Properties

Label 6480.2.a.bb
Level $6480$
Weight $2$
Character orbit 6480.a
Self dual yes
Analytic conductor $51.743$
Analytic rank $1$
Dimension $2$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [6480,2,Mod(1,6480)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(6480, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 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("6480.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 6480 = 2^{4} \cdot 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 6480.a (trivial)

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: yes
Analytic conductor: \(51.7430605098\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{3}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 3 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 810)
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(\beta = \sqrt{3}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - q^{5} + (\beta - 2) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - q^{5} + (\beta - 2) q^{7} + 2 \beta q^{11} + ( - \beta + 2) q^{13} + 2 \beta q^{17} + ( - 4 \beta + 1) q^{19} + ( - 2 \beta - 3) q^{23} + q^{25} - 4 \beta q^{29} + (2 \beta - 2) q^{31} + ( - \beta + 2) q^{35} + 8 q^{37} + 3 \beta q^{41} + ( - 2 \beta - 2) q^{43} + (2 \beta - 3) q^{47} - 4 \beta q^{49} + ( - 2 \beta + 9) q^{53} - 2 \beta q^{55} - 5 \beta q^{59} + (6 \beta + 2) q^{61} + (\beta - 2) q^{65} - 8 q^{67} - 6 q^{71} + ( - 6 \beta - 4) q^{73} + ( - 4 \beta + 6) q^{77} + (6 \beta + 4) q^{79} + ( - 2 \beta - 12) q^{83} - 2 \beta q^{85} - 12 q^{89} + (4 \beta - 7) q^{91} + (4 \beta - 1) q^{95} + (4 \beta + 8) q^{97} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{5} - 4 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{5} - 4 q^{7} + 4 q^{13} + 2 q^{19} - 6 q^{23} + 2 q^{25} - 4 q^{31} + 4 q^{35} + 16 q^{37} - 4 q^{43} - 6 q^{47} + 18 q^{53} + 4 q^{61} - 4 q^{65} - 16 q^{67} - 12 q^{71} - 8 q^{73} + 12 q^{77} + 8 q^{79} - 24 q^{83} - 24 q^{89} - 14 q^{91} - 2 q^{95} + 16 q^{97}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
−1.73205
1.73205
0 0 0 −1.00000 0 −3.73205 0 0 0
1.2 0 0 0 −1.00000 0 −0.267949 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( -1 \)
\(5\) \( +1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 6480.2.a.bb 2
3.b odd 2 1 6480.2.a.bj 2
4.b odd 2 1 810.2.a.j 2
12.b even 2 1 810.2.a.l yes 2
20.d odd 2 1 4050.2.a.bt 2
20.e even 4 2 4050.2.c.z 4
36.f odd 6 2 810.2.e.n 4
36.h even 6 2 810.2.e.m 4
60.h even 2 1 4050.2.a.bk 2
60.l odd 4 2 4050.2.c.x 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
810.2.a.j 2 4.b odd 2 1
810.2.a.l yes 2 12.b even 2 1
810.2.e.m 4 36.h even 6 2
810.2.e.n 4 36.f odd 6 2
4050.2.a.bk 2 60.h even 2 1
4050.2.a.bt 2 20.d odd 2 1
4050.2.c.x 4 60.l odd 4 2
4050.2.c.z 4 20.e even 4 2
6480.2.a.bb 2 1.a even 1 1 trivial
6480.2.a.bj 2 3.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(6480))\):

\( T_{7}^{2} + 4T_{7} + 1 \) Copy content Toggle raw display
\( T_{11}^{2} - 12 \) Copy content Toggle raw display
\( T_{13}^{2} - 4T_{13} + 1 \) Copy content Toggle raw display
\( T_{17}^{2} - 12 \) Copy content Toggle raw display
\( T_{19}^{2} - 2T_{19} - 47 \) Copy content Toggle raw display
\( T_{23}^{2} + 6T_{23} - 3 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} \) Copy content Toggle raw display
$5$ \( (T + 1)^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 4T + 1 \) Copy content Toggle raw display
$11$ \( T^{2} - 12 \) Copy content Toggle raw display
$13$ \( T^{2} - 4T + 1 \) Copy content Toggle raw display
$17$ \( T^{2} - 12 \) Copy content Toggle raw display
$19$ \( T^{2} - 2T - 47 \) Copy content Toggle raw display
$23$ \( T^{2} + 6T - 3 \) Copy content Toggle raw display
$29$ \( T^{2} - 48 \) Copy content Toggle raw display
$31$ \( T^{2} + 4T - 8 \) Copy content Toggle raw display
$37$ \( (T - 8)^{2} \) Copy content Toggle raw display
$41$ \( T^{2} - 27 \) Copy content Toggle raw display
$43$ \( T^{2} + 4T - 8 \) Copy content Toggle raw display
$47$ \( T^{2} + 6T - 3 \) Copy content Toggle raw display
$53$ \( T^{2} - 18T + 69 \) Copy content Toggle raw display
$59$ \( T^{2} - 75 \) Copy content Toggle raw display
$61$ \( T^{2} - 4T - 104 \) Copy content Toggle raw display
$67$ \( (T + 8)^{2} \) Copy content Toggle raw display
$71$ \( (T + 6)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} + 8T - 92 \) Copy content Toggle raw display
$79$ \( T^{2} - 8T - 92 \) Copy content Toggle raw display
$83$ \( T^{2} + 24T + 132 \) Copy content Toggle raw display
$89$ \( (T + 12)^{2} \) Copy content Toggle raw display
$97$ \( T^{2} - 16T + 16 \) Copy content Toggle raw display
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