Properties

Label 2548.2.a.i
Level $2548$
Weight $2$
Character orbit 2548.a
Self dual yes
Analytic conductor $20.346$
Analytic rank $1$
Dimension $1$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2548,2,Mod(1,2548)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2548, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2548.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2548 = 2^{2} \cdot 7^{2} \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2548.a (trivial)

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: \(20.3458824350\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 364)
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q + 2 q^{3} - q^{5} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + 2 q^{3} - q^{5} + q^{9} - 4 q^{11} - q^{13} - 2 q^{15} + 2 q^{17} + q^{19} - 7 q^{23} - 4 q^{25} - 4 q^{27} - 5 q^{29} + 9 q^{31} - 8 q^{33} - 2 q^{37} - 2 q^{39} - 2 q^{41} + q^{43} - q^{45} - 9 q^{47} + 4 q^{51} + 3 q^{53} + 4 q^{55} + 2 q^{57} - 14 q^{61} + q^{65} + 10 q^{67} - 14 q^{69} - 14 q^{71} - 3 q^{73} - 8 q^{75} + 5 q^{79} - 11 q^{81} - 5 q^{83} - 2 q^{85} - 10 q^{87} + 9 q^{89} + 18 q^{93} - q^{95} + q^{97} - 4 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
0
0 2.00000 0 −1.00000 0 0 0 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(7\) \( -1 \)
\(13\) \( +1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2548.2.a.i 1
7.b odd 2 1 364.2.a.a 1
7.c even 3 2 2548.2.j.c 2
7.d odd 6 2 2548.2.j.j 2
21.c even 2 1 3276.2.a.b 1
28.d even 2 1 1456.2.a.m 1
35.c odd 2 1 9100.2.a.l 1
56.e even 2 1 5824.2.a.d 1
56.h odd 2 1 5824.2.a.bb 1
91.b odd 2 1 4732.2.a.a 1
91.i even 4 2 4732.2.g.a 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
364.2.a.a 1 7.b odd 2 1
1456.2.a.m 1 28.d even 2 1
2548.2.a.i 1 1.a even 1 1 trivial
2548.2.j.c 2 7.c even 3 2
2548.2.j.j 2 7.d odd 6 2
3276.2.a.b 1 21.c even 2 1
4732.2.a.a 1 91.b odd 2 1
4732.2.g.a 2 91.i even 4 2
5824.2.a.d 1 56.e even 2 1
5824.2.a.bb 1 56.h odd 2 1
9100.2.a.l 1 35.c odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2548))\):

\( T_{3} - 2 \) Copy content Toggle raw display
\( T_{5} + 1 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T - 2 \) Copy content Toggle raw display
$5$ \( T + 1 \) Copy content Toggle raw display
$7$ \( T \) Copy content Toggle raw display
$11$ \( T + 4 \) Copy content Toggle raw display
$13$ \( T + 1 \) Copy content Toggle raw display
$17$ \( T - 2 \) Copy content Toggle raw display
$19$ \( T - 1 \) Copy content Toggle raw display
$23$ \( T + 7 \) Copy content Toggle raw display
$29$ \( T + 5 \) Copy content Toggle raw display
$31$ \( T - 9 \) Copy content Toggle raw display
$37$ \( T + 2 \) Copy content Toggle raw display
$41$ \( T + 2 \) Copy content Toggle raw display
$43$ \( T - 1 \) Copy content Toggle raw display
$47$ \( T + 9 \) Copy content Toggle raw display
$53$ \( T - 3 \) Copy content Toggle raw display
$59$ \( T \) Copy content Toggle raw display
$61$ \( T + 14 \) Copy content Toggle raw display
$67$ \( T - 10 \) Copy content Toggle raw display
$71$ \( T + 14 \) Copy content Toggle raw display
$73$ \( T + 3 \) Copy content Toggle raw display
$79$ \( T - 5 \) Copy content Toggle raw display
$83$ \( T + 5 \) Copy content Toggle raw display
$89$ \( T - 9 \) Copy content Toggle raw display
$97$ \( T - 1 \) Copy content Toggle raw display
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