Properties

Label 3360.2.g.b
Level $3360$
Weight $2$
Character orbit 3360.g
Analytic conductor $26.830$
Analytic rank $0$
Dimension $12$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3360,2,Mod(1681,3360)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3360, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3360.1681");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3360 = 2^{5} \cdot 3 \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 3360.g (of order \(2\), degree \(1\), not 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: \(26.8297350792\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: 12.0.3058043990573056.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} + x^{10} - 8x^{7} - 16x^{5} + 16x^{2} + 64 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{23}]\)
Coefficient ring index: \( 2^{13} \)
Twist minimal: no (minimal twist has level 840)
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.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} + \beta_1 q^{5} - q^{7} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{3} + \beta_1 q^{5} - q^{7} - q^{9} - \beta_{6} q^{11} + \beta_{8} q^{13} - q^{15} + \beta_{7} q^{17} + \beta_{5} q^{19} - \beta_1 q^{21} + ( - \beta_{7} + \beta_{4} + \beta_{3} - 1) q^{23} - q^{25} - \beta_1 q^{27} + (\beta_{11} + \beta_{6} + \beta_1) q^{29} + ( - \beta_{7} + \beta_{4} + \beta_{3} + \cdots + 3) q^{31}+ \cdots + \beta_{6} q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 12 q^{7} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 12 q^{7} - 12 q^{9} - 12 q^{15} - 8 q^{23} - 12 q^{25} + 40 q^{31} + 16 q^{47} + 12 q^{49} + 12 q^{63} - 56 q^{71} - 16 q^{79} + 12 q^{81} - 16 q^{87}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{12} + x^{10} - 8x^{7} - 16x^{5} + 16x^{2} + 64 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{11} + \nu^{9} - 8\nu^{4} - 16\nu ) / 32 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{9} + 2\nu^{8} - \nu^{7} + 2\nu^{6} - 8\nu^{3} + 8\nu^{2} - 24\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{7} + \nu^{5} + 2\nu^{3} + 8\nu^{2} + 4 ) / 4 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{10} + \nu^{8} - 2\nu^{7} - 6\nu^{5} - 12\nu^{3} + 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{9} + 2\nu^{8} + \nu^{7} + 2\nu^{6} - 8\nu^{3} - 8\nu^{2} - 24\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{7} - 3\nu^{5} - 2\nu^{3} + 8\nu^{2} + 16 ) / 4 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( \nu^{10} - \nu^{9} + \nu^{8} - 3\nu^{7} - 6\nu^{5} + 8\nu^{4} - 4\nu^{3} + 16\nu^{2} + 8\nu + 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( \nu^{10} + \nu^{8} + 2\nu^{7} - 2\nu^{5} - 12\nu^{3} - 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -\nu^{11} - 3\nu^{9} + 4\nu^{8} - 2\nu^{7} + 12\nu^{6} + 16\nu^{4} - 16\nu^{3} + 16\nu^{2} - 32\nu ) / 16 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( \nu^{10} + \nu^{9} + \nu^{8} + 3\nu^{7} - 2\nu^{5} - 8\nu^{4} - 4\nu^{3} - 16\nu^{2} + 8\nu - 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 3\nu^{11} + 7\nu^{9} + 8\nu^{8} + 4\nu^{7} - 8\nu^{6} - 40\nu^{4} - 32\nu^{3} - 32\nu^{2} - 16\nu ) / 32 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{11} + \beta_{9} - \beta_{5} - \beta_{2} - \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{8} + \beta_{6} - \beta_{4} + \beta_{3} - 1 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -\beta_{11} + 2\beta_{10} - \beta_{9} - 2\beta_{8} + 2\beta_{7} + \beta_{5} - 2\beta_{4} + \beta_{2} + \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -2\beta_{10} + \beta_{8} + 2\beta_{7} - \beta_{6} + 2\beta_{5} - \beta_{4} - \beta_{3} - 2\beta_{2} + 1 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( \beta_{11} - 2 \beta_{10} + \beta_{9} + 2 \beta_{8} - 2 \beta_{7} - 4 \beta_{6} - \beta_{5} + 2 \beta_{4} + \cdots + 12 ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 2 \beta_{10} + 8 \beta_{9} - \beta_{8} - 2 \beta_{7} + \beta_{6} - 2 \beta_{5} + \beta_{4} + \beta_{3} + \cdots - 1 ) / 4 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - \beta_{11} + 2 \beta_{10} - \beta_{9} + 6 \beta_{8} + 2 \beta_{7} + 4 \beta_{6} + \beta_{5} + \cdots + 20 ) / 4 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 8 \beta_{11} + 6 \beta_{10} - 7 \beta_{8} + 10 \beta_{7} - \beta_{6} + 2 \beta_{5} - 9 \beta_{4} + \cdots + 1 ) / 4 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( \beta_{11} - 2 \beta_{10} + \beta_{9} + 2 \beta_{8} - 2 \beta_{7} + 4 \beta_{6} + 15 \beta_{5} + \cdots - 28 ) / 4 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 16 \beta_{11} + 10 \beta_{10} - 8 \beta_{9} + 7 \beta_{8} + 6 \beta_{7} - 15 \beta_{6} + 6 \beta_{5} + \cdots + 47 ) / 4 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 15 \beta_{11} - 14 \beta_{10} + 15 \beta_{9} + 6 \beta_{8} + 18 \beta_{7} - 12 \beta_{6} - 15 \beta_{5} + \cdots + 36 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3360\mathbb{Z}\right)^\times\).

\(n\) \(421\) \(1121\) \(1471\) \(1921\) \(2017\)
\(\chi(n)\) \(-1\) \(1\) \(1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1681.1
0.723626 + 1.21506i
1.41133 0.0902148i
−1.11568 0.869059i
0.422872 1.34951i
−0.210663 + 1.39844i
−1.23149 + 0.695292i
−1.23149 0.695292i
−0.210663 1.39844i
0.422872 + 1.34951i
−1.11568 + 0.869059i
1.41133 + 0.0902148i
0.723626 1.21506i
0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.2 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.3 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.4 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.5 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.6 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.7 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.8 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.9 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.10 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.11 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
1681.12 0 1.00000i 0 1.00000i 0 −1.00000 0 −1.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1681.12
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3360.2.g.b 12
4.b odd 2 1 840.2.g.c 12
8.b even 2 1 inner 3360.2.g.b 12
8.d odd 2 1 840.2.g.c 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
840.2.g.c 12 4.b odd 2 1
840.2.g.c 12 8.d odd 2 1
3360.2.g.b 12 1.a even 1 1 trivial
3360.2.g.b 12 8.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{11}^{12} + 72T_{11}^{10} + 1664T_{11}^{8} + 14336T_{11}^{6} + 55360T_{11}^{4} + 98304T_{11}^{2} + 65536 \) acting on \(S_{2}^{\mathrm{new}}(3360, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} \) Copy content Toggle raw display
$3$ \( (T^{2} + 1)^{6} \) Copy content Toggle raw display
$5$ \( (T^{2} + 1)^{6} \) Copy content Toggle raw display
$7$ \( (T + 1)^{12} \) Copy content Toggle raw display
$11$ \( T^{12} + 72 T^{10} + \cdots + 65536 \) Copy content Toggle raw display
$13$ \( T^{12} + 64 T^{10} + \cdots + 9216 \) Copy content Toggle raw display
$17$ \( (T^{6} - 48 T^{4} + \cdots + 768)^{2} \) Copy content Toggle raw display
$19$ \( T^{12} + 64 T^{10} + \cdots + 1024 \) Copy content Toggle raw display
$23$ \( (T^{6} + 4 T^{5} + \cdots - 128)^{2} \) Copy content Toggle raw display
$29$ \( T^{12} + 168 T^{10} + \cdots + 40144896 \) Copy content Toggle raw display
$31$ \( (T^{6} - 20 T^{5} + \cdots - 1024)^{2} \) Copy content Toggle raw display
$37$ \( T^{12} + \cdots + 373571584 \) Copy content Toggle raw display
$41$ \( (T^{6} - 156 T^{4} + \cdots - 49408)^{2} \) Copy content Toggle raw display
$43$ \( T^{12} + \cdots + 967458816 \) Copy content Toggle raw display
$47$ \( (T^{6} - 8 T^{5} + \cdots - 26176)^{2} \) Copy content Toggle raw display
$53$ \( T^{12} + \cdots + 94745764864 \) Copy content Toggle raw display
$59$ \( T^{12} + \cdots + 510504534016 \) Copy content Toggle raw display
$61$ \( T^{12} + 160 T^{10} + \cdots + 16384 \) Copy content Toggle raw display
$67$ \( T^{12} + \cdots + 1882865664 \) Copy content Toggle raw display
$71$ \( (T^{6} + 28 T^{5} + \cdots - 8768)^{2} \) Copy content Toggle raw display
$73$ \( (T^{6} - 272 T^{4} + \cdots + 152416)^{2} \) Copy content Toggle raw display
$79$ \( (T^{6} + 8 T^{5} + \cdots + 512)^{2} \) Copy content Toggle raw display
$83$ \( T^{12} + 672 T^{10} + \cdots + 84934656 \) Copy content Toggle raw display
$89$ \( (T^{6} - 44 T^{4} + \cdots - 512)^{2} \) Copy content Toggle raw display
$97$ \( (T^{6} - 400 T^{4} + \cdots - 652576)^{2} \) Copy content Toggle raw display
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