Properties

Label 1344.2.k.d
Level $1344$
Weight $2$
Character orbit 1344.k
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(1217,1344)]
 
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([0, 0, 1, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1344.1217");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1344 = 2^{6} \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1344.k (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: \(10.7318940317\)
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: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 3 \)
Twist minimal: no (minimal twist has level 42)
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.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} + ( - \beta_{3} + \beta_1) q^{5} + (\beta_{3} + \beta_1 + 1) q^{7} + \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{3} + ( - \beta_{3} + \beta_1) q^{5} + (\beta_{3} + \beta_1 + 1) q^{7} + \beta_{2} q^{9} + ( - \beta_{3} - \beta_1) q^{13} + (\beta_{2} + 3) q^{15} + ( - 2 \beta_{3} + 2 \beta_1) q^{17} + ( - \beta_{3} - \beta_1) q^{19} + (\beta_{2} + \beta_1 - 3) q^{21} + 2 \beta_{2} q^{23} + q^{25} + 3 \beta_{3} q^{27} - 2 \beta_{2} q^{29} + ( - \beta_{3} + 2 \beta_{2} + \beta_1) q^{35} + 2 q^{37} + ( - \beta_{2} + 3) q^{39} + (2 \beta_{3} - 2 \beta_1) q^{41} + 4 q^{43} + (3 \beta_{3} + 3 \beta_1) q^{45} + (2 \beta_{3} - 2 \beta_1) q^{47} + (2 \beta_{3} + 2 \beta_1 - 5) q^{49} + (2 \beta_{2} + 6) q^{51} + 2 \beta_{2} q^{53} + ( - \beta_{2} + 3) q^{57} + (5 \beta_{3} - 5 \beta_1) q^{59} + ( - 5 \beta_{3} - 5 \beta_1) q^{61} + (3 \beta_{3} + \beta_{2} - 3 \beta_1) q^{63} - 2 \beta_{2} q^{65} + 8 q^{67} + 6 \beta_{3} q^{69} + ( - 4 \beta_{3} - 4 \beta_1) q^{73} + \beta_1 q^{75} + 10 q^{79} - 9 q^{81} + ( - \beta_{3} + \beta_1) q^{83} + 12 q^{85} - 6 \beta_{3} q^{87} + ( - \beta_{3} - \beta_1 + 6) q^{91} - 2 \beta_{2} q^{95} + ( - 2 \beta_{3} - 2 \beta_1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 4 q^{7} + 12 q^{15} - 12 q^{21} + 4 q^{25} + 8 q^{37} + 12 q^{39} + 16 q^{43} - 20 q^{49} + 24 q^{51} + 12 q^{57} + 32 q^{67} + 40 q^{79} - 36 q^{81} + 48 q^{85} + 24 q^{91}+O(q^{100}) \) 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
\(\beta_{2}\)\(=\) \( \nu^{2} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{3} ) / 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} \) 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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1217.1
−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 1.00000 2.44949i 0 3.00000i 0
1217.2 0 −1.22474 + 1.22474i 0 −2.44949 0 1.00000 + 2.44949i 0 3.00000i 0
1217.3 0 1.22474 1.22474i 0 2.44949 0 1.00000 2.44949i 0 3.00000i 0
1217.4 0 1.22474 + 1.22474i 0 2.44949 0 1.00000 + 2.44949i 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
3.b odd 2 1 inner
7.b odd 2 1 inner
21.c 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.k.d 4
3.b odd 2 1 inner 1344.2.k.d 4
4.b odd 2 1 1344.2.k.c 4
7.b odd 2 1 inner 1344.2.k.d 4
8.b even 2 1 336.2.k.b 4
8.d odd 2 1 42.2.d.a 4
12.b even 2 1 1344.2.k.c 4
21.c even 2 1 inner 1344.2.k.d 4
24.f even 2 1 42.2.d.a 4
24.h odd 2 1 336.2.k.b 4
28.d even 2 1 1344.2.k.c 4
40.e odd 2 1 1050.2.b.b 4
40.k even 4 1 1050.2.d.b 4
40.k even 4 1 1050.2.d.e 4
56.e even 2 1 42.2.d.a 4
56.h odd 2 1 336.2.k.b 4
56.k odd 6 2 294.2.f.b 8
56.m even 6 2 294.2.f.b 8
72.l even 6 2 1134.2.m.g 8
72.p odd 6 2 1134.2.m.g 8
84.h odd 2 1 1344.2.k.c 4
120.m even 2 1 1050.2.b.b 4
120.q odd 4 1 1050.2.d.b 4
120.q odd 4 1 1050.2.d.e 4
168.e odd 2 1 42.2.d.a 4
168.i even 2 1 336.2.k.b 4
168.v even 6 2 294.2.f.b 8
168.be odd 6 2 294.2.f.b 8
280.n even 2 1 1050.2.b.b 4
280.y odd 4 1 1050.2.d.b 4
280.y odd 4 1 1050.2.d.e 4
504.be even 6 2 1134.2.m.g 8
504.co odd 6 2 1134.2.m.g 8
840.b odd 2 1 1050.2.b.b 4
840.bm even 4 1 1050.2.d.b 4
840.bm even 4 1 1050.2.d.e 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
42.2.d.a 4 8.d odd 2 1
42.2.d.a 4 24.f even 2 1
42.2.d.a 4 56.e even 2 1
42.2.d.a 4 168.e odd 2 1
294.2.f.b 8 56.k odd 6 2
294.2.f.b 8 56.m even 6 2
294.2.f.b 8 168.v even 6 2
294.2.f.b 8 168.be odd 6 2
336.2.k.b 4 8.b even 2 1
336.2.k.b 4 24.h odd 2 1
336.2.k.b 4 56.h odd 2 1
336.2.k.b 4 168.i even 2 1
1050.2.b.b 4 40.e odd 2 1
1050.2.b.b 4 120.m even 2 1
1050.2.b.b 4 280.n even 2 1
1050.2.b.b 4 840.b odd 2 1
1050.2.d.b 4 40.k even 4 1
1050.2.d.b 4 120.q odd 4 1
1050.2.d.b 4 280.y odd 4 1
1050.2.d.b 4 840.bm even 4 1
1050.2.d.e 4 40.k even 4 1
1050.2.d.e 4 120.q odd 4 1
1050.2.d.e 4 280.y odd 4 1
1050.2.d.e 4 840.bm even 4 1
1134.2.m.g 8 72.l even 6 2
1134.2.m.g 8 72.p odd 6 2
1134.2.m.g 8 504.be even 6 2
1134.2.m.g 8 504.co odd 6 2
1344.2.k.c 4 4.b odd 2 1
1344.2.k.c 4 12.b even 2 1
1344.2.k.c 4 28.d even 2 1
1344.2.k.c 4 84.h odd 2 1
1344.2.k.d 4 1.a even 1 1 trivial
1344.2.k.d 4 3.b odd 2 1 inner
1344.2.k.d 4 7.b odd 2 1 inner
1344.2.k.d 4 21.c 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 \(S_{2}^{\mathrm{new}}(1344, [\chi])\):

\( T_{5}^{2} - 6 \) Copy content Toggle raw display
\( T_{43} - 4 \) 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
$7$ \( (T^{2} - 2 T + 7)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$31$ \( T^{4} \) Copy content Toggle raw display
$37$ \( (T - 2)^{4} \) Copy content Toggle raw display
$41$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$43$ \( (T - 4)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} - 150)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 150)^{2} \) Copy content Toggle raw display
$67$ \( (T - 8)^{4} \) Copy content Toggle raw display
$71$ \( T^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} + 96)^{2} \) Copy content Toggle raw display
$79$ \( (T - 10)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} - 6)^{2} \) Copy content Toggle raw display
$89$ \( T^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 24)^{2} \) Copy content Toggle raw display
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