Properties

Label 2016.3.l.e
Level $2016$
Weight $3$
Character orbit 2016.l
Analytic conductor $54.932$
Analytic rank $0$
Dimension $4$
CM discriminant -7
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2016,3,Mod(433,2016)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2016, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2016.433");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2016 = 2^{5} \cdot 3^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 2016.l (of order \(2\), degree \(1\), not 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: \(54.9320212950\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{7})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 3x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{37}]\)
Coefficient ring index: \( 2^{10}\cdot 3^{2} \)
Twist minimal: no (minimal twist has level 504)
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 7 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + 7 q^{7} + \beta_1 q^{11} - \beta_{2} q^{23} - 25 q^{25} + 9 \beta_1 q^{29} - \beta_{3} q^{37} + \beta_{3} q^{43} + 49 q^{49} + \beta_1 q^{53} + \beta_{3} q^{67} - 2 \beta_{2} q^{71} + 7 \beta_1 q^{77} - 94 q^{79}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 28 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 28 q^{7} - 100 q^{25} + 196 q^{49} - 376 q^{79}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - 3x^{2} + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( -3\nu^{3} + 3\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( -8\nu^{3} + 40\nu \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 48\nu^{2} - 72 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 3\beta_{2} - 8\beta_1 ) / 96 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} + 72 ) / 48 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 3\beta_{2} - 40\beta_1 ) / 96 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2016\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(577\) \(1765\) \(1793\)
\(\chi(n)\) \(1\) \(-1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
433.1
1.32288 + 0.500000i
−1.32288 + 0.500000i
1.32288 0.500000i
−1.32288 0.500000i
0 0 0 0 0 7.00000 0 0 0
433.2 0 0 0 0 0 7.00000 0 0 0
433.3 0 0 0 0 0 7.00000 0 0 0
433.4 0 0 0 0 0 7.00000 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 CM by \(\Q(\sqrt{-7}) \)
3.b odd 2 1 inner
8.b even 2 1 inner
21.c even 2 1 inner
24.h odd 2 1 inner
56.h odd 2 1 inner
168.i even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2016.3.l.e 4
3.b odd 2 1 inner 2016.3.l.e 4
4.b odd 2 1 504.3.l.e 4
7.b odd 2 1 CM 2016.3.l.e 4
8.b even 2 1 inner 2016.3.l.e 4
8.d odd 2 1 504.3.l.e 4
12.b even 2 1 504.3.l.e 4
21.c even 2 1 inner 2016.3.l.e 4
24.f even 2 1 504.3.l.e 4
24.h odd 2 1 inner 2016.3.l.e 4
28.d even 2 1 504.3.l.e 4
56.e even 2 1 504.3.l.e 4
56.h odd 2 1 inner 2016.3.l.e 4
84.h odd 2 1 504.3.l.e 4
168.e odd 2 1 504.3.l.e 4
168.i even 2 1 inner 2016.3.l.e 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
504.3.l.e 4 4.b odd 2 1
504.3.l.e 4 8.d odd 2 1
504.3.l.e 4 12.b even 2 1
504.3.l.e 4 24.f even 2 1
504.3.l.e 4 28.d even 2 1
504.3.l.e 4 56.e even 2 1
504.3.l.e 4 84.h odd 2 1
504.3.l.e 4 168.e odd 2 1
2016.3.l.e 4 1.a even 1 1 trivial
2016.3.l.e 4 3.b odd 2 1 inner
2016.3.l.e 4 7.b odd 2 1 CM
2016.3.l.e 4 8.b even 2 1 inner
2016.3.l.e 4 21.c even 2 1 inner
2016.3.l.e 4 24.h odd 2 1 inner
2016.3.l.e 4 56.h odd 2 1 inner
2016.3.l.e 4 168.i even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(2016, [\chi])\):

\( T_{5} \) Copy content Toggle raw display
\( T_{11}^{2} + 36 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( (T - 7)^{4} \) Copy content Toggle raw display
$11$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} \) Copy content Toggle raw display
$17$ \( T^{4} \) Copy content Toggle raw display
$19$ \( T^{4} \) Copy content Toggle raw display
$23$ \( (T^{2} - 1792)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} + 2916)^{2} \) Copy content Toggle raw display
$31$ \( T^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4032)^{2} \) Copy content Toggle raw display
$41$ \( T^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} + 4032)^{2} \) Copy content Toggle raw display
$47$ \( T^{4} \) Copy content Toggle raw display
$53$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} \) Copy content Toggle raw display
$61$ \( T^{4} \) Copy content Toggle raw display
$67$ \( (T^{2} + 4032)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} - 7168)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} \) Copy content Toggle raw display
$79$ \( (T + 94)^{4} \) Copy content Toggle raw display
$83$ \( T^{4} \) Copy content Toggle raw display
$89$ \( T^{4} \) Copy content Toggle raw display
$97$ \( T^{4} \) Copy content Toggle raw display
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