Properties

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

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1344,2,Mod(895,1344)]
 
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, 0, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1344.895");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1344 = 2^{6} \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1344.b (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: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 336)
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 \(\beta = \sqrt{-3}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{3} + (\beta - 2) q^{7} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{3} + (\beta - 2) q^{7} + q^{9} - 2 \beta q^{11} + 4 \beta q^{17} + 4 q^{19} + (\beta - 2) q^{21} + 2 \beta q^{23} + 5 q^{25} + q^{27} + 6 q^{29} + 4 q^{31} - 2 \beta q^{33} + 2 q^{37} + 4 \beta q^{41} + 2 \beta q^{43} + ( - 4 \beta + 1) q^{49} + 4 \beta q^{51} + 6 q^{53} + 4 q^{57} - 12 q^{59} + 8 \beta q^{61} + (\beta - 2) q^{63} + 2 \beta q^{67} + 2 \beta q^{69} - 6 \beta q^{71} + 8 \beta q^{73} + 5 q^{75} + (4 \beta + 6) q^{77} - 6 \beta q^{79} + q^{81} - 12 q^{83} + 6 q^{87} - 4 \beta q^{89} + 4 q^{93} - 2 \beta q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{3} - 4 q^{7} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 2 q^{3} - 4 q^{7} + 2 q^{9} + 8 q^{19} - 4 q^{21} + 10 q^{25} + 2 q^{27} + 12 q^{29} + 8 q^{31} + 4 q^{37} + 2 q^{49} + 12 q^{53} + 8 q^{57} - 24 q^{59} - 4 q^{63} + 10 q^{75} + 12 q^{77} + 2 q^{81} - 24 q^{83} + 12 q^{87} + 8 q^{93}+O(q^{100}) \) 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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
895.1
0.500000 0.866025i
0.500000 + 0.866025i
0 1.00000 0 0 0 −2.00000 1.73205i 0 1.00000 0
895.2 0 1.00000 0 0 0 −2.00000 + 1.73205i 0 1.00000 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
28.d 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.b.c 2
3.b odd 2 1 4032.2.b.c 2
4.b odd 2 1 1344.2.b.b 2
7.b odd 2 1 1344.2.b.b 2
8.b even 2 1 336.2.b.a 2
8.d odd 2 1 336.2.b.d yes 2
12.b even 2 1 4032.2.b.g 2
21.c even 2 1 4032.2.b.g 2
24.f even 2 1 1008.2.b.h 2
24.h odd 2 1 1008.2.b.a 2
28.d even 2 1 inner 1344.2.b.c 2
56.e even 2 1 336.2.b.a 2
56.h odd 2 1 336.2.b.d yes 2
56.j odd 6 1 2352.2.bl.c 2
56.j odd 6 1 2352.2.bl.d 2
56.k odd 6 1 2352.2.bl.c 2
56.k odd 6 1 2352.2.bl.d 2
56.m even 6 1 2352.2.bl.i 2
56.m even 6 1 2352.2.bl.j 2
56.p even 6 1 2352.2.bl.i 2
56.p even 6 1 2352.2.bl.j 2
84.h odd 2 1 4032.2.b.c 2
168.e odd 2 1 1008.2.b.a 2
168.i even 2 1 1008.2.b.h 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
336.2.b.a 2 8.b even 2 1
336.2.b.a 2 56.e even 2 1
336.2.b.d yes 2 8.d odd 2 1
336.2.b.d yes 2 56.h odd 2 1
1008.2.b.a 2 24.h odd 2 1
1008.2.b.a 2 168.e odd 2 1
1008.2.b.h 2 24.f even 2 1
1008.2.b.h 2 168.i even 2 1
1344.2.b.b 2 4.b odd 2 1
1344.2.b.b 2 7.b odd 2 1
1344.2.b.c 2 1.a even 1 1 trivial
1344.2.b.c 2 28.d even 2 1 inner
2352.2.bl.c 2 56.j odd 6 1
2352.2.bl.c 2 56.k odd 6 1
2352.2.bl.d 2 56.j odd 6 1
2352.2.bl.d 2 56.k odd 6 1
2352.2.bl.i 2 56.m even 6 1
2352.2.bl.i 2 56.p even 6 1
2352.2.bl.j 2 56.m even 6 1
2352.2.bl.j 2 56.p even 6 1
4032.2.b.c 2 3.b odd 2 1
4032.2.b.c 2 84.h odd 2 1
4032.2.b.g 2 12.b even 2 1
4032.2.b.g 2 21.c even 2 1

Hecke kernels

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

\( T_{5} \) Copy content Toggle raw display
\( T_{19} - 4 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( (T - 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 4T + 7 \) Copy content Toggle raw display
$11$ \( T^{2} + 12 \) Copy content Toggle raw display
$13$ \( T^{2} \) Copy content Toggle raw display
$17$ \( T^{2} + 48 \) Copy content Toggle raw display
$19$ \( (T - 4)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} + 12 \) Copy content Toggle raw display
$29$ \( (T - 6)^{2} \) Copy content Toggle raw display
$31$ \( (T - 4)^{2} \) Copy content Toggle raw display
$37$ \( (T - 2)^{2} \) Copy content Toggle raw display
$41$ \( T^{2} + 48 \) Copy content Toggle raw display
$43$ \( T^{2} + 12 \) Copy content Toggle raw display
$47$ \( T^{2} \) Copy content Toggle raw display
$53$ \( (T - 6)^{2} \) Copy content Toggle raw display
$59$ \( (T + 12)^{2} \) Copy content Toggle raw display
$61$ \( T^{2} + 192 \) Copy content Toggle raw display
$67$ \( T^{2} + 12 \) Copy content Toggle raw display
$71$ \( T^{2} + 108 \) Copy content Toggle raw display
$73$ \( T^{2} + 192 \) Copy content Toggle raw display
$79$ \( T^{2} + 108 \) Copy content Toggle raw display
$83$ \( (T + 12)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} + 48 \) Copy content Toggle raw display
$97$ \( T^{2} \) Copy content Toggle raw display
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