Properties

Label 448.2.q.b
Level $448$
Weight $2$
Character orbit 448.q
Analytic conductor $3.577$
Analytic rank $0$
Dimension $12$
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] = [448,2,Mod(31,448)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(448, 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("448.31");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 448 = 2^{6} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 448.q (of order \(6\), 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: \(3.57729801055\)
Analytic rank: \(0\)
Dimension: \(12\)
Relative dimension: \(6\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{12} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - 4x^{9} - 16x^{8} + 8x^{7} + 8x^{6} + 32x^{5} + 240x^{4} + 120x^{3} + 32x^{2} + 16x + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{6} \)
Twist minimal: yes
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 \(1,\beta_1,\ldots,\beta_{11}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{5} q^{3} + ( - \beta_{7} + \beta_{6}) q^{5} + ( - \beta_{10} + \beta_{4}) q^{7} + ( - \beta_{11} + \beta_{7}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{5} q^{3} + ( - \beta_{7} + \beta_{6}) q^{5} + ( - \beta_{10} + \beta_{4}) q^{7} + ( - \beta_{11} + \beta_{7}) q^{9} + (2 \beta_{9} + \beta_{4}) q^{11} + (\beta_{2} + 1) q^{13} + (2 \beta_{10} + \beta_{9} + \cdots + \beta_{3}) q^{15}+ \cdots + ( - 3 \beta_{10} - \beta_{9} + \cdots - 3 \beta_{3}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 6 q^{5} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 6 q^{5} + 4 q^{9} + 16 q^{13} - 18 q^{17} - 34 q^{21} - 8 q^{25} - 30 q^{33} + 18 q^{37} + 12 q^{45} + 12 q^{49} - 30 q^{53} + 76 q^{57} - 34 q^{61} + 132 q^{69} - 6 q^{73} - 90 q^{77} - 6 q^{81} - 54 q^{89} + 42 q^{93}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{12} - 4x^{9} - 16x^{8} + 8x^{7} + 8x^{6} + 32x^{5} + 240x^{4} + 120x^{3} + 32x^{2} + 16x + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 76 \nu^{11} + 38 \nu^{10} - 241 \nu^{9} + 480 \nu^{8} + 976 \nu^{7} - 430 \nu^{6} - 504 \nu^{5} + \cdots - 29024 ) / 55944 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 80 \nu^{11} - 40 \nu^{10} + 131 \nu^{9} - 996 \nu^{8} - 782 \nu^{7} + 698 \nu^{6} + 1512 \nu^{5} + \cdots - 78392 ) / 18648 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 545 \nu^{11} - 3880 \nu^{10} + 1940 \nu^{9} - 2706 \nu^{8} + 6952 \nu^{7} + 58604 \nu^{6} + \cdots + 808 ) / 55944 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 1483 \nu^{11} - 9788 \nu^{10} + 4894 \nu^{9} - 7158 \nu^{8} + 17480 \nu^{7} + 147868 \nu^{6} + \cdots + 2096 ) / 111888 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 545 \nu^{11} + 3880 \nu^{10} - 1940 \nu^{9} + 2706 \nu^{8} - 6952 \nu^{7} - 58604 \nu^{6} + \cdots - 808 ) / 37296 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 970 \nu^{11} + 263 \nu^{10} - 76 \nu^{9} + 3918 \nu^{8} + 14227 \nu^{7} - 11488 \nu^{6} + \cdots - 7760 ) / 13986 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 239 \nu^{11} + 64 \nu^{10} - 32 \nu^{9} + 972 \nu^{8} + 3560 \nu^{7} - 2804 \nu^{6} - 954 \nu^{5} + \cdots - 1912 ) / 1776 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 14975 \nu^{11} + 3880 \nu^{10} - 164 \nu^{9} + 59982 \nu^{8} + 223928 \nu^{7} - 179372 \nu^{6} + \cdots - 119800 ) / 55944 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 35149 \nu^{11} - 8528 \nu^{10} - 620 \nu^{9} - 140286 \nu^{8} - 529870 \nu^{7} + 423028 \nu^{6} + \cdots + 281192 ) / 111888 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 14303 \nu^{11} + 3544 \nu^{10} + 4 \nu^{9} + 57210 \nu^{8} + 214562 \nu^{7} - 171644 \nu^{6} + \cdots - 114424 ) / 37296 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 21215 \nu^{11} - 5668 \nu^{10} + 3056 \nu^{9} - 86388 \nu^{8} - 316892 \nu^{7} + 248468 \nu^{6} + \cdots + 169720 ) / 37296 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{10} + \beta_{9} - \beta_{6} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -2\beta_{5} - 3\beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -4\beta_{10} - 4\beta_{9} + \beta_{8} - 4\beta_{5} - 4\beta_{4} - \beta_{3} + 4\beta _1 + 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 2\beta_{11} + 10\beta_{7} - 3\beta_{6} \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( \beta_{11} + 13\beta_{7} - 17\beta_{6} - 18\beta_{5} - 16\beta_{4} - 7\beta_{3} - \beta_{2} - 17\beta _1 - 13 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( -24\beta_{10} - 8\beta_{9} + 25\beta_{8} - 24\beta_{5} - 8\beta_{4} - 25\beta_{3} \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( 4\beta_{11} - 41\beta_{10} - 33\beta_{9} + 20\beta_{8} + 36\beta_{7} - 37\beta_{6} \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 33\beta_{11} + 181\beta_{7} - 81\beta_{6} - 33\beta_{2} - 81\beta _1 - 181 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( - 188 \beta_{10} - 140 \beta_{9} + 105 \beta_{8} - 188 \beta_{5} - 140 \beta_{4} - 105 \beta_{3} + \cdots - 186 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( -538\beta_{10} - 258\beta_{9} + 468\beta_{8} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( 129 \beta_{11} + 925 \beta_{7} - 737 \beta_{6} + 866 \beta_{5} + 608 \beta_{4} + 527 \beta_{3} + \cdots - 925 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/448\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(129\) \(197\)
\(\chi(n)\) \(-1\) \(\beta_{7}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
31.1
−0.353325 0.0946732i
−0.558440 + 2.08413i
0.463767 1.73080i
−1.73080 0.463767i
2.08413 + 0.558440i
0.0946732 0.353325i
−0.353325 + 0.0946732i
−0.558440 2.08413i
0.463767 + 1.73080i
−1.73080 + 0.463767i
2.08413 0.558440i
0.0946732 + 0.353325i
0 −2.48220 1.43310i 0 −0.241348 0.418027i 0 0.447998 2.60755i 0 2.60755 + 4.51640i 0
31.2 0 −1.43366 0.827721i 0 −2.02569 3.50859i 0 2.64257 0.129755i 0 −0.129755 0.224743i 0
31.3 0 −0.182520 0.105378i 0 0.767035 + 1.32854i 0 −2.19457 1.47779i 0 −1.47779 2.55961i 0
31.4 0 0.182520 + 0.105378i 0 0.767035 + 1.32854i 0 2.19457 + 1.47779i 0 −1.47779 2.55961i 0
31.5 0 1.43366 + 0.827721i 0 −2.02569 3.50859i 0 −2.64257 + 0.129755i 0 −0.129755 0.224743i 0
31.6 0 2.48220 + 1.43310i 0 −0.241348 0.418027i 0 −0.447998 + 2.60755i 0 2.60755 + 4.51640i 0
159.1 0 −2.48220 + 1.43310i 0 −0.241348 + 0.418027i 0 0.447998 + 2.60755i 0 2.60755 4.51640i 0
159.2 0 −1.43366 + 0.827721i 0 −2.02569 + 3.50859i 0 2.64257 + 0.129755i 0 −0.129755 + 0.224743i 0
159.3 0 −0.182520 + 0.105378i 0 0.767035 1.32854i 0 −2.19457 + 1.47779i 0 −1.47779 + 2.55961i 0
159.4 0 0.182520 0.105378i 0 0.767035 1.32854i 0 2.19457 1.47779i 0 −1.47779 + 2.55961i 0
159.5 0 1.43366 0.827721i 0 −2.02569 + 3.50859i 0 −2.64257 0.129755i 0 −0.129755 + 0.224743i 0
159.6 0 2.48220 1.43310i 0 −0.241348 + 0.418027i 0 −0.447998 2.60755i 0 2.60755 4.51640i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 31.6
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner
56.j 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 448.2.q.b 12
4.b odd 2 1 inner 448.2.q.b 12
7.c even 3 1 3136.2.e.e 12
7.d odd 6 1 448.2.q.c yes 12
7.d odd 6 1 3136.2.e.d 12
8.b even 2 1 448.2.q.c yes 12
8.d odd 2 1 448.2.q.c yes 12
28.f even 6 1 448.2.q.c yes 12
28.f even 6 1 3136.2.e.d 12
28.g odd 6 1 3136.2.e.e 12
56.j odd 6 1 inner 448.2.q.b 12
56.j odd 6 1 3136.2.e.e 12
56.k odd 6 1 3136.2.e.d 12
56.m even 6 1 inner 448.2.q.b 12
56.m even 6 1 3136.2.e.e 12
56.p even 6 1 3136.2.e.d 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
448.2.q.b 12 1.a even 1 1 trivial
448.2.q.b 12 4.b odd 2 1 inner
448.2.q.b 12 56.j odd 6 1 inner
448.2.q.b 12 56.m even 6 1 inner
448.2.q.c yes 12 7.d odd 6 1
448.2.q.c yes 12 8.b even 2 1
448.2.q.c yes 12 8.d odd 2 1
448.2.q.c yes 12 28.f even 6 1
3136.2.e.d 12 7.d odd 6 1
3136.2.e.d 12 28.f even 6 1
3136.2.e.d 12 56.k odd 6 1
3136.2.e.d 12 56.p even 6 1
3136.2.e.e 12 7.c even 3 1
3136.2.e.e 12 28.g odd 6 1
3136.2.e.e 12 56.j odd 6 1
3136.2.e.e 12 56.m even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(448, [\chi])\):

\( T_{3}^{12} - 11T_{3}^{10} + 98T_{3}^{8} - 251T_{3}^{6} + 518T_{3}^{4} - 23T_{3}^{2} + 1 \) Copy content Toggle raw display
\( T_{5}^{6} + 3T_{5}^{5} + 14T_{5}^{4} - 9T_{5}^{3} + 34T_{5}^{2} + 15T_{5} + 9 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} \) Copy content Toggle raw display
$3$ \( T^{12} - 11 T^{10} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( (T^{6} + 3 T^{5} + 14 T^{4} + \cdots + 9)^{2} \) Copy content Toggle raw display
$7$ \( T^{12} - 6 T^{10} + \cdots + 117649 \) Copy content Toggle raw display
$11$ \( T^{12} + 45 T^{10} + \cdots + 4782969 \) Copy content Toggle raw display
$13$ \( (T^{3} - 4 T^{2} - 12 T + 36)^{4} \) Copy content Toggle raw display
$17$ \( (T^{6} + 9 T^{5} + \cdots + 243)^{2} \) Copy content Toggle raw display
$19$ \( T^{12} - 55 T^{10} + \cdots + 15752961 \) Copy content Toggle raw display
$23$ \( T^{12} - 99 T^{10} + \cdots + 531441 \) Copy content Toggle raw display
$29$ \( (T^{6} + 84 T^{4} + \cdots + 3888)^{2} \) Copy content Toggle raw display
$31$ \( T^{12} + 93 T^{10} + \cdots + 10673289 \) Copy content Toggle raw display
$37$ \( (T^{2} - 3 T + 3)^{6} \) Copy content Toggle raw display
$41$ \( (T^{6} + 84 T^{4} + \cdots + 3888)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} - 48)^{6} \) Copy content Toggle raw display
$47$ \( T^{12} + \cdots + 166858361289 \) Copy content Toggle raw display
$53$ \( (T^{6} + 15 T^{5} + \cdots + 2187)^{2} \) Copy content Toggle raw display
$59$ \( T^{12} - 115 T^{10} + \cdots + 96059601 \) Copy content Toggle raw display
$61$ \( (T^{6} + 17 T^{5} + \cdots + 110889)^{2} \) Copy content Toggle raw display
$67$ \( T^{12} + \cdots + 31381059609 \) Copy content Toggle raw display
$71$ \( (T^{2} + 36)^{6} \) Copy content Toggle raw display
$73$ \( (T^{6} + 3 T^{5} + \cdots + 49923)^{2} \) Copy content Toggle raw display
$79$ \( T^{12} - 51 T^{10} + \cdots + 3418801 \) Copy content Toggle raw display
$83$ \( (T^{6} + 364 T^{4} + \cdots + 419904)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 9 T + 27)^{6} \) Copy content Toggle raw display
$97$ \( (T^{6} + 540 T^{4} + \cdots + 2834352)^{2} \) Copy content Toggle raw display
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