Properties

Label 3920.1.j.a
Level $3920$
Weight $1$
Character orbit 3920.j
Self dual yes
Analytic conductor $1.956$
Analytic rank $0$
Dimension $1$
Projective image $D_{2}$
CM/RM discs -4, -20, 5
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3920,1,Mod(3039,3920)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3920, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 1, 0]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3920.3039");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3920 = 2^{4} \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 3920.j (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: yes
Analytic conductor: \(1.95633484952\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 80)
Projective image: \(D_{2}\)
Projective field: Galois closure of \(\Q(i, \sqrt{5})\)
Artin image: $D_4$
Artin field: Galois closure of 4.0.15680.1

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q + q^{5} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{5} - q^{9} + q^{25} + 2 q^{29} + 2 q^{41} - q^{45} + 2 q^{61} + q^{81} - 2 q^{89}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3920\mathbb{Z}\right)^\times\).

\(n\) \(981\) \(1471\) \(3041\) \(3137\)
\(\chi(n)\) \(1\) \(-1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
3039.1
0
0 0 0 1.00000 0 0 0 −1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
5.b even 2 1 RM by \(\Q(\sqrt{5}) \)
20.d odd 2 1 CM by \(\Q(\sqrt{-5}) \)

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3920.1.j.a 1
4.b odd 2 1 CM 3920.1.j.a 1
5.b even 2 1 RM 3920.1.j.a 1
7.b odd 2 1 80.1.h.a 1
7.c even 3 2 3920.1.bt.a 2
7.d odd 6 2 3920.1.bt.b 2
20.d odd 2 1 CM 3920.1.j.a 1
21.c even 2 1 720.1.j.a 1
28.d even 2 1 80.1.h.a 1
28.f even 6 2 3920.1.bt.b 2
28.g odd 6 2 3920.1.bt.a 2
35.c odd 2 1 80.1.h.a 1
35.f even 4 2 400.1.b.a 1
35.i odd 6 2 3920.1.bt.b 2
35.j even 6 2 3920.1.bt.a 2
56.e even 2 1 320.1.h.a 1
56.h odd 2 1 320.1.h.a 1
84.h odd 2 1 720.1.j.a 1
105.g even 2 1 720.1.j.a 1
105.k odd 4 2 3600.1.e.a 1
112.j even 4 2 1280.1.e.a 2
112.l odd 4 2 1280.1.e.a 2
140.c even 2 1 80.1.h.a 1
140.j odd 4 2 400.1.b.a 1
140.p odd 6 2 3920.1.bt.a 2
140.s even 6 2 3920.1.bt.b 2
168.e odd 2 1 2880.1.j.a 1
168.i even 2 1 2880.1.j.a 1
280.c odd 2 1 320.1.h.a 1
280.n even 2 1 320.1.h.a 1
280.s even 4 2 1600.1.b.a 1
280.y odd 4 2 1600.1.b.a 1
420.o odd 2 1 720.1.j.a 1
420.w even 4 2 3600.1.e.a 1
560.be even 4 2 1280.1.e.a 2
560.bf odd 4 2 1280.1.e.a 2
840.b odd 2 1 2880.1.j.a 1
840.u even 2 1 2880.1.j.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
80.1.h.a 1 7.b odd 2 1
80.1.h.a 1 28.d even 2 1
80.1.h.a 1 35.c odd 2 1
80.1.h.a 1 140.c even 2 1
320.1.h.a 1 56.e even 2 1
320.1.h.a 1 56.h odd 2 1
320.1.h.a 1 280.c odd 2 1
320.1.h.a 1 280.n even 2 1
400.1.b.a 1 35.f even 4 2
400.1.b.a 1 140.j odd 4 2
720.1.j.a 1 21.c even 2 1
720.1.j.a 1 84.h odd 2 1
720.1.j.a 1 105.g even 2 1
720.1.j.a 1 420.o odd 2 1
1280.1.e.a 2 112.j even 4 2
1280.1.e.a 2 112.l odd 4 2
1280.1.e.a 2 560.be even 4 2
1280.1.e.a 2 560.bf odd 4 2
1600.1.b.a 1 280.s even 4 2
1600.1.b.a 1 280.y odd 4 2
2880.1.j.a 1 168.e odd 2 1
2880.1.j.a 1 168.i even 2 1
2880.1.j.a 1 840.b odd 2 1
2880.1.j.a 1 840.u even 2 1
3600.1.e.a 1 105.k odd 4 2
3600.1.e.a 1 420.w even 4 2
3920.1.j.a 1 1.a even 1 1 trivial
3920.1.j.a 1 4.b odd 2 1 CM
3920.1.j.a 1 5.b even 2 1 RM
3920.1.j.a 1 20.d odd 2 1 CM
3920.1.bt.a 2 7.c even 3 2
3920.1.bt.a 2 28.g odd 6 2
3920.1.bt.a 2 35.j even 6 2
3920.1.bt.a 2 140.p odd 6 2
3920.1.bt.b 2 7.d odd 6 2
3920.1.bt.b 2 28.f even 6 2
3920.1.bt.b 2 35.i odd 6 2
3920.1.bt.b 2 140.s even 6 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{1}^{\mathrm{new}}(3920, [\chi])\):

\( T_{3} \) Copy content Toggle raw display
\( T_{11} \) Copy content Toggle raw display
\( T_{13} \) Copy content Toggle raw display
\( T_{41} - 2 \) 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
$5$ \( T - 1 \) Copy content Toggle raw display
$7$ \( T \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T \) Copy content Toggle raw display
$17$ \( T \) Copy content Toggle raw display
$19$ \( T \) Copy content Toggle raw display
$23$ \( T \) Copy content Toggle raw display
$29$ \( T - 2 \) Copy content Toggle raw display
$31$ \( T \) Copy content Toggle raw display
$37$ \( T \) Copy content Toggle raw display
$41$ \( T - 2 \) Copy content Toggle raw display
$43$ \( T \) Copy content Toggle raw display
$47$ \( T \) Copy content Toggle raw display
$53$ \( T \) Copy content Toggle raw display
$59$ \( T \) Copy content Toggle raw display
$61$ \( T - 2 \) Copy content Toggle raw display
$67$ \( T \) Copy content Toggle raw display
$71$ \( T \) Copy content Toggle raw display
$73$ \( T \) Copy content Toggle raw display
$79$ \( T \) Copy content Toggle raw display
$83$ \( T \) Copy content Toggle raw display
$89$ \( T + 2 \) Copy content Toggle raw display
$97$ \( T \) Copy content Toggle raw display
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