Properties

Label 628.1.o.a
Level $628$
Weight $1$
Character orbit 628.o
Analytic conductor $0.313$
Analytic rank $0$
Dimension $12$
Projective image $D_{13}$
CM discriminant -4
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [628,1,Mod(39,628)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(628, base_ring=CyclotomicField(26))
 
chi = DirichletCharacter(H, H._module([13, 18]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("628.39");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 628 = 2^{2} \cdot 157 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 628.o (of order \(26\), degree \(12\), 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: \(0.313412827934\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: \(\Q(\zeta_{26})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - x^{11} + x^{10} - x^{9} + x^{8} - x^{7} + x^{6} - x^{5} + x^{4} - x^{3} + x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{13}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{13} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q - \zeta_{26}^{5} q^{2} + \zeta_{26}^{10} q^{4} + ( - \zeta_{26}^{11} + \zeta_{26}^{10}) q^{5} + \zeta_{26}^{2} q^{8} + \zeta_{26}^{6} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{26}^{5} q^{2} + \zeta_{26}^{10} q^{4} + ( - \zeta_{26}^{11} + \zeta_{26}^{10}) q^{5} + \zeta_{26}^{2} q^{8} + \zeta_{26}^{6} q^{9} + ( - \zeta_{26}^{3} + \zeta_{26}^{2}) q^{10} + ( - \zeta_{26}^{9} + \zeta_{26}^{4}) q^{13} - \zeta_{26}^{7} q^{16} + ( - \zeta_{26}^{11} + \zeta_{26}^{10}) q^{17} - \zeta_{26}^{11} q^{18} + (\zeta_{26}^{8} - \zeta_{26}^{7}) q^{20} + ( - \zeta_{26}^{9} + \cdots - \zeta_{26}^{7}) q^{25} + \cdots - \zeta_{26}^{11} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - q^{2} - q^{4} - 2 q^{5} - q^{8} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - q^{2} - q^{4} - 2 q^{5} - q^{8} - q^{9} - 2 q^{10} - 2 q^{13} - q^{16} - 2 q^{17} - q^{18} - 2 q^{20} - 3 q^{25} - 2 q^{26} - 2 q^{29} - q^{32} - 2 q^{34} - q^{36} + 11 q^{37} + 11 q^{40} + 11 q^{41} - 2 q^{45} - q^{49} + 10 q^{50} - 2 q^{52} - 2 q^{53} - 2 q^{58} - 2 q^{61} - q^{64} - 4 q^{65} - 2 q^{68} - q^{72} - 2 q^{73} - 2 q^{74} - 2 q^{80} - q^{81} - 2 q^{82} - 4 q^{85} - 2 q^{89} - 2 q^{90} - 2 q^{97} - q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/628\mathbb{Z}\right)^\times\).

\(n\) \(5\) \(315\)
\(\chi(n)\) \(\zeta_{26}^{8}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
39.1
0.970942 0.239316i
0.354605 0.935016i
0.354605 + 0.935016i
−0.568065 0.822984i
−0.120537 0.992709i
−0.568065 + 0.822984i
0.748511 0.663123i
0.748511 + 0.663123i
−0.120537 + 0.992709i
0.970942 + 0.239316i
−0.885456 0.464723i
−0.885456 + 0.464723i
−0.354605 + 0.935016i 0 −0.748511 0.663123i 0.136945 0.198399i 0 0 0.885456 0.464723i 0.120537 0.992709i 0.136945 + 0.198399i
67.1 −0.970942 0.239316i 0 0.885456 + 0.464723i 0.136945 + 1.12785i 0 0 −0.748511 0.663123i 0.568065 0.822984i 0.136945 1.12785i
75.1 −0.970942 + 0.239316i 0 0.885456 0.464723i 0.136945 1.12785i 0 0 −0.748511 + 0.663123i 0.568065 + 0.822984i 0.136945 + 1.12785i
99.1 0.120537 0.992709i 0 −0.970942 0.239316i −1.32555 1.17433i 0 0 −0.354605 + 0.935016i 0.885456 0.464723i −1.32555 + 1.17433i
171.1 0.568065 + 0.822984i 0 −0.354605 + 0.935016i −1.32555 + 0.695701i 0 0 −0.970942 + 0.239316i −0.748511 + 0.663123i −1.32555 0.695701i
203.1 0.120537 + 0.992709i 0 −0.970942 + 0.239316i −1.32555 + 1.17433i 0 0 −0.354605 0.935016i 0.885456 + 0.464723i −1.32555 1.17433i
287.1 0.885456 0.464723i 0 0.568065 0.822984i 0.688601 + 0.169725i 0 0 0.120537 0.992709i −0.354605 + 0.935016i 0.688601 0.169725i
407.1 0.885456 + 0.464723i 0 0.568065 + 0.822984i 0.688601 0.169725i 0 0 0.120537 + 0.992709i −0.354605 0.935016i 0.688601 + 0.169725i
415.1 0.568065 0.822984i 0 −0.354605 0.935016i −1.32555 0.695701i 0 0 −0.970942 0.239316i −0.748511 0.663123i −1.32555 + 0.695701i
467.1 −0.354605 0.935016i 0 −0.748511 + 0.663123i 0.136945 + 0.198399i 0 0 0.885456 + 0.464723i 0.120537 + 0.992709i 0.136945 0.198399i
487.1 −0.748511 + 0.663123i 0 0.120537 0.992709i 0.688601 1.81569i 0 0 0.568065 + 0.822984i −0.970942 + 0.239316i 0.688601 + 1.81569i
579.1 −0.748511 0.663123i 0 0.120537 + 0.992709i 0.688601 + 1.81569i 0 0 0.568065 0.822984i −0.970942 0.239316i 0.688601 1.81569i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 39.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
157.g even 13 1 inner
628.o odd 26 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 628.1.o.a 12
4.b odd 2 1 CM 628.1.o.a 12
157.g even 13 1 inner 628.1.o.a 12
628.o odd 26 1 inner 628.1.o.a 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
628.1.o.a 12 1.a even 1 1 trivial
628.1.o.a 12 4.b odd 2 1 CM
628.1.o.a 12 157.g even 13 1 inner
628.1.o.a 12 628.o odd 26 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(628, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} + T^{11} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{12} \) Copy content Toggle raw display
$5$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{12} \) Copy content Toggle raw display
$11$ \( T^{12} \) Copy content Toggle raw display
$13$ \( (T^{6} + T^{5} - 5 T^{4} + \cdots - 1)^{2} \) Copy content Toggle raw display
$17$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{12} \) Copy content Toggle raw display
$23$ \( T^{12} \) Copy content Toggle raw display
$29$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{12} \) Copy content Toggle raw display
$37$ \( T^{12} - 11 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$41$ \( T^{12} - 11 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( T^{12} \) Copy content Toggle raw display
$47$ \( T^{12} \) Copy content Toggle raw display
$53$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$59$ \( T^{12} \) Copy content Toggle raw display
$61$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{12} \) Copy content Toggle raw display
$71$ \( T^{12} \) Copy content Toggle raw display
$73$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$79$ \( T^{12} \) Copy content Toggle raw display
$83$ \( T^{12} \) Copy content Toggle raw display
$89$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
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