Properties

Label 2624.1.bz.b
Level $2624$
Weight $1$
Character orbit 2624.bz
Analytic conductor $1.310$
Analytic rank $0$
Dimension $8$
Projective image $A_{5}$
CM/RM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2624,1,Mod(223,2624)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2624, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([5, 5, 4]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2624.223");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2624 = 2^{6} \cdot 41 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2624.bz (of order \(10\), degree \(4\), 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: \(1.30954659315\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{10})\)
Coefficient field: \(\Q(\zeta_{20})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{6} + x^{4} - x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(A_{5}\)
Projective field: Galois closure of 5.1.180848704.1

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q + (\zeta_{20}^{6} - \zeta_{20}^{4}) q^{3} + ( - \zeta_{20}^{9} + \zeta_{20}^{3}) q^{5} + (\zeta_{20}^{3} - \zeta_{20}) q^{7} + (\zeta_{20}^{8} - \zeta_{20}^{2} + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{20}^{6} - \zeta_{20}^{4}) q^{3} + ( - \zeta_{20}^{9} + \zeta_{20}^{3}) q^{5} + (\zeta_{20}^{3} - \zeta_{20}) q^{7} + (\zeta_{20}^{8} - \zeta_{20}^{2} + 1) q^{9} + \zeta_{20}^{4} q^{11} - \zeta_{20}^{3} q^{13} + (\zeta_{20}^{9} + \cdots - \zeta_{20}^{3}) q^{15} + \cdots + ( - \zeta_{20}^{6} + \cdots - \zeta_{20}^{2}) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 4 q^{3} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 4 q^{3} + 4 q^{9} - 2 q^{11} - 2 q^{17} - 2 q^{19} + 6 q^{25} + 8 q^{27} - 6 q^{33} - 2 q^{35} + 2 q^{41} + 6 q^{49} - 6 q^{51} + 4 q^{57} + 4 q^{59} - 4 q^{65} - 4 q^{67} - 2 q^{75} + 4 q^{83} - 2 q^{89} - 4 q^{91} + 2 q^{97} - 6 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2624\mathbb{Z}\right)^\times\).

\(n\) \(129\) \(575\) \(1477\)
\(\chi(n)\) \(-\zeta_{20}^{6}\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
223.1
0.587785 + 0.809017i
−0.587785 0.809017i
−0.951057 + 0.309017i
0.951057 0.309017i
−0.951057 0.309017i
0.951057 + 0.309017i
0.587785 0.809017i
−0.587785 + 0.809017i
0 1.61803 0 −0.363271 0.500000i 0 −1.53884 0.500000i 0 1.61803 0
223.2 0 1.61803 0 0.363271 + 0.500000i 0 1.53884 + 0.500000i 0 1.61803 0
543.1 0 −0.618034 0 −1.53884 + 0.500000i 0 0.363271 + 0.500000i 0 −0.618034 0
543.2 0 −0.618034 0 1.53884 0.500000i 0 −0.363271 0.500000i 0 −0.618034 0
1759.1 0 −0.618034 0 −1.53884 0.500000i 0 0.363271 0.500000i 0 −0.618034 0
1759.2 0 −0.618034 0 1.53884 + 0.500000i 0 −0.363271 + 0.500000i 0 −0.618034 0
2271.1 0 1.61803 0 −0.363271 + 0.500000i 0 −1.53884 + 0.500000i 0 1.61803 0
2271.2 0 1.61803 0 0.363271 0.500000i 0 1.53884 0.500000i 0 1.61803 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 223.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.d odd 2 1 inner
41.d even 5 1 inner
328.x odd 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2624.1.bz.b yes 8
4.b odd 2 1 2624.1.bz.a 8
8.b even 2 1 2624.1.bz.a 8
8.d odd 2 1 inner 2624.1.bz.b yes 8
41.d even 5 1 inner 2624.1.bz.b yes 8
164.j odd 10 1 2624.1.bz.a 8
328.u even 10 1 2624.1.bz.a 8
328.x odd 10 1 inner 2624.1.bz.b yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2624.1.bz.a 8 4.b odd 2 1
2624.1.bz.a 8 8.b even 2 1
2624.1.bz.a 8 164.j odd 10 1
2624.1.bz.a 8 328.u even 10 1
2624.1.bz.b yes 8 1.a even 1 1 trivial
2624.1.bz.b yes 8 8.d odd 2 1 inner
2624.1.bz.b yes 8 41.d even 5 1 inner
2624.1.bz.b yes 8 328.x odd 10 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{2} - T_{3} - 1 \) acting on \(S_{1}^{\mathrm{new}}(2624, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

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