Properties

Label 1344.2.j.c
Level $1344$
Weight $2$
Character orbit 1344.j
Analytic conductor $10.732$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1344,2,Mod(1247,1344)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1344, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1344.1247");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1344 = 2^{6} \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1344.j (of order \(2\), degree \(1\), 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: \(10.7318940317\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{6})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 9 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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.

\(f(q)\) \(=\) \( q - \beta_1 q^{3} + ( - \beta_{3} + \beta_1) q^{5} - \beta_{2} q^{7} + 3 \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_1 q^{3} + ( - \beta_{3} + \beta_1) q^{5} - \beta_{2} q^{7} + 3 \beta_{2} q^{9} + (\beta_{3} + \beta_1) q^{13} + ( - 3 \beta_{2} - 3) q^{15} + 6 \beta_{2} q^{17} + ( - 3 \beta_{3} + 3 \beta_1) q^{19} + \beta_{3} q^{21} + q^{25} - 3 \beta_{3} q^{27} + ( - 2 \beta_{3} + 2 \beta_1) q^{29} + 8 \beta_{2} q^{31} + ( - \beta_{3} - \beta_1) q^{35} + (2 \beta_{3} + 2 \beta_1) q^{37} + ( - 3 \beta_{2} + 3) q^{39} - 6 \beta_{2} q^{41} + (2 \beta_{3} - 2 \beta_1) q^{43} + (3 \beta_{3} + 3 \beta_1) q^{45} - 12 q^{47} - q^{49} - 6 \beta_{3} q^{51} + ( - 4 \beta_{3} + 4 \beta_1) q^{53} + ( - 9 \beta_{2} - 9) q^{57} + ( - \beta_{3} - \beta_1) q^{59} + ( - \beta_{3} - \beta_1) q^{61} + 3 q^{63} + 6 \beta_{2} q^{65} + ( - 4 \beta_{3} + 4 \beta_1) q^{67} + 6 q^{71} + 10 q^{73} - \beta_1 q^{75} + 8 \beta_{2} q^{79} - 9 q^{81} + ( - 3 \beta_{3} - 3 \beta_1) q^{83} + (6 \beta_{3} + 6 \beta_1) q^{85} + ( - 6 \beta_{2} - 6) q^{87} - 18 \beta_{2} q^{89} + ( - \beta_{3} + \beta_1) q^{91} - 8 \beta_{3} q^{93} + 18 q^{95} + 2 q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q+O(q^{10}) \) Copy content Toggle raw display \( 4 q - 12 q^{15} + 4 q^{25} + 12 q^{39} - 48 q^{47} - 4 q^{49} - 36 q^{57} + 12 q^{63} + 24 q^{71} + 40 q^{73} - 36 q^{81} - 24 q^{87} + 72 q^{95} + 8 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 9 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{3} ) / 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 3\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 3\beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1344\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(449\) \(577\) \(1093\)
\(\chi(n)\) \(-1\) \(-1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1247.1
1.22474 + 1.22474i
1.22474 1.22474i
−1.22474 + 1.22474i
−1.22474 1.22474i
0 −1.22474 1.22474i 0 2.44949 0 1.00000i 0 3.00000i 0
1247.2 0 −1.22474 + 1.22474i 0 2.44949 0 1.00000i 0 3.00000i 0
1247.3 0 1.22474 1.22474i 0 −2.44949 0 1.00000i 0 3.00000i 0
1247.4 0 1.22474 + 1.22474i 0 −2.44949 0 1.00000i 0 3.00000i 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
8.b even 2 1 inner
12.b even 2 1 inner
24.f even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1344.2.j.c 4
3.b odd 2 1 1344.2.j.d yes 4
4.b odd 2 1 1344.2.j.d yes 4
8.b even 2 1 inner 1344.2.j.c 4
8.d odd 2 1 1344.2.j.d yes 4
12.b even 2 1 inner 1344.2.j.c 4
24.f even 2 1 inner 1344.2.j.c 4
24.h odd 2 1 1344.2.j.d yes 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1344.2.j.c 4 1.a even 1 1 trivial
1344.2.j.c 4 8.b even 2 1 inner
1344.2.j.c 4 12.b even 2 1 inner
1344.2.j.c 4 24.f even 2 1 inner
1344.2.j.d yes 4 3.b odd 2 1
1344.2.j.d yes 4 4.b odd 2 1
1344.2.j.d yes 4 8.d odd 2 1
1344.2.j.d yes 4 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1344, [\chi])\):

\( T_{5}^{2} - 6 \) Copy content Toggle raw display
\( T_{19}^{2} - 54 \) Copy content Toggle raw display
\( T_{23} \) Copy content Toggle raw display
\( T_{47} + 12 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} + 9 \) Copy content Toggle raw display
$5$ \( (T^{2} - 6)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} - 54)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} \) Copy content Toggle raw display
$29$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 64)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} + 24)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$47$ \( (T + 12)^{4} \) Copy content Toggle raw display
$53$ \( (T^{2} - 96)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} - 96)^{2} \) Copy content Toggle raw display
$71$ \( (T - 6)^{4} \) Copy content Toggle raw display
$73$ \( (T - 10)^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} + 64)^{2} \) Copy content Toggle raw display
$83$ \( (T^{2} + 54)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 324)^{2} \) Copy content Toggle raw display
$97$ \( (T - 2)^{4} \) Copy content Toggle raw display
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