display
$5$ \( (T^{6} + 14 T^{4} + \cdots + 32)^{2} \) Copy content Toggle raw display
$7$ \( (T^{6} + 22 T^{4} + \cdots + 256)^{2} \) Copy content Toggle raw display
$11$ \( (T^{6} - 36 T^{4} + 17 T^{2} - 2)^{2} \) Copy content Toggle raw display
$13$ \( (T^{3} - 10 T + 4)^{4} \) Copy content Toggle raw display
$17$ \( (T^{6} + 70 T^{4} + \cdots + 200)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 1)^{6} \) Copy content Toggle raw display
$23$ \( (T^{6} - 106 T^{4} + \cdots - 8192)^{2} \) Copy content Toggle raw display
$29$ \( (T^{6} + 130 T^{4} + \cdots + 76832)^{2} \) Copy content Toggle raw display
$31$ \( (T^{6} + 32 T^{4} + \cdots + 256)^{2} \) Copy content Toggle raw display
$37$ \( (T^{3} + 4 T^{2} + \cdots - 428)^{4} \) Copy content Toggle raw display
$41$ \( (T^{6} + 130 T^{4} + \cdots + 72200)^{2} \) Copy content Toggle raw display
$43$ \( (T^{6} + 38 T^{4} + \cdots + 16)^{2} \) Copy content Toggle raw display
$47$ \( (T^{6} - 60 T^{4} + \cdots - 1922)^{2} \) Copy content Toggle raw display
$53$ \( (T^{6} + 98 T^{4} + \cdots + 2888)^{2} \) Copy content Toggle raw display
$59$ \( (T^{6} - 104 T^{4} + \cdots - 3200)^{2} \) Copy content Toggle raw display
$61$ \( (T^{3} + 6 T^{2} + \cdots - 200)^{4} \) Copy content Toggle raw display
$67$ \( (T^{6} + 272 T^{4} + \cdots + 1024)^{2} \) Copy content Toggle raw display
$71$ \( (T^{6} - 256 T^{4} + \cdots - 549152)^{2} \) Copy content Toggle raw display
$73$ \( (T^{3} - 10 T^{2} + \cdots - 80)^{4} \) Copy content Toggle raw display
$79$ \( (T^{6} + 228 T^{4} + \cdots + 43264)^{2} \) Copy content Toggle raw display
$83$ \( (T^{6} - 370 T^{4} + \cdots - 850208)^{2} \) Copy content Toggle raw display
$89$ \( (T^{6} + 162 T^{4} + \cdots + 5832)^{2} \) Copy content Toggle raw display
$97$ \( (T^{3} + 4 T^{2} + \cdots - 652)^{4} \) Copy content Toggle raw display
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