Properties

Label 1476.2.bb.a
Level $1476$
Weight $2$
Character orbit 1476.bb
Analytic conductor $11.786$
Analytic rank $0$
Dimension $8$
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] = [1476,2,Mod(433,1476)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1476, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([0, 0, 9]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1476.433");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1476 = 2^{2} \cdot 3^{2} \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1476.bb (of order \(10\), degree \(4\), 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: \(11.7859193383\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{10})\)
Coefficient field: 8.0.26265625.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 3x^{7} + 2x^{6} + x^{4} + 8x^{2} - 24x + 16 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{10}]$

$q$-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.

\(f(q)\) \(=\) \( q + ( - \beta_{7} - \beta_{2}) q^{5} + (2 \beta_1 + 2) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{7} - \beta_{2}) q^{5} + (2 \beta_1 + 2) q^{7} + ( - \beta_{7} - \beta_{6} + \cdots + 2 \beta_{2}) q^{11}+ \cdots + ( - 2 \beta_{4} - \beta_{3} + 5 \beta_1 - 4) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 20 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 20 q^{7} - 20 q^{13} + 40 q^{19} - 40 q^{25} - 4 q^{31} - 42 q^{37} + 16 q^{43} + 26 q^{49} - 2 q^{61} + 40 q^{67} - 76 q^{73} - 80 q^{91} - 20 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 3x^{7} + 2x^{6} + x^{4} + 8x^{2} - 24x + 16 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{7} - \nu^{6} + \nu^{3} + 2\nu^{2} + 4\nu - 8 ) / 8 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{7} - \nu^{6} + \nu^{3} + 2\nu^{2} + 20\nu - 16 ) / 8 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -7\nu^{7} + 9\nu^{6} + 2\nu^{5} + 4\nu^{4} + \nu^{3} - 4\nu^{2} - 60\nu + 64 ) / 8 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 7\nu^{7} - 13\nu^{6} - 2\nu^{5} + 7\nu^{3} + 8\nu^{2} + 64\nu - 96 ) / 8 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -5\nu^{7} + 6\nu^{6} + \nu^{5} + 2\nu^{4} - \nu^{3} + 3\nu^{2} - 44\nu + 44 ) / 4 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -9\nu^{7} + 19\nu^{6} - 2\nu^{5} - 9\nu^{3} - 8\nu^{2} - 80\nu + 136 ) / 8 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -15\nu^{7} + 22\nu^{6} + 5\nu^{5} + 8\nu^{4} - 7\nu^{3} - 7\nu^{2} - 134\nu + 152 ) / 4 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} - \beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{5} - \beta_{3} + \beta_{2} + 2\beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -\beta_{7} - \beta_{4} + 4\beta_{3} + \beta_{2} + 4\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 2\beta_{7} + \beta_{6} - 2\beta_{5} + 5\beta_{4} - 2\beta_{3} + 5 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -3\beta_{6} - 5\beta_{4} + 3\beta_{2} + 5\beta _1 + 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( \beta_{6} - \beta_{5} - \beta_{4} + \beta_{3} + 4\beta_{2} + 9\beta _1 - 9 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( \beta_{7} + \beta_{6} - 3\beta_{5} - \beta_{3} - 3\beta_{2} + 21\beta _1 + 1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1476\mathbb{Z}\right)^\times\).

\(n\) \(739\) \(821\) \(1441\)
\(\chi(n)\) \(1\) \(1\) \(-\beta_{4}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
433.1
1.40799 + 0.132563i
−1.21700 0.720348i
1.33631 0.462894i
−0.0272949 + 1.41395i
1.40799 0.132563i
−1.21700 + 0.720348i
1.33631 + 0.462894i
−0.0272949 1.41395i
0 0 0 −2.62499 + 1.90717i 0 3.61803 + 1.17557i 0 0 0
433.2 0 0 0 2.62499 1.90717i 0 3.61803 + 1.17557i 0 0 0
865.1 0 0 0 −1.36361 + 4.19675i 0 1.38197 1.90211i 0 0 0
865.2 0 0 0 1.36361 4.19675i 0 1.38197 1.90211i 0 0 0
1009.1 0 0 0 −2.62499 1.90717i 0 3.61803 1.17557i 0 0 0
1009.2 0 0 0 2.62499 + 1.90717i 0 3.61803 1.17557i 0 0 0
1261.1 0 0 0 −1.36361 4.19675i 0 1.38197 + 1.90211i 0 0 0
1261.2 0 0 0 1.36361 + 4.19675i 0 1.38197 + 1.90211i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 433.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
41.f even 10 1 inner
123.l odd 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1476.2.bb.a 8
3.b odd 2 1 inner 1476.2.bb.a 8
41.f even 10 1 inner 1476.2.bb.a 8
123.l odd 10 1 inner 1476.2.bb.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1476.2.bb.a 8 1.a even 1 1 trivial
1476.2.bb.a 8 3.b odd 2 1 inner
1476.2.bb.a 8 41.f even 10 1 inner
1476.2.bb.a 8 123.l odd 10 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{8} + 25T_{5}^{6} + 285T_{5}^{4} + 1025T_{5}^{2} + 42025 \) acting on \(S_{2}^{\mathrm{new}}(1476, [\chi])\). 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
$5$ \( T^{8} + 25 T^{6} + \cdots + 42025 \) Copy content Toggle raw display
$7$ \( (T^{4} - 10 T^{3} + \cdots + 80)^{2} \) Copy content Toggle raw display
$11$ \( T^{8} - 59 T^{6} + \cdots + 1681 \) Copy content Toggle raw display
$13$ \( (T^{4} + 10 T^{3} + \cdots + 80)^{2} \) Copy content Toggle raw display
$17$ \( T^{8} - 16 T^{6} + \cdots + 430336 \) Copy content Toggle raw display
$19$ \( (T^{4} - 20 T^{3} + \cdots + 1805)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + 115 T^{6} + \cdots + 42025 \) Copy content Toggle raw display
$29$ \( T^{8} - 4 T^{6} + \cdots + 1681 \) Copy content Toggle raw display
$31$ \( (T^{4} + 2 T^{3} + \cdots + 361)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 21 T^{3} + \cdots + 6241)^{2} \) Copy content Toggle raw display
$41$ \( T^{8} - 11 T^{6} + \cdots + 2825761 \) Copy content Toggle raw display
$43$ \( (T^{4} - 8 T^{3} + \cdots + 4096)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} - 155 T^{6} + \cdots + 1050625 \) Copy content Toggle raw display
$53$ \( T^{8} - 159 T^{6} + \cdots + 24611521 \) Copy content Toggle raw display
$59$ \( T^{8} + 305 T^{6} + \cdots + 42025 \) Copy content Toggle raw display
$61$ \( (T^{4} + T^{3} + 76 T^{2} + \cdots + 961)^{2} \) Copy content Toggle raw display
$67$ \( (T^{4} - 20 T^{3} + \cdots + 125)^{2} \) Copy content Toggle raw display
$71$ \( T^{8} + 9 T^{6} + \cdots + 1681 \) Copy content Toggle raw display
$73$ \( (T^{2} + 19 T + 79)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} + 170 T^{2} + 5)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} - 315 T^{2} + 16605)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} - 144 T^{6} + \cdots + 110166016 \) Copy content Toggle raw display
$97$ \( (T^{4} + 10 T^{3} + \cdots + 605)^{2} \) Copy content Toggle raw display
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