Properties

Label 2166.2.a.a
Level $2166$
Weight $2$
Character orbit 2166.a
Self dual yes
Analytic conductor $17.296$
Analytic rank $0$
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] = [2166,2,Mod(1,2166)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2166, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("2166.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2166 = 2 \cdot 3 \cdot 19^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2166.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: \(17.2955970778\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 114)
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)
 
\(f(q)\) \(=\) \( q - q^{2} - q^{3} + q^{4} + q^{6} - 4 q^{7} - q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - q^{2} - q^{3} + q^{4} + q^{6} - 4 q^{7} - q^{8} + q^{9} - q^{12} + 4 q^{13} + 4 q^{14} + q^{16} + 6 q^{17} - q^{18} + 4 q^{21} - 6 q^{23} + q^{24} - 5 q^{25} - 4 q^{26} - q^{27} - 4 q^{28} - 6 q^{29} - 2 q^{31} - q^{32} - 6 q^{34} + q^{36} + 4 q^{37} - 4 q^{39} - 6 q^{41} - 4 q^{42} - 4 q^{43} + 6 q^{46} + 6 q^{47} - q^{48} + 9 q^{49} + 5 q^{50} - 6 q^{51} + 4 q^{52} - 6 q^{53} + q^{54} + 4 q^{56} + 6 q^{58} + 12 q^{59} + 14 q^{61} + 2 q^{62} - 4 q^{63} + q^{64} - 8 q^{67} + 6 q^{68} + 6 q^{69} - q^{72} + 14 q^{73} - 4 q^{74} + 5 q^{75} + 4 q^{78} + 10 q^{79} + q^{81} + 6 q^{82} - 12 q^{83} + 4 q^{84} + 4 q^{86} + 6 q^{87} + 6 q^{89} - 16 q^{91} - 6 q^{92} + 2 q^{93} - 6 q^{94} + q^{96} + 10 q^{97} - 9 q^{98}+O(q^{100}) \) 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
−1.00000 −1.00000 1.00000 0 1.00000 −4.00000 −1.00000 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(1\)
\(3\) \(1\)
\(19\) \(-1\)

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 2166.2.a.a 1
3.b odd 2 1 6498.2.a.t 1
19.b odd 2 1 114.2.a.c 1
57.d even 2 1 342.2.a.c 1
76.d even 2 1 912.2.a.c 1
95.d odd 2 1 2850.2.a.g 1
95.g even 4 2 2850.2.d.p 2
133.c even 2 1 5586.2.a.u 1
152.b even 2 1 3648.2.a.bc 1
152.g odd 2 1 3648.2.a.i 1
228.b odd 2 1 2736.2.a.o 1
285.b even 2 1 8550.2.a.bj 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
114.2.a.c 1 19.b odd 2 1
342.2.a.c 1 57.d even 2 1
912.2.a.c 1 76.d even 2 1
2166.2.a.a 1 1.a even 1 1 trivial
2736.2.a.o 1 228.b odd 2 1
2850.2.a.g 1 95.d odd 2 1
2850.2.d.p 2 95.g even 4 2
3648.2.a.i 1 152.g odd 2 1
3648.2.a.bc 1 152.b even 2 1
5586.2.a.u 1 133.c even 2 1
6498.2.a.t 1 3.b odd 2 1
8550.2.a.bj 1 285.b even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2166))\):

\( T_{5} \) Copy content Toggle raw display
\( T_{7} + 4 \) Copy content Toggle raw display
\( T_{13} - 4 \) Copy content Toggle raw display
\( T_{29} + 6 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T + 1 \) Copy content Toggle raw display
$3$ \( T + 1 \) Copy content Toggle raw display
$5$ \( T \) Copy content Toggle raw display
$7$ \( T + 4 \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T - 4 \) Copy content Toggle raw display
$17$ \( T - 6 \) Copy content Toggle raw display
$19$ \( T \) Copy content Toggle raw display
$23$ \( T + 6 \) Copy content Toggle raw display
$29$ \( T + 6 \) Copy content Toggle raw display
$31$ \( T + 2 \) Copy content Toggle raw display
$37$ \( T - 4 \) Copy content Toggle raw display
$41$ \( T + 6 \) Copy content Toggle raw display
$43$ \( T + 4 \) Copy content Toggle raw display
$47$ \( T - 6 \) Copy content Toggle raw display
$53$ \( T + 6 \) Copy content Toggle raw display
$59$ \( T - 12 \) Copy content Toggle raw display
$61$ \( T - 14 \) Copy content Toggle raw display
$67$ \( T + 8 \) Copy content Toggle raw display
$71$ \( T \) Copy content Toggle raw display
$73$ \( T - 14 \) Copy content Toggle raw display
$79$ \( T - 10 \) Copy content Toggle raw display
$83$ \( T + 12 \) Copy content Toggle raw display
$89$ \( T - 6 \) Copy content Toggle raw display
$97$ \( T - 10 \) Copy content Toggle raw display
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