Properties

Label 1560.2.bg.i
Level $1560$
Weight $2$
Character orbit 1560.bg
Analytic conductor $12.457$
Analytic rank $0$
Dimension $6$
CM no
Inner twists $2$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1560,2,Mod(601,1560)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1560, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1560.601");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1560 = 2^{3} \cdot 3 \cdot 5 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1560.bg (of order \(3\), degree \(2\), 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: \(12.4566627153\)
Analytic rank: \(0\)
Dimension: \(6\)
Relative dimension: \(3\) over \(\Q(\zeta_{3})\)
Coefficient field: 6.0.954288.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{5} - 2x^{4} + 3x^{3} - 6x^{2} - 9x + 27 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 3 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_{3} - 1) q^{3} + q^{5} + (\beta_{5} - \beta_{4}) q^{7} - \beta_{3} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{3} - 1) q^{3} + q^{5} + (\beta_{5} - \beta_{4}) q^{7} - \beta_{3} q^{9} + (\beta_{5} - \beta_{4} - \beta_{3} + \cdots - 1) q^{13}+ \cdots + ( - 3 \beta_{5} + 3 \beta_{4} + \cdots - \beta_1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 3 q^{3} + 6 q^{5} + q^{7} - 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 3 q^{3} + 6 q^{5} + q^{7} - 3 q^{9} - 7 q^{13} - 3 q^{15} + 6 q^{17} - 2 q^{21} + 8 q^{23} + 6 q^{25} + 6 q^{27} + 4 q^{29} - 6 q^{31} + q^{35} + 2 q^{37} + 8 q^{39} + 6 q^{41} + 3 q^{43} - 3 q^{45} + 4 q^{47} + 10 q^{49} - 12 q^{51} + 24 q^{53} + 12 q^{59} + 7 q^{61} + q^{63} - 7 q^{65} - q^{67} + 8 q^{69} + 2 q^{71} + 6 q^{73} - 3 q^{75} + 14 q^{79} - 3 q^{81} - 4 q^{83} + 6 q^{85} + 4 q^{87} + 8 q^{89} - 17 q^{91} + 3 q^{93} + 11 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} - x^{5} - 2x^{4} + 3x^{3} - 6x^{2} - 9x + 27 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{5} + 4\nu^{4} - \nu^{3} + 9\nu^{2} - 21\nu - 9 ) / 27 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{5} + 4\nu^{4} - \nu^{3} - 18\nu^{2} + 33\nu - 9 ) / 27 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -2\nu^{5} - \nu^{4} - 2\nu^{3} + 12\nu + 36 ) / 27 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -2\nu^{5} - \nu^{4} + 7\nu^{3} + 9\nu^{2} + 12\nu + 9 ) / 27 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 4\nu^{5} + 2\nu^{4} - 5\nu^{3} + 18\nu^{2} + 3\nu - 72 ) / 27 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{5} + \beta_{4} + \beta_{3} + \beta_{2} - \beta _1 + 1 ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 2\beta_{5} + 2\beta_{4} + 2\beta_{3} - \beta_{2} + \beta _1 + 2 ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{5} + 7\beta_{4} - 11\beta_{3} + \beta_{2} - \beta _1 + 7 ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 2\beta_{5} + 2\beta_{4} - 7\beta_{3} + 8\beta_{2} + 10\beta _1 + 20 ) / 3 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 7\beta_{5} - 2\beta_{4} - 20\beta_{3} + \beta_{2} - 10\beta _1 + 43 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1560\mathbb{Z}\right)^\times\).

\(n\) \(391\) \(521\) \(781\) \(937\) \(1081\)
\(\chi(n)\) \(1\) \(1\) \(1\) \(1\) \(-\beta_{3}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
601.1
1.71903 + 0.211943i
−1.62241 + 0.606458i
0.403374 1.68443i
1.71903 0.211943i
−1.62241 0.606458i
0.403374 + 1.68443i
0 −0.500000 0.866025i 0 1.00000 0 −1.04307 + 1.80664i 0 −0.500000 + 0.866025i 0
601.2 0 −0.500000 0.866025i 0 1.00000 0 0.285997 0.495361i 0 −0.500000 + 0.866025i 0
601.3 0 −0.500000 0.866025i 0 1.00000 0 1.25707 2.17731i 0 −0.500000 + 0.866025i 0
841.1 0 −0.500000 + 0.866025i 0 1.00000 0 −1.04307 1.80664i 0 −0.500000 0.866025i 0
841.2 0 −0.500000 + 0.866025i 0 1.00000 0 0.285997 + 0.495361i 0 −0.500000 0.866025i 0
841.3 0 −0.500000 + 0.866025i 0 1.00000 0 1.25707 + 2.17731i 0 −0.500000 0.866025i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 601.3
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
13.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1560.2.bg.i 6
13.c even 3 1 inner 1560.2.bg.i 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1560.2.bg.i 6 1.a even 1 1 trivial
1560.2.bg.i 6 13.c even 3 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1560, [\chi])\):

\( T_{7}^{6} - T_{7}^{5} + 6T_{7}^{4} - T_{7}^{3} + 28T_{7}^{2} - 15T_{7} + 9 \) Copy content Toggle raw display
\( T_{11} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} \) Copy content Toggle raw display
$3$ \( (T^{2} + T + 1)^{3} \) Copy content Toggle raw display
$5$ \( (T - 1)^{6} \) Copy content Toggle raw display
$7$ \( T^{6} - T^{5} + 6 T^{4} + \cdots + 9 \) Copy content Toggle raw display
$11$ \( T^{6} \) Copy content Toggle raw display
$13$ \( T^{6} + 7 T^{5} + \cdots + 2197 \) Copy content Toggle raw display
$17$ \( T^{6} - 6 T^{5} + \cdots + 21316 \) Copy content Toggle raw display
$19$ \( T^{6} + 24 T^{4} + \cdots + 1296 \) Copy content Toggle raw display
$23$ \( T^{6} - 8 T^{5} + \cdots + 2304 \) Copy content Toggle raw display
$29$ \( T^{6} - 4 T^{5} + \cdots + 60516 \) Copy content Toggle raw display
$31$ \( (T^{3} + 3 T^{2} - 21 T - 59)^{2} \) Copy content Toggle raw display
$37$ \( T^{6} - 2 T^{5} + \cdots + 576 \) Copy content Toggle raw display
$41$ \( T^{6} - 6 T^{5} + \cdots + 2916 \) Copy content Toggle raw display
$43$ \( T^{6} - 3 T^{5} + \cdots + 1681 \) Copy content Toggle raw display
$47$ \( (T^{3} - 2 T^{2} - 4 T + 2)^{2} \) Copy content Toggle raw display
$53$ \( (T^{3} - 12 T^{2} + \cdots + 1168)^{2} \) Copy content Toggle raw display
$59$ \( T^{6} - 12 T^{5} + \cdots + 236196 \) Copy content Toggle raw display
$61$ \( T^{6} - 7 T^{5} + \cdots + 8649 \) Copy content Toggle raw display
$67$ \( T^{6} + T^{5} + \cdots + 168921 \) Copy content Toggle raw display
$71$ \( T^{6} - 2 T^{5} + \cdots + 334084 \) Copy content Toggle raw display
$73$ \( (T^{3} - 3 T^{2} + \cdots + 117)^{2} \) Copy content Toggle raw display
$79$ \( (T^{3} - 7 T^{2} + \cdots + 607)^{2} \) Copy content Toggle raw display
$83$ \( (T^{3} + 2 T^{2} - 20 T - 24)^{2} \) Copy content Toggle raw display
$89$ \( T^{6} - 8 T^{5} + \cdots + 544644 \) Copy content Toggle raw display
$97$ \( T^{6} - 11 T^{5} + \cdots + 1 \) Copy content Toggle raw display
show more
show less