Properties

Label 407.3.d.b
Level $407$
Weight $3$
Character orbit 407.d
Self dual yes
Analytic conductor $11.090$
Analytic rank $0$
Dimension $8$
CM discriminant -407
Inner twists $4$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [407,3,Mod(406,407)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(407, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("407.406");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 407 = 11 \cdot 37 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 407.d (of order \(2\), degree \(1\), 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: yes
Analytic conductor: \(11.0899467595\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.8.163480095358976.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 24x^{6} + 180x^{4} - 432x^{2} + 176 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{4}\cdot 3 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-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 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.

\(f(q)\) \(=\) \( q - \beta_{2} q^{2} + \beta_{3} q^{3} + ( - \beta_{6} + \beta_{3} + 4) q^{4} + ( - \beta_{7} - \beta_{4} - 2 \beta_{2}) q^{6} + ( - \beta_{7} - 4 \beta_{2} + \beta_1) q^{8} + (2 \beta_{5} + 9) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{2} q^{2} + \beta_{3} q^{3} + ( - \beta_{6} + \beta_{3} + 4) q^{4} + ( - \beta_{7} - \beta_{4} - 2 \beta_{2}) q^{6} + ( - \beta_{7} - 4 \beta_{2} + \beta_1) q^{8} + (2 \beta_{5} + 9) q^{9} - 11 q^{11} + ( - \beta_{5} + 4 \beta_{3} + 13) q^{12} + (2 \beta_{7} - \beta_1) q^{13} + ( - 4 \beta_{6} - 5 \beta_{5} + \cdots + 16) q^{16}+ \cdots + ( - 22 \beta_{5} - 99) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 32 q^{4} + 72 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 32 q^{4} + 72 q^{9} - 88 q^{11} + 104 q^{12} + 128 q^{16} + 200 q^{25} - 248 q^{34} + 288 q^{36} + 296 q^{37} - 352 q^{44} + 416 q^{48} + 392 q^{49} + 512 q^{64} - 952 q^{78} + 536 q^{81} + 1288 q^{86} - 792 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 24x^{6} + 180x^{4} - 432x^{2} + 176 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 3\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{5} - 14\nu^{3} + 36\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{2} - 6 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{5} + 22\nu^{3} - 100\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{4} - 12\nu^{2} + 18 ) / 2 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( \nu^{6} - 18\nu^{4} + 84\nu^{2} - 72 ) / 8 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( \nu^{7} - 21\nu^{5} + 126\nu^{3} - 188\nu ) / 8 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{3} + 6 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 3\beta_{4} + 3\beta_{2} + 8\beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 2\beta_{5} + 12\beta_{3} + 54 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 42\beta_{4} + 66\beta_{2} + 76\beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 8\beta_{6} + 36\beta_{5} + 132\beta_{3} + 540 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 24\beta_{7} + 504\beta_{4} + 1008\beta_{2} + 776\beta_1 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/407\mathbb{Z}\right)^\times\).

\(n\) \(112\) \(298\)
\(\chi(n)\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
406.1
−2.90094
3.39003
0.712520
−1.89329
1.89329
−0.712520
−3.39003
2.90094
−3.98751 2.41547 11.9002 0 −9.63170 0 −31.5023 −3.16553 0
406.2 −3.04293 5.49232 5.25944 0 −16.7127 0 −3.83239 21.1655 0
406.3 −2.59626 −5.49232 2.74056 0 14.2595 0 3.26983 21.1655 0
406.4 −0.315846 −2.41547 −3.90024 0 0.762915 0 2.49526 −3.16553 0
406.5 0.315846 −2.41547 −3.90024 0 −0.762915 0 −2.49526 −3.16553 0
406.6 2.59626 −5.49232 2.74056 0 −14.2595 0 −3.26983 21.1655 0
406.7 3.04293 5.49232 5.25944 0 16.7127 0 3.83239 21.1655 0
406.8 3.98751 2.41547 11.9002 0 9.63170 0 31.5023 −3.16553 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 406.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
407.d odd 2 1 CM by \(\Q(\sqrt{-407}) \)
11.b odd 2 1 inner
37.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 407.3.d.b 8
11.b odd 2 1 inner 407.3.d.b 8
37.b even 2 1 inner 407.3.d.b 8
407.d odd 2 1 CM 407.3.d.b 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
407.3.d.b 8 1.a even 1 1 trivial
407.3.d.b 8 11.b odd 2 1 inner
407.3.d.b 8 37.b even 2 1 inner
407.3.d.b 8 407.d odd 2 1 CM

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} - 32T_{2}^{6} + 320T_{2}^{4} - 1024T_{2}^{2} + 99 \) acting on \(S_{3}^{\mathrm{new}}(407, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} - 32 T^{6} + \cdots + 99 \) Copy content Toggle raw display
$3$ \( (T^{4} - 36 T^{2} + 176)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( (T + 11)^{8} \) Copy content Toggle raw display
$13$ \( T^{8} + \cdots + 2346044976 \) Copy content Toggle raw display
$17$ \( T^{8} + \cdots + 27901857456 \) Copy content Toggle raw display
$19$ \( T^{8} + \cdots + 64092316464 \) Copy content Toggle raw display
$23$ \( T^{8} \) Copy content Toggle raw display
$29$ \( T^{8} + \cdots + 751606556976 \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( (T - 37)^{8} \) Copy content Toggle raw display
$41$ \( T^{8} \) Copy content Toggle raw display
$43$ \( T^{8} + \cdots + 37955984155056 \) Copy content Toggle raw display
$47$ \( (T^{2} - 7252)^{4} \) Copy content Toggle raw display
$53$ \( (T^{4} - 11236 T^{2} + 1724976)^{2} \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( T^{8} + \cdots + 7769807288496 \) Copy content Toggle raw display
$67$ \( (T^{2} - 3700)^{4} \) Copy content Toggle raw display
$71$ \( (T^{4} - 20164 T^{2} + 61473456)^{2} \) Copy content Toggle raw display
$73$ \( T^{8} \) Copy content Toggle raw display
$79$ \( T^{8} + \cdots + 34\!\cdots\!44 \) Copy content Toggle raw display
$83$ \( T^{8} \) Copy content Toggle raw display
$89$ \( T^{8} \) Copy content Toggle raw display
$97$ \( T^{8} \) Copy content Toggle raw display
show more
show less