Properties

Label 1568.2.q.h
Level $1568$
Weight $2$
Character orbit 1568.q
Analytic conductor $12.521$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1568,2,Mod(815,1568)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1568, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 3, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1568.815");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1568 = 2^{5} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1568.q (of order \(6\), degree \(2\), 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: \(12.5205430369\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} + 4x^{14} + 6x^{12} + 8x^{10} + 20x^{8} + 32x^{6} + 96x^{4} + 256x^{2} + 256 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{9}]\)
Coefficient ring index: \( 2^{14} \)
Twist minimal: no (minimal twist has level 392)
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{6} q^{3} + \beta_{15} q^{5} + (\beta_{8} + \beta_{3} - 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{6} q^{3} + \beta_{15} q^{5} + (\beta_{8} + \beta_{3} - 1) q^{9} - 3 \beta_{4} q^{11} - \beta_{9} q^{13} - \beta_{11} q^{15} + (\beta_{6} - 2 \beta_1) q^{17} + ( - 2 \beta_{10} - \beta_{7} + \beta_1) q^{19} + \beta_{14} q^{23} + ( - 2 \beta_{4} - 7 \beta_{3}) q^{25} + (3 \beta_{10} + \beta_{7} - 3 \beta_{6}) q^{27} + \beta_{13} q^{29} + ( - 2 \beta_{15} - 2 \beta_{9} + \cdots + \beta_{2}) q^{31}+ \cdots + (3 \beta_{8} + 3 \beta_{4} - 6) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 8 q^{9} - 56 q^{25} - 64 q^{43} + 16 q^{51} - 64 q^{57} + 96 q^{65} - 16 q^{67} + 24 q^{81} - 96 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} + 4x^{14} + 6x^{12} + 8x^{10} + 20x^{8} + 32x^{6} + 96x^{4} + 256x^{2} + 256 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 5\nu^{15} + 44\nu^{13} + 6\nu^{11} + 24\nu^{9} + 148\nu^{7} + 64\nu^{5} + 384\nu^{3} + 2944\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 3\nu^{13} + 2\nu^{11} + 2\nu^{9} + 12\nu^{7} + 12\nu^{5} + 24\nu^{3} + 160\nu ) / 16 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -3\nu^{14} + 3\nu^{12} + 2\nu^{10} - 6\nu^{8} + 12\nu^{6} + 12\nu^{4} - 96\nu^{2} + 384 ) / 224 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -11\nu^{14} - 24\nu^{12} - 2\nu^{10} - 64\nu^{8} - 124\nu^{6} - 208\nu^{4} - 800\nu^{2} - 1280 ) / 448 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -5\nu^{15} + 40\nu^{13} + 50\nu^{11} + 32\nu^{9} + 188\nu^{7} + 272\nu^{5} + 288\nu^{3} + 3328\nu ) / 448 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -15\nu^{15} - 20\nu^{13} - 18\nu^{11} - 72\nu^{9} + 4\nu^{7} - 192\nu^{5} - 1152\nu^{3} - 768\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 6\nu^{15} + 15\nu^{13} + 10\nu^{11} + 26\nu^{9} + 60\nu^{7} + 60\nu^{5} + 360\nu^{3} + 800\nu ) / 224 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -6\nu^{14} - 15\nu^{12} - 10\nu^{10} - 26\nu^{8} - 60\nu^{6} - 60\nu^{4} - 472\nu^{2} - 800 ) / 112 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( \nu^{15} + 3\nu^{13} + 2\nu^{11} + 2\nu^{9} + 12\nu^{7} + 12\nu^{5} + 96\nu^{3} + 160\nu ) / 32 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 29\nu^{15} + 76\nu^{13} + 46\nu^{11} + 184\nu^{9} + 388\nu^{7} + 192\nu^{5} + 2272\nu^{3} + 4352\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 5\nu^{14} - 12\nu^{12} + 6\nu^{10} + 24\nu^{8} - 76\nu^{6} + 64\nu^{4} + 384\nu^{2} - 864 ) / 112 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 8\nu^{14} + 27\nu^{12} + 4\nu^{10} + 58\nu^{8} + 136\nu^{6} - 4\nu^{4} + 704\nu^{2} + 1664 ) / 112 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( -15\nu^{14} - 20\nu^{12} - 18\nu^{10} - 72\nu^{8} - 220\nu^{6} - 192\nu^{4} - 1152\nu^{2} - 1216 ) / 224 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -19\nu^{14} - 51\nu^{12} - 34\nu^{10} - 122\nu^{8} - 204\nu^{6} - 204\nu^{4} - 1392\nu^{2} - 2720 ) / 112 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 23\nu^{15} + 47\nu^{13} + 22\nu^{11} + 130\nu^{9} + 244\nu^{7} + 300\nu^{5} + 1632\nu^{3} + 2432\nu ) / 224 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{5} - \beta_{2} + 2\beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{14} + \beta_{12} + \beta_{11} - 2\beta_{8} + 4\beta_{3} - 4 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{10} + \beta_{9} - 3\beta_{7} - \beta_{6} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -\beta_{12} - 4\beta_{4} + 2\beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 2\beta_{15} - 6\beta_{10} + \beta_{5} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -3\beta_{13} - \beta_{11} + 2\beta_{8} + 2\beta_{4} - 4 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( \beta_{15} + \beta_{9} + 7\beta_{6} - 3\beta_1 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( -2\beta_{14} + \beta_{12} + \beta_{11} + 8\beta_{8} + 2\beta_{3} - 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( 6\beta_{10} - 6\beta_{9} - 4\beta_{7} - 6\beta_{6} + \beta_{2} \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( -3\beta_{14} - 3\beta_{13} - 3\beta_{12} + 18\beta_{4} + 4\beta_{3} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( -6\beta_{15} + 6\beta_{10} + 22\beta_{7} + 4\beta_{5} - 22\beta_1 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 8\beta_{13} - 2\beta_{11} - 8\beta_{8} - 8\beta_{4} - 52 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( -4\beta_{15} - 4\beta_{9} - 20\beta_{6} - 18\beta_{5} + 18\beta_{2} \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( -6\beta_{14} - 14\beta_{12} - 14\beta_{11} - 4\beta_{8} - 104\beta_{3} + 104 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( -36\beta_{10} - 4\beta_{9} + 108\beta_{7} + 36\beta_{6} - 16\beta_{2} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1568\mathbb{Z}\right)^\times\).

\(n\) \(197\) \(1471\) \(1473\)
\(\chi(n)\) \(-1\) \(-1\) \(1 - \beta_{3}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
815.1
−1.01214 + 0.987711i
0.349313 1.37039i
1.33546 0.465333i
0.264742 + 1.38921i
−0.264742 1.38921i
−1.33546 + 0.465333i
−0.349313 + 1.37039i
1.01214 0.987711i
−1.01214 0.987711i
0.349313 + 1.37039i
1.33546 + 0.465333i
0.264742 1.38921i
−0.264742 + 1.38921i
−1.33546 0.465333i
−0.349313 1.37039i
1.01214 + 0.987711i
0 −1.60021 0.923880i 0 −1.92538 3.33486i 0 0 0 0.207107 + 0.358719i 0
815.2 0 −1.60021 0.923880i 0 1.92538 + 3.33486i 0 0 0 0.207107 + 0.358719i 0
815.3 0 −0.662827 0.382683i 0 −1.51423 2.62272i 0 0 0 −1.20711 2.09077i 0
815.4 0 −0.662827 0.382683i 0 1.51423 + 2.62272i 0 0 0 −1.20711 2.09077i 0
815.5 0 0.662827 + 0.382683i 0 −1.51423 2.62272i 0 0 0 −1.20711 2.09077i 0
815.6 0 0.662827 + 0.382683i 0 1.51423 + 2.62272i 0 0 0 −1.20711 2.09077i 0
815.7 0 1.60021 + 0.923880i 0 −1.92538 3.33486i 0 0 0 0.207107 + 0.358719i 0
815.8 0 1.60021 + 0.923880i 0 1.92538 + 3.33486i 0 0 0 0.207107 + 0.358719i 0
1391.1 0 −1.60021 + 0.923880i 0 −1.92538 + 3.33486i 0 0 0 0.207107 0.358719i 0
1391.2 0 −1.60021 + 0.923880i 0 1.92538 3.33486i 0 0 0 0.207107 0.358719i 0
1391.3 0 −0.662827 + 0.382683i 0 −1.51423 + 2.62272i 0 0 0 −1.20711 + 2.09077i 0
1391.4 0 −0.662827 + 0.382683i 0 1.51423 2.62272i 0 0 0 −1.20711 + 2.09077i 0
1391.5 0 0.662827 0.382683i 0 −1.51423 + 2.62272i 0 0 0 −1.20711 + 2.09077i 0
1391.6 0 0.662827 0.382683i 0 1.51423 2.62272i 0 0 0 −1.20711 + 2.09077i 0
1391.7 0 1.60021 0.923880i 0 −1.92538 + 3.33486i 0 0 0 0.207107 0.358719i 0
1391.8 0 1.60021 0.923880i 0 1.92538 3.33486i 0 0 0 0.207107 0.358719i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 815.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 inner
7.c even 3 1 inner
7.d odd 6 1 inner
8.d odd 2 1 inner
56.e even 2 1 inner
56.k odd 6 1 inner
56.m even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1568.2.q.h 16
4.b odd 2 1 392.2.m.h 16
7.b odd 2 1 inner 1568.2.q.h 16
7.c even 3 1 1568.2.e.d 8
7.c even 3 1 inner 1568.2.q.h 16
7.d odd 6 1 1568.2.e.d 8
7.d odd 6 1 inner 1568.2.q.h 16
8.b even 2 1 392.2.m.h 16
8.d odd 2 1 inner 1568.2.q.h 16
28.d even 2 1 392.2.m.h 16
28.f even 6 1 392.2.e.d 8
28.f even 6 1 392.2.m.h 16
28.g odd 6 1 392.2.e.d 8
28.g odd 6 1 392.2.m.h 16
56.e even 2 1 inner 1568.2.q.h 16
56.h odd 2 1 392.2.m.h 16
56.j odd 6 1 392.2.e.d 8
56.j odd 6 1 392.2.m.h 16
56.k odd 6 1 1568.2.e.d 8
56.k odd 6 1 inner 1568.2.q.h 16
56.m even 6 1 1568.2.e.d 8
56.m even 6 1 inner 1568.2.q.h 16
56.p even 6 1 392.2.e.d 8
56.p even 6 1 392.2.m.h 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
392.2.e.d 8 28.f even 6 1
392.2.e.d 8 28.g odd 6 1
392.2.e.d 8 56.j odd 6 1
392.2.e.d 8 56.p even 6 1
392.2.m.h 16 4.b odd 2 1
392.2.m.h 16 8.b even 2 1
392.2.m.h 16 28.d even 2 1
392.2.m.h 16 28.f even 6 1
392.2.m.h 16 28.g odd 6 1
392.2.m.h 16 56.h odd 2 1
392.2.m.h 16 56.j odd 6 1
392.2.m.h 16 56.p even 6 1
1568.2.e.d 8 7.c even 3 1
1568.2.e.d 8 7.d odd 6 1
1568.2.e.d 8 56.k odd 6 1
1568.2.e.d 8 56.m even 6 1
1568.2.q.h 16 1.a even 1 1 trivial
1568.2.q.h 16 7.b odd 2 1 inner
1568.2.q.h 16 7.c even 3 1 inner
1568.2.q.h 16 7.d odd 6 1 inner
1568.2.q.h 16 8.d odd 2 1 inner
1568.2.q.h 16 56.e even 2 1 inner
1568.2.q.h 16 56.k odd 6 1 inner
1568.2.q.h 16 56.m even 6 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1568, [\chi])\):

\( T_{3}^{8} - 4T_{3}^{6} + 14T_{3}^{4} - 8T_{3}^{2} + 4 \) Copy content Toggle raw display
\( T_{5}^{8} + 24T_{5}^{6} + 440T_{5}^{4} + 3264T_{5}^{2} + 18496 \) Copy content Toggle raw display
\( T_{23}^{8} - 40T_{23}^{6} + 1328T_{23}^{4} - 10880T_{23}^{2} + 73984 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{8} - 4 T^{6} + 14 T^{4} + \cdots + 4)^{2} \) Copy content Toggle raw display
$5$ \( (T^{8} + 24 T^{6} + \cdots + 18496)^{2} \) Copy content Toggle raw display
$7$ \( T^{16} \) Copy content Toggle raw display
$11$ \( (T^{4} + 18 T^{2} + 324)^{4} \) Copy content Toggle raw display
$13$ \( (T^{4} - 24 T^{2} + 136)^{4} \) Copy content Toggle raw display
$17$ \( (T^{8} - 20 T^{6} + 398 T^{4} + \cdots + 4)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} - 20 T^{6} + \cdots + 9604)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} - 40 T^{6} + \cdots + 73984)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 40 T^{2} + 272)^{4} \) Copy content Toggle raw display
$31$ \( (T^{8} + 112 T^{6} + \cdots + 295936)^{2} \) Copy content Toggle raw display
$37$ \( (T^{8} - 56 T^{6} + \cdots + 73984)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + 52 T^{2} + 98)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} + 8 T + 14)^{8} \) Copy content Toggle raw display
$47$ \( (T^{8} + 96 T^{6} + \cdots + 4734976)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} - 112 T^{6} + \cdots + 1183744)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} - 116 T^{6} + \cdots + 4)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + 56 T^{6} + \cdots + 18496)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 2 T + 4)^{8} \) Copy content Toggle raw display
$71$ \( (T^{4} + 464 T^{2} + 53312)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} - 20 T^{6} + \cdots + 9604)^{2} \) Copy content Toggle raw display
$79$ \( (T^{8} - 160 T^{6} + \cdots + 18939904)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 100 T^{2} + 1250)^{4} \) Copy content Toggle raw display
$89$ \( (T^{8} - 100 T^{6} + \cdots + 334084)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 324 T^{2} + 13122)^{4} \) Copy content Toggle raw display
show more
show less