Properties

Label 1120.2.bq.a
Level $1120$
Weight $2$
Character orbit 1120.bq
Analytic conductor $8.943$
Analytic rank $0$
Dimension $8$
CM discriminant -40
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1120,2,Mod(719,1120)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1120, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 3, 3, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1120.719");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1120 = 2^{5} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1120.bq (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: \(8.94324502638\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{6})\)
Coefficient field: 8.0.3317760000.3
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 4x^{6} + 7x^{4} - 36x^{2} + 81 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{9}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 280)
Sato-Tate group: $\mathrm{U}(1)[D_{6}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{5} + ( - \beta_{6} - \beta_{2} + \beta_1) q^{7} + 3 \beta_{3} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{5} + ( - \beta_{6} - \beta_{2} + \beta_1) q^{7} + 3 \beta_{3} q^{9} + (\beta_{7} + 2 \beta_{5} - \beta_{3} + 1) q^{11} + (\beta_{6} - 4 \beta_{4} + \cdots - \beta_1) q^{13}+ \cdots + ( - 3 \beta_{7} + 3 \beta_{5} + 3) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 12 q^{9} + 4 q^{11} - 36 q^{19} + 20 q^{25} - 20 q^{35} - 24 q^{49} + 20 q^{65} - 36 q^{81} + 40 q^{91} + 24 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 4x^{6} + 7x^{4} - 36x^{2} + 81 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{6} + 14\nu^{4} + 7\nu^{2} - 36 ) / 63 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -4\nu^{7} + 7\nu^{5} + 35\nu^{3} + 81\nu ) / 189 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -4\nu^{6} + 7\nu^{4} - 28\nu^{2} + 144 ) / 63 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -5\nu^{7} - 7\nu^{5} - 35\nu^{3} + 180\nu ) / 189 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{7} + 13\nu ) / 21 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -8\nu^{6} + 14\nu^{4} + 7\nu^{2} + 162 ) / 63 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 19\nu^{7} - 49\nu^{5} + 133\nu^{3} - 684\nu ) / 189 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{5} + \beta_{4} + \beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{6} - 2\beta_{3} + 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{7} + \beta_{5} + 7\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{3} + 4\beta_1 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -5\beta_{7} - 19\beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( -7\beta_{6} + 7\beta _1 + 22 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 29\beta_{5} - 13\beta_{4} - 13\beta_{2} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1120\mathbb{Z}\right)^\times\).

\(n\) \(351\) \(421\) \(801\) \(897\)
\(\chi(n)\) \(-1\) \(-1\) \(\beta_{3}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
719.1
−1.01575 1.40294i
1.01575 + 1.40294i
1.72286 + 0.178197i
−1.72286 0.178197i
−1.01575 + 1.40294i
1.01575 1.40294i
1.72286 0.178197i
−1.72286 + 0.178197i
0 0 0 −1.93649 1.11803i 0 −1.41421 2.23607i 0 1.50000 2.59808i 0
719.2 0 0 0 −1.93649 1.11803i 0 1.41421 2.23607i 0 1.50000 2.59808i 0
719.3 0 0 0 1.93649 + 1.11803i 0 −1.41421 + 2.23607i 0 1.50000 2.59808i 0
719.4 0 0 0 1.93649 + 1.11803i 0 1.41421 + 2.23607i 0 1.50000 2.59808i 0
1039.1 0 0 0 −1.93649 + 1.11803i 0 −1.41421 + 2.23607i 0 1.50000 + 2.59808i 0
1039.2 0 0 0 −1.93649 + 1.11803i 0 1.41421 + 2.23607i 0 1.50000 + 2.59808i 0
1039.3 0 0 0 1.93649 1.11803i 0 −1.41421 2.23607i 0 1.50000 + 2.59808i 0
1039.4 0 0 0 1.93649 1.11803i 0 1.41421 2.23607i 0 1.50000 + 2.59808i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 719.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
40.e odd 2 1 CM by \(\Q(\sqrt{-10}) \)
5.b even 2 1 inner
7.d odd 6 1 inner
8.d odd 2 1 inner
35.i odd 6 1 inner
56.m even 6 1 inner
280.ba even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1120.2.bq.a 8
4.b odd 2 1 280.2.ba.a 8
5.b even 2 1 inner 1120.2.bq.a 8
7.d odd 6 1 inner 1120.2.bq.a 8
8.b even 2 1 280.2.ba.a 8
8.d odd 2 1 inner 1120.2.bq.a 8
20.d odd 2 1 280.2.ba.a 8
28.f even 6 1 280.2.ba.a 8
35.i odd 6 1 inner 1120.2.bq.a 8
40.e odd 2 1 CM 1120.2.bq.a 8
40.f even 2 1 280.2.ba.a 8
56.j odd 6 1 280.2.ba.a 8
56.m even 6 1 inner 1120.2.bq.a 8
140.s even 6 1 280.2.ba.a 8
280.ba even 6 1 inner 1120.2.bq.a 8
280.bk odd 6 1 280.2.ba.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
280.2.ba.a 8 4.b odd 2 1
280.2.ba.a 8 8.b even 2 1
280.2.ba.a 8 20.d odd 2 1
280.2.ba.a 8 28.f even 6 1
280.2.ba.a 8 40.f even 2 1
280.2.ba.a 8 56.j odd 6 1
280.2.ba.a 8 140.s even 6 1
280.2.ba.a 8 280.bk odd 6 1
1120.2.bq.a 8 1.a even 1 1 trivial
1120.2.bq.a 8 5.b even 2 1 inner
1120.2.bq.a 8 7.d odd 6 1 inner
1120.2.bq.a 8 8.d odd 2 1 inner
1120.2.bq.a 8 35.i odd 6 1 inner
1120.2.bq.a 8 40.e odd 2 1 CM
1120.2.bq.a 8 56.m even 6 1 inner
1120.2.bq.a 8 280.ba even 6 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3} \) acting on \(S_{2}^{\mathrm{new}}(1120, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} - 5 T^{2} + 25)^{2} \) Copy content Toggle raw display
$7$ \( (T^{4} + 6 T^{2} + 49)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} - 2 T^{3} + \cdots + 841)^{2} \) Copy content Toggle raw display
$13$ \( (T^{4} + 58 T^{2} + 361)^{2} \) Copy content Toggle raw display
$17$ \( T^{8} \) Copy content Toggle raw display
$19$ \( (T^{4} + 18 T^{3} + \cdots + 289)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + 66 T^{6} + \cdots + 81 \) Copy content Toggle raw display
$29$ \( T^{8} \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( T^{8} + 94 T^{6} + \cdots + 83521 \) Copy content Toggle raw display
$41$ \( (T^{4} + 86 T^{2} + 1369)^{2} \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( T^{8} - 102 T^{6} + \cdots + 2313441 \) Copy content Toggle raw display
$53$ \( T^{8} + 286 T^{6} + \cdots + 260144641 \) Copy content Toggle raw display
$59$ \( (T^{4} - 40 T^{2} + 1600)^{2} \) Copy content Toggle raw display
$61$ \( T^{8} \) Copy content Toggle raw display
$67$ \( T^{8} \) Copy content Toggle raw display
$71$ \( T^{8} \) Copy content Toggle raw display
$73$ \( T^{8} \) Copy content Toggle raw display
$79$ \( T^{8} \) Copy content Toggle raw display
$83$ \( T^{8} \) Copy content Toggle raw display
$89$ \( (T^{4} - 160 T^{2} + 25600)^{2} \) Copy content Toggle raw display
$97$ \( T^{8} \) Copy content Toggle raw display
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