Properties

Label 63.1.d.a
Level $63$
Weight $1$
Character orbit 63.d
Self dual yes
Analytic conductor $0.031$
Analytic rank $0$
Dimension $1$
Projective image $D_{2}$
CM/RM discs -3, -7, 21
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [63,1,Mod(55,63)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(63, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("63.55");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 63 = 3^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 63.d (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: \(0.0314410957959\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{2}\)
Projective field: Galois closure of \(\Q(\sqrt{-3}, \sqrt{-7})\)
Artin image: $D_4$
Artin field: Galois closure of 4.0.189.1

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q - q^{4} - q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - q^{4} - q^{7} + q^{16} + q^{25} + q^{28} - 2 q^{37} - 2 q^{43} + q^{49} - q^{64} + 2 q^{67} + 2 q^{79}+O(q^{100}) \) Copy content Toggle raw display

Expression as an eta quotient

\(f(z) = \eta(3z)\eta(21z)=q\prod_{n=1}^\infty(1 - q^{3n})^{}(1 - q^{21n})^{}\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/63\mathbb{Z}\right)^\times\).

\(n\) \(10\) \(29\)
\(\chi(n)\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
55.1
0
0 0 −1.00000 0 0 −1.00000 0 0 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
3.b odd 2 1 CM by \(\Q(\sqrt{-3}) \)
7.b odd 2 1 CM by \(\Q(\sqrt{-7}) \)
21.c even 2 1 RM by \(\Q(\sqrt{21}) \)

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 63.1.d.a 1
3.b odd 2 1 CM 63.1.d.a 1
4.b odd 2 1 1008.1.f.a 1
5.b even 2 1 1575.1.h.b 1
5.c odd 4 2 1575.1.e.b 2
7.b odd 2 1 CM 63.1.d.a 1
7.c even 3 2 441.1.m.a 2
7.d odd 6 2 441.1.m.a 2
9.c even 3 2 567.1.l.b 2
9.d odd 6 2 567.1.l.b 2
12.b even 2 1 1008.1.f.a 1
15.d odd 2 1 1575.1.h.b 1
15.e even 4 2 1575.1.e.b 2
21.c even 2 1 RM 63.1.d.a 1
21.g even 6 2 441.1.m.a 2
21.h odd 6 2 441.1.m.a 2
28.d even 2 1 1008.1.f.a 1
35.c odd 2 1 1575.1.h.b 1
35.f even 4 2 1575.1.e.b 2
63.g even 3 2 3969.1.k.b 2
63.h even 3 2 3969.1.t.c 2
63.i even 6 2 3969.1.t.c 2
63.j odd 6 2 3969.1.t.c 2
63.k odd 6 2 3969.1.k.b 2
63.l odd 6 2 567.1.l.b 2
63.n odd 6 2 3969.1.k.b 2
63.o even 6 2 567.1.l.b 2
63.s even 6 2 3969.1.k.b 2
63.t odd 6 2 3969.1.t.c 2
84.h odd 2 1 1008.1.f.a 1
105.g even 2 1 1575.1.h.b 1
105.k odd 4 2 1575.1.e.b 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
63.1.d.a 1 1.a even 1 1 trivial
63.1.d.a 1 3.b odd 2 1 CM
63.1.d.a 1 7.b odd 2 1 CM
63.1.d.a 1 21.c even 2 1 RM
441.1.m.a 2 7.c even 3 2
441.1.m.a 2 7.d odd 6 2
441.1.m.a 2 21.g even 6 2
441.1.m.a 2 21.h odd 6 2
567.1.l.b 2 9.c even 3 2
567.1.l.b 2 9.d odd 6 2
567.1.l.b 2 63.l odd 6 2
567.1.l.b 2 63.o even 6 2
1008.1.f.a 1 4.b odd 2 1
1008.1.f.a 1 12.b even 2 1
1008.1.f.a 1 28.d even 2 1
1008.1.f.a 1 84.h odd 2 1
1575.1.e.b 2 5.c odd 4 2
1575.1.e.b 2 15.e even 4 2
1575.1.e.b 2 35.f even 4 2
1575.1.e.b 2 105.k odd 4 2
1575.1.h.b 1 5.b even 2 1
1575.1.h.b 1 15.d odd 2 1
1575.1.h.b 1 35.c odd 2 1
1575.1.h.b 1 105.g even 2 1
3969.1.k.b 2 63.g even 3 2
3969.1.k.b 2 63.k odd 6 2
3969.1.k.b 2 63.n odd 6 2
3969.1.k.b 2 63.s even 6 2
3969.1.t.c 2 63.h even 3 2
3969.1.t.c 2 63.i even 6 2
3969.1.t.c 2 63.j odd 6 2
3969.1.t.c 2 63.t odd 6 2

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(63, [\chi])\).

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
$7$ \( T + 1 \) 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
$29$ \( T \) Copy content Toggle raw display
$31$ \( T \) Copy content Toggle raw display
$37$ \( T + 2 \) Copy content Toggle raw display
$41$ \( T \) Copy content Toggle raw display
$43$ \( T + 2 \) 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
$61$ \( T \) Copy content Toggle raw display
$67$ \( T - 2 \) Copy content Toggle raw display
$71$ \( T \) Copy content Toggle raw display
$73$ \( T \) Copy content Toggle raw display
$79$ \( T - 2 \) Copy content Toggle raw display
$83$ \( T \) Copy content Toggle raw display
$89$ \( T \) Copy content Toggle raw display
$97$ \( T \) Copy content Toggle raw display
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