Properties

Label 6400.2.a.o
Level $6400$
Weight $2$
Character orbit 6400.a
Self dual yes
Analytic conductor $51.104$
Analytic rank $0$
Dimension $1$
CM discriminant -4
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [6400,2,Mod(1,6400)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(6400, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("6400.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 6400 = 2^{8} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 6400.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: \(51.1042572936\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 640)
Fricke sign: \(-1\)
Sato-Tate group: $N(\mathrm{U}(1))$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q - 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - 3 q^{9} + 6 q^{13} + 8 q^{17} - 4 q^{29} + 2 q^{37} + 10 q^{41} - 7 q^{49} - 14 q^{53} + 12 q^{61} - 16 q^{73} + 9 q^{81} - 10 q^{89} - 8 q^{97}+O(q^{100}) \) 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
0
0 0 0 0 0 0 0 −3.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

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

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 6400.2.a.o 1
4.b odd 2 1 CM 6400.2.a.o 1
5.b even 2 1 6400.2.a.j 1
5.c odd 4 2 1280.2.c.a 2
8.b even 2 1 6400.2.a.k 1
8.d odd 2 1 6400.2.a.k 1
16.e even 4 2 3200.2.d.f 2
16.f odd 4 2 3200.2.d.f 2
20.d odd 2 1 6400.2.a.j 1
20.e even 4 2 1280.2.c.a 2
40.e odd 2 1 6400.2.a.n 1
40.f even 2 1 6400.2.a.n 1
40.i odd 4 2 1280.2.c.d 2
40.k even 4 2 1280.2.c.d 2
80.i odd 4 2 640.2.f.a 2
80.j even 4 2 640.2.f.b yes 2
80.k odd 4 2 3200.2.d.d 2
80.q even 4 2 3200.2.d.d 2
80.s even 4 2 640.2.f.a 2
80.t odd 4 2 640.2.f.b yes 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
640.2.f.a 2 80.i odd 4 2
640.2.f.a 2 80.s even 4 2
640.2.f.b yes 2 80.j even 4 2
640.2.f.b yes 2 80.t odd 4 2
1280.2.c.a 2 5.c odd 4 2
1280.2.c.a 2 20.e even 4 2
1280.2.c.d 2 40.i odd 4 2
1280.2.c.d 2 40.k even 4 2
3200.2.d.d 2 80.k odd 4 2
3200.2.d.d 2 80.q even 4 2
3200.2.d.f 2 16.e even 4 2
3200.2.d.f 2 16.f odd 4 2
6400.2.a.j 1 5.b even 2 1
6400.2.a.j 1 20.d odd 2 1
6400.2.a.k 1 8.b even 2 1
6400.2.a.k 1 8.d odd 2 1
6400.2.a.n 1 40.e odd 2 1
6400.2.a.n 1 40.f even 2 1
6400.2.a.o 1 1.a even 1 1 trivial
6400.2.a.o 1 4.b odd 2 1 CM

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(6400))\):

\( T_{3} \) Copy content Toggle raw display
\( T_{7} \) Copy content Toggle raw display
\( T_{11} \) Copy content Toggle raw display
\( T_{13} - 6 \) Copy content Toggle raw display
\( T_{17} - 8 \) Copy content Toggle raw display
\( T_{29} + 4 \) Copy content Toggle raw display
\( T_{31} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T \) Copy content Toggle raw display
$7$ \( T \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T - 6 \) Copy content Toggle raw display
$17$ \( T - 8 \) Copy content Toggle raw display
$19$ \( T \) Copy content Toggle raw display
$23$ \( T \) Copy content Toggle raw display
$29$ \( T + 4 \) Copy content Toggle raw display
$31$ \( T \) Copy content Toggle raw display
$37$ \( T - 2 \) Copy content Toggle raw display
$41$ \( T - 10 \) Copy content Toggle raw display
$43$ \( T \) Copy content Toggle raw display
$47$ \( T \) Copy content Toggle raw display
$53$ \( T + 14 \) Copy content Toggle raw display
$59$ \( T \) Copy content Toggle raw display
$61$ \( T - 12 \) Copy content Toggle raw display
$67$ \( T \) Copy content Toggle raw display
$71$ \( T \) Copy content Toggle raw display
$73$ \( T + 16 \) Copy content Toggle raw display
$79$ \( T \) Copy content Toggle raw display
$83$ \( T \) Copy content Toggle raw display
$89$ \( T + 10 \) Copy content Toggle raw display
$97$ \( T + 8 \) Copy content Toggle raw display
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