Properties

Label 9360.2.k.a
Level $9360$
Weight $2$
Character orbit 9360.k
Analytic conductor $74.740$
Analytic rank $0$
Dimension $16$
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] = [9360,2,Mod(4031,9360)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(9360, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 1, 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("9360.4031");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 9360 = 2^{4} \cdot 3^{2} \cdot 5 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9360.k (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: \(74.7399762919\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: 16.0.29960650073923649536.7
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 7x^{12} + 40x^{8} - 112x^{4} + 256 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 2^{14}\cdot 3^{6} \)
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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{5} - \beta_{10} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{5} - \beta_{10} q^{7} - \beta_{3} q^{11} - q^{13} + ( - \beta_{14} - \beta_{5} - \beta_1) q^{17} + \beta_{6} q^{19} + (\beta_{15} - \beta_{12}) q^{23} - q^{25} + ( - \beta_{8} - 2 \beta_{5} - 2 \beta_1) q^{29} + 2 \beta_{2} q^{31} - \beta_{12} q^{35} + (2 \beta_{11} - 3 \beta_{9} - \beta_{7} - 2) q^{37} + (\beta_{8} + 3 \beta_{5} + \beta_1) q^{41} + \beta_{6} q^{43} + (\beta_{15} + \beta_{12} + \cdots + \beta_{3}) q^{47}+ \cdots + (2 \beta_{11} - \beta_{9} - \beta_{7} - 2) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 16 q^{13} - 16 q^{25} - 8 q^{37} - 24 q^{49} - 24 q^{61} - 32 q^{73} + 8 q^{85} - 24 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 7x^{12} + 40x^{8} - 112x^{4} + 256 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{10} - 3\nu^{6} + 12\nu^{2} ) / 16 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - \nu^{15} + 2 \nu^{12} - \nu^{11} - 16 \nu^{9} + 10 \nu^{8} - 16 \nu^{7} + 48 \nu^{5} - 56 \nu^{4} + \cdots + 256 ) / 128 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{15} + \nu^{14} + \nu^{11} - 3 \nu^{10} - 16 \nu^{9} + 16 \nu^{7} - 4 \nu^{6} + 48 \nu^{5} + \cdots - 320 \nu ) / 128 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - \nu^{15} + 2 \nu^{14} - \nu^{11} - 6 \nu^{10} + 16 \nu^{9} - 16 \nu^{7} - 8 \nu^{6} + \cdots + 320 \nu ) / 128 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{15} - 4 \nu^{14} - 6 \nu^{13} - 3 \nu^{11} + 12 \nu^{10} + 34 \nu^{9} - 4 \nu^{7} + \cdots + 256 \nu ) / 256 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - \nu^{15} - 4 \nu^{12} - \nu^{11} - 16 \nu^{9} - 20 \nu^{8} - 16 \nu^{7} + 48 \nu^{5} + 112 \nu^{4} + \cdots - 512 ) / 128 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -\nu^{15} + 6\nu^{13} + 27\nu^{11} - 66\nu^{9} - 132\nu^{7} + 248\nu^{5} + 384\nu^{3} - 384\nu ) / 256 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( \nu^{15} + 6\nu^{13} - 27\nu^{11} - 66\nu^{9} + 132\nu^{7} + 248\nu^{5} - 384\nu^{3} - 384\nu ) / 256 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - \nu^{15} - 6 \nu^{13} - 16 \nu^{12} + 3 \nu^{11} + 34 \nu^{9} + 112 \nu^{8} + 4 \nu^{7} + \cdots + 768 ) / 256 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - \nu^{15} + \nu^{13} - 2 \nu^{12} + 5 \nu^{11} - 3 \nu^{9} + 6 \nu^{8} - 18 \nu^{7} - 4 \nu^{5} + \cdots + 64 ) / 64 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( -\nu^{15} - 3\nu^{13} + 9\nu^{11} + 9\nu^{9} - 30\nu^{7} - 52\nu^{5} + 120\nu^{3} + 96\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - \nu^{15} - 2 \nu^{14} - \nu^{13} + 5 \nu^{11} + 10 \nu^{10} + 3 \nu^{9} - 18 \nu^{7} - 36 \nu^{6} + \cdots - 32 \nu ) / 64 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - \nu^{15} + \nu^{13} + 4 \nu^{12} + 5 \nu^{11} - 3 \nu^{9} - 12 \nu^{8} - 18 \nu^{7} - 4 \nu^{5} + \cdots - 128 ) / 64 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -\nu^{15} + 3\nu^{13} + 9\nu^{11} - 9\nu^{9} - 30\nu^{7} + 52\nu^{5} + 120\nu^{3} - 96\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( \nu^{15} - 4 \nu^{14} + \nu^{13} - 5 \nu^{11} + 20 \nu^{10} - 3 \nu^{9} + 18 \nu^{7} - 72 \nu^{6} + \cdots + 32 \nu ) / 64 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{14} + \beta_{11} + 2\beta_{8} + 2\beta_{7} - \beta_{6} + \beta_{4} - 2\beta_{3} - 2\beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{15} - \beta_{14} + \beta_{12} - \beta_{8} - 3\beta_{5} + 2\beta_{4} + 2\beta_{3} - 3\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 2 \beta_{15} + 5 \beta_{14} - 2 \beta_{13} - 4 \beta_{12} + 5 \beta_{11} - 4 \beta_{10} + \cdots + 2 \beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 3\beta_{13} - \beta_{11} - 3\beta_{10} + 3\beta_{9} + \beta_{7} + 2\beta_{6} - 2\beta_{2} + 12 ) / 6 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( - 2 \beta_{15} + \beta_{14} - 2 \beta_{13} + 4 \beta_{12} - \beta_{11} - 4 \beta_{10} + \cdots - 2 \beta_{2} ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 3\beta_{15} - 7\beta_{14} + 3\beta_{12} - 7\beta_{8} - 21\beta_{5} - 2\beta_{4} - 2\beta_{3} - 9\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 2 \beta_{15} + 19 \beta_{14} - 2 \beta_{13} - 4 \beta_{12} + 19 \beta_{11} - 4 \beta_{10} + \cdots - 10 \beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 13\beta_{13} - 7\beta_{11} - 13\beta_{10} + 21\beta_{9} + 7\beta_{7} - 2\beta_{6} + 2\beta_{2} - 36 ) / 6 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( - 18 \beta_{15} + 29 \beta_{14} - 18 \beta_{13} + 36 \beta_{12} - 29 \beta_{11} - 36 \beta_{10} + \cdots - 10 \beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( -\beta_{15} - 3\beta_{14} - \beta_{12} - 3\beta_{8} - 9\beta_{5} - 10\beta_{4} - 10\beta_{3} + 35\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 18 \beta_{15} + 13 \beta_{14} + 18 \beta_{13} + 36 \beta_{12} + 13 \beta_{11} + 36 \beta_{10} + \cdots - 86 \beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( 19\beta_{13} + 7\beta_{11} - 19\beta_{10} - 21\beta_{9} - 7\beta_{7} - 62\beta_{6} + 62\beta_{2} - 252 ) / 6 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 50 \beta_{15} + 131 \beta_{14} + 50 \beta_{13} - 100 \beta_{12} - 131 \beta_{11} + 100 \beta_{10} + \cdots + 10 \beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( -93\beta_{15} + 41\beta_{14} - 93\beta_{12} + 41\beta_{8} + 123\beta_{5} - 34\beta_{4} - 34\beta_{3} + 567\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 6 \beta_{15} - 79 \beta_{14} - 6 \beta_{13} - 12 \beta_{12} - 79 \beta_{11} - 12 \beta_{10} + \cdots - 78 \beta_{2} ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/9360\mathbb{Z}\right)^\times\).

\(n\) \(2081\) \(2341\) \(5617\) \(5761\) \(8191\)
\(\chi(n)\) \(-1\) \(1\) \(1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
4031.1
0.481610 + 1.32968i
1.38588 0.281691i
−1.32968 0.481610i
−1.38588 + 0.281691i
0.281691 1.38588i
−0.481610 1.32968i
−0.281691 + 1.38588i
1.32968 + 0.481610i
1.32968 0.481610i
−0.281691 1.38588i
−0.481610 + 1.32968i
0.281691 + 1.38588i
−1.38588 0.281691i
−1.32968 + 0.481610i
1.38588 + 0.281691i
0.481610 1.32968i
0 0 0 1.00000i 0 4.21980i 0 0 0
4031.2 0 0 0 1.00000i 0 3.29472i 0 0 0
4031.3 0 0 0 1.00000i 0 1.82110i 0 0 0
4031.4 0 0 0 1.00000i 0 1.42187i 0 0 0
4031.5 0 0 0 1.00000i 0 1.42187i 0 0 0
4031.6 0 0 0 1.00000i 0 1.82110i 0 0 0
4031.7 0 0 0 1.00000i 0 3.29472i 0 0 0
4031.8 0 0 0 1.00000i 0 4.21980i 0 0 0
4031.9 0 0 0 1.00000i 0 4.21980i 0 0 0
4031.10 0 0 0 1.00000i 0 3.29472i 0 0 0
4031.11 0 0 0 1.00000i 0 1.82110i 0 0 0
4031.12 0 0 0 1.00000i 0 1.42187i 0 0 0
4031.13 0 0 0 1.00000i 0 1.42187i 0 0 0
4031.14 0 0 0 1.00000i 0 1.82110i 0 0 0
4031.15 0 0 0 1.00000i 0 3.29472i 0 0 0
4031.16 0 0 0 1.00000i 0 4.21980i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 4031.16
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 9360.2.k.a 16
3.b odd 2 1 inner 9360.2.k.a 16
4.b odd 2 1 inner 9360.2.k.a 16
12.b even 2 1 inner 9360.2.k.a 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
9360.2.k.a 16 1.a even 1 1 trivial
9360.2.k.a 16 3.b odd 2 1 inner
9360.2.k.a 16 4.b odd 2 1 inner
9360.2.k.a 16 12.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{8} + 34T_{7}^{6} + 353T_{7}^{4} + 1224T_{7}^{2} + 1296 \) acting on \(S_{2}^{\mathrm{new}}(9360, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( (T^{2} + 1)^{8} \) Copy content Toggle raw display
$7$ \( (T^{8} + 34 T^{6} + \cdots + 1296)^{2} \) Copy content Toggle raw display
$11$ \( (T^{8} - 38 T^{6} + \cdots + 324)^{2} \) Copy content Toggle raw display
$13$ \( (T + 1)^{16} \) Copy content Toggle raw display
$17$ \( (T^{8} + 54 T^{6} + \cdots + 324)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} + 68 T^{6} + \cdots + 20736)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} - 94 T^{6} + \cdots + 5184)^{2} \) Copy content Toggle raw display
$29$ \( (T^{8} + 108 T^{6} + \cdots + 5184)^{2} \) Copy content Toggle raw display
$31$ \( (T^{8} + 152 T^{6} + \cdots + 82944)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 2 T^{3} + \cdots + 612)^{4} \) Copy content Toggle raw display
$41$ \( (T^{8} + 206 T^{6} + \cdots + 374544)^{2} \) Copy content Toggle raw display
$43$ \( (T^{8} + 68 T^{6} + \cdots + 20736)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} - 90 T^{2} + 648)^{4} \) Copy content Toggle raw display
$53$ \( (T^{8} + 150 T^{6} + \cdots + 324)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} - 90 T^{2} + 648)^{4} \) Copy content Toggle raw display
$61$ \( (T^{4} + 6 T^{3} + \cdots - 4496)^{4} \) Copy content Toggle raw display
$67$ \( (T^{8} + 272 T^{6} + \cdots + 20736)^{2} \) Copy content Toggle raw display
$71$ \( (T^{8} - 454 T^{6} + \cdots + 104898564)^{2} \) Copy content Toggle raw display
$73$ \( (T + 2)^{16} \) Copy content Toggle raw display
$79$ \( (T^{4} + 63 T^{2} + 648)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} - 188 T^{6} + \cdots + 82944)^{2} \) Copy content Toggle raw display
$89$ \( (T^{8} + 78 T^{6} + \cdots + 1296)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 6 T^{3} + \cdots + 188)^{4} \) Copy content Toggle raw display
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