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Properties

Label 548.1.j.a
Level $548$
Weight $1$
Character orbit 548.j
Analytic conductor $0.273$
Analytic rank $0$
Dimension $16$
Projective image $D_{34}$
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] = [548,1,Mod(15,548)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(548, base_ring=CyclotomicField(34))
 
chi = DirichletCharacter(H, H._module([17, 19]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("548.15");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 548 = 2^{2} \cdot 137 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 548.j (of order \(34\), degree \(16\), 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: \(0.273487626923\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: \(\Q(\zeta_{34})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - x^{15} + x^{14} - x^{13} + x^{12} - x^{11} + x^{10} - x^{9} + x^{8} - x^{7} + x^{6} - x^{5} + \cdots + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{34}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{34} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q + \zeta_{34}^{10} q^{2} - \zeta_{34}^{3} q^{4} + (\zeta_{34}^{13} - \zeta_{34}) q^{5} - \zeta_{34}^{13} q^{8} - \zeta_{34}^{2} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{34}^{10} q^{2} - \zeta_{34}^{3} q^{4} + (\zeta_{34}^{13} - \zeta_{34}) q^{5} - \zeta_{34}^{13} q^{8} - \zeta_{34}^{2} q^{9} + ( - \zeta_{34}^{11} - \zeta_{34}^{6}) q^{10} + (\zeta_{34}^{11} - \zeta_{34}^{5}) q^{13} + \zeta_{34}^{6} q^{16} + ( - \zeta_{34}^{8} - 1) q^{17} - \zeta_{34}^{12} q^{18} + ( - \zeta_{34}^{16} + \zeta_{34}^{4}) q^{20} + ( - \zeta_{34}^{14} + \cdots + \zeta_{34}^{2}) q^{25} + \cdots - \zeta_{34}^{9} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - q^{2} - q^{4} - q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - q^{2} - q^{4} - q^{8} + q^{9} - q^{16} - 15 q^{17} + q^{18} - q^{25} - q^{32} + 2 q^{34} + q^{36} + 2 q^{37} - q^{49} - q^{50} + 2 q^{61} - q^{64} + 2 q^{68} + q^{72} - 2 q^{73} - 15 q^{74} - q^{81} - q^{98}+O(q^{100}) \) Copy content Toggle raw display

Display 100 coefficients 10 coefficients

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/548\mathbb{Z}\right)^\times\).

\(n\) \(275\) \(277\)
\(\chi(n)\) \(-1\) \(-\zeta_{34}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
15.1
0.982973 + 0.183750i
0.850217 − 0.526432i
0.850217 + 0.526432i
0.273663 + 0.961826i
−0.445738 − 0.895163i
−0.932472 + 0.361242i
0.273663 − 0.961826i
−0.0922684 − 0.995734i
−0.739009 + 0.673696i
−0.932472 − 0.361242i
−0.739009 − 0.673696i
0.602635 − 0.798017i
−0.0922684 + 0.995734i
0.602635 + 0.798017i
−0.445738 + 0.895163i
0.982973 − 0.183750i
−0.273663 + 0.961826i 0 −0.850217 − 0.526432i −1.72198 + 0.489946i 0 0 0.739009 − 0.673696i −0.932472 − 0.361242i − 1.79033i
63.1 0.739009 + 0.673696i 0 0.0922684 + 0.995734i −0.247582 − 0.271585i 0 0 −0.602635 + 0.798017i −0.445738 + 0.895163i − 0.367499i
87.1 0.739009 − 0.673696i 0 0.0922684 − 0.995734i −0.247582 + 0.271585i 0 0 −0.602635 − 0.798017i −0.445738 − 0.895163i 0.367499i
99.1 0.932472 + 0.361242i 0 0.739009 + 0.673696i −0.719401 − 1.85699i 0 0 0.445738 + 0.895163i 0.850217 − 0.526432i − 1.99147i
103.1 0.0922684 − 0.995734i 0 −0.982973 − 0.183750i 0.719401 − 0.0666624i 0 0 −0.273663 + 0.961826i 0.602635 − 0.798017i − 0.722483i
151.1 −0.850217 + 0.526432i 0 0.445738 − 0.895163i 0.840204 − 1.35698i 0 0 0.0922684 + 0.995734i −0.739009 + 0.673696i 1.59603i
155.1 0.932472 − 0.361242i 0 0.739009 − 0.673696i −0.719401 + 1.85699i 0 0 0.445738 − 0.895163i 0.850217 + 0.526432i 1.99147i
159.1 −0.602635 + 0.798017i 0 −0.273663 − 0.961826i −0.840204 + 0.634493i 0 0 0.932472 + 0.361242i 0.982973 − 0.183750i − 1.05286i
215.1 0.445738 − 0.895163i 0 −0.602635 − 0.798017i 1.72198 − 0.857445i 0 0 −0.982973 + 0.183750i −0.0922684 + 0.995734i − 1.92365i
323.1 −0.850217 − 0.526432i 0 0.445738 + 0.895163i 0.840204 + 1.35698i 0 0 0.0922684 − 0.995734i −0.739009 − 0.673696i − 1.59603i
339.1 0.445738 + 0.895163i 0 −0.602635 + 0.798017i 1.72198 + 0.857445i 0 0 −0.982973 − 0.183750i −0.0922684 − 0.995734i 1.92365i
351.1 −0.982973 − 0.183750i 0 0.932472 + 0.361242i 0.247582 + 1.32445i 0 0 −0.850217 − 0.526432i 0.273663 + 0.961826i − 1.34739i
355.1 −0.602635 − 0.798017i 0 −0.273663 + 0.961826i −0.840204 − 0.634493i 0 0 0.932472 − 0.361242i 0.982973 + 0.183750i 1.05286i
395.1 −0.982973 + 0.183750i 0 0.932472 − 0.361242i 0.247582 − 1.32445i 0 0 −0.850217 + 0.526432i 0.273663 − 0.961826i 1.34739i
415.1 0.0922684 + 0.995734i 0 −0.982973 + 0.183750i 0.719401 + 0.0666624i 0 0 −0.273663 − 0.961826i 0.602635 + 0.798017i 0.722483i
475.1 −0.273663 − 0.961826i 0 −0.850217 + 0.526432i −1.72198 − 0.489946i 0 0 0.739009 + 0.673696i −0.932472 + 0.361242i 1.79033i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 15.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
137.f even 34 1 inner
548.j odd 34 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 548.1.j.a ✓ 16
4.b odd 2 1 CM 548.1.j.a ✓ 16
137.f even 34 1 inner 548.1.j.a ✓ 16
548.j odd 34 1 inner 548.1.j.a ✓ 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
548.1.j.a ✓ 16 1.a even 1 1 trivial
548.1.j.a ✓ 16 4.b odd 2 1 CM
548.1.j.a ✓ 16 137.f even 34 1 inner
548.1.j.a ✓ 16 548.j odd 34 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(548, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} + T^{15} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( T^{16} + 17 T^{11} + \cdots + 17 \) Copy content Toggle raw display
$7$ \( T^{16} \) Copy content Toggle raw display
$11$ \( T^{16} \) Copy content Toggle raw display
$13$ \( T^{16} + 17 T^{7} + \cdots + 17 \) Copy content Toggle raw display
$17$ \( T^{16} + 15 T^{15} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{16} \) Copy content Toggle raw display
$23$ \( T^{16} \) Copy content Toggle raw display
$29$ \( T^{16} + 17 T^{10} + \cdots + 17 \) Copy content Toggle raw display
$31$ \( T^{16} \) Copy content Toggle raw display
$37$ \( (T^{8} - T^{7} - 7 T^{6} + \cdots + 1)^{2} \) Copy content Toggle raw display
$41$ \( T^{16} + 17 T^{14} + \cdots + 17 \) Copy content Toggle raw display
$43$ \( T^{16} \) Copy content Toggle raw display
$47$ \( T^{16} \) Copy content Toggle raw display
$53$ \( T^{16} - 17 T^{7} + \cdots + 17 \) Copy content Toggle raw display
$59$ \( T^{16} \) Copy content Toggle raw display
$61$ \( T^{16} - 2 T^{15} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{16} \) Copy content Toggle raw display
$71$ \( T^{16} \) Copy content Toggle raw display
$73$ \( T^{16} + 2 T^{15} + \cdots + 1 \) Copy content Toggle raw display
$79$ \( T^{16} \) Copy content Toggle raw display
$83$ \( T^{16} \) Copy content Toggle raw display
$89$ \( T^{16} + 34 T^{11} + \cdots + 17 \) Copy content Toggle raw display
$97$ \( T^{16} \) Copy content Toggle raw display
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