Properties

Label 1872.4.a.g
Level $1872$
Weight $4$
Character orbit 1872.a
Self dual yes
Analytic conductor $110.452$
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] = [1872,4,Mod(1,1872)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1872, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1872.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1872 = 2^{4} \cdot 3^{2} \cdot 13 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1872.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: \(110.451575531\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 234)
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)
 
\(f(q)\) \(=\) \( q - 2 q^{5} + 26 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - 2 q^{5} + 26 q^{7} + 52 q^{11} - 13 q^{13} - 48 q^{17} - 18 q^{19} - 52 q^{23} - 121 q^{25} - 224 q^{29} - 310 q^{31} - 52 q^{35} - 18 q^{37} - 330 q^{41} - 328 q^{43} + 616 q^{47} + 333 q^{49} + 324 q^{53} - 104 q^{55} + 188 q^{59} - 110 q^{61} + 26 q^{65} - 118 q^{67} - 656 q^{71} - 178 q^{73} + 1352 q^{77} - 836 q^{79} + 60 q^{83} + 96 q^{85} - 870 q^{89} - 338 q^{91} + 36 q^{95} + 1238 q^{97}+O(q^{100}) \) 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 0 0 −2.00000 0 26.0000 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( +1 \)
\(13\) \( +1 \)

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 1872.4.a.g 1
3.b odd 2 1 1872.4.a.h 1
4.b odd 2 1 234.4.a.i yes 1
12.b even 2 1 234.4.a.d 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
234.4.a.d 1 12.b even 2 1
234.4.a.i yes 1 4.b odd 2 1
1872.4.a.g 1 1.a even 1 1 trivial
1872.4.a.h 1 3.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1872))\):

\( T_{5} + 2 \) Copy content Toggle raw display
\( T_{7} - 26 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T + 2 \) Copy content Toggle raw display
$7$ \( T - 26 \) Copy content Toggle raw display
$11$ \( T - 52 \) Copy content Toggle raw display
$13$ \( T + 13 \) Copy content Toggle raw display
$17$ \( T + 48 \) Copy content Toggle raw display
$19$ \( T + 18 \) Copy content Toggle raw display
$23$ \( T + 52 \) Copy content Toggle raw display
$29$ \( T + 224 \) Copy content Toggle raw display
$31$ \( T + 310 \) Copy content Toggle raw display
$37$ \( T + 18 \) Copy content Toggle raw display
$41$ \( T + 330 \) Copy content Toggle raw display
$43$ \( T + 328 \) Copy content Toggle raw display
$47$ \( T - 616 \) Copy content Toggle raw display
$53$ \( T - 324 \) Copy content Toggle raw display
$59$ \( T - 188 \) Copy content Toggle raw display
$61$ \( T + 110 \) Copy content Toggle raw display
$67$ \( T + 118 \) Copy content Toggle raw display
$71$ \( T + 656 \) Copy content Toggle raw display
$73$ \( T + 178 \) Copy content Toggle raw display
$79$ \( T + 836 \) Copy content Toggle raw display
$83$ \( T - 60 \) Copy content Toggle raw display
$89$ \( T + 870 \) Copy content Toggle raw display
$97$ \( T - 1238 \) Copy content Toggle raw display
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