Properties

Label 3648.2.g.j
Level $3648$
Weight $2$
Character orbit 3648.g
Analytic conductor $29.129$
Analytic rank $0$
Dimension $16$
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] = [3648,2,Mod(1825,3648)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3648, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3648.1825");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3648 = 2^{6} \cdot 3 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 3648.g (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: no
Analytic conductor: \(29.1294266574\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: 16.0.81094542259068665856.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - x^{14} + 9x^{12} - 8x^{10} + 44x^{8} - 32x^{6} + 144x^{4} - 64x^{2} + 256 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{22} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{5} q^{3} + \beta_{3} q^{5} - \beta_{4} q^{7} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{5} q^{3} + \beta_{3} q^{5} - \beta_{4} q^{7} - q^{9} + (\beta_{10} - 2 \beta_{5}) q^{11} + (\beta_{7} - \beta_{3}) q^{13} + \beta_{6} q^{15} + (\beta_{8} - \beta_1) q^{17} + \beta_{5} q^{19} + \beta_{2} q^{21} - 2 \beta_{6} q^{23} + ( - \beta_{9} + \beta_{8} - \beta_1 - 1) q^{25} - \beta_{5} q^{27} + ( - \beta_{11} - \beta_{7} - \beta_{3}) q^{29} + (\beta_{15} - 2 \beta_{14} + \cdots + \beta_{4}) q^{31}+ \cdots + ( - \beta_{10} + 2 \beta_{5}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 16 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 16 q^{9} + 16 q^{17} - 8 q^{25} + 24 q^{33} + 32 q^{41} + 72 q^{49} - 16 q^{57} + 104 q^{65} + 8 q^{73} + 16 q^{81} + 32 q^{89} + 56 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - x^{14} + 9x^{12} - 8x^{10} + 44x^{8} - 32x^{6} + 144x^{4} - 64x^{2} + 256 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{12} + \nu^{10} - 9\nu^{8} + 8\nu^{6} - 28\nu^{4} + 16\nu^{2} - 80 ) / 16 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{14} + 24\nu^{12} - 36\nu^{10} + 171\nu^{8} - 232\nu^{6} + 1028\nu^{4} - 1248\nu^{2} + 2448 ) / 560 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -2\nu^{14} + 13\nu^{12} - 37\nu^{10} + 27\nu^{8} - 184\nu^{6} - 44\nu^{4} - 816\nu^{2} - 144 ) / 560 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{15} - 45\nu^{13} + 85\nu^{11} - 276\nu^{9} + 204\nu^{7} - 720\nu^{5} + 464\nu^{3} - 1664\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -\nu^{15} + 9\nu^{13} - \nu^{11} + 16\nu^{9} - 12\nu^{7} + 48\nu^{5} - 48\nu^{3} + 128\nu ) / 640 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -5\nu^{15} + \nu^{13} + 23\nu^{11} + 36\nu^{9} + 100\nu^{7} + 16\nu^{5} + 368\nu^{3} - 640\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -5\nu^{14} - 13\nu^{12} - 19\nu^{10} - 34\nu^{8} - 68\nu^{6} - 152\nu^{4} - 304\nu^{2} - 416 ) / 224 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -\nu^{14} + \nu^{12} - \nu^{10} - 4\nu^{6} - 16\nu^{2} ) / 32 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -\nu^{14} + \nu^{12} - 9\nu^{10} + 8\nu^{8} - 44\nu^{6} + 32\nu^{4} - 80\nu^{2} + 64 ) / 32 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -7\nu^{15} + 43\nu^{13} - 67\nu^{11} + 252\nu^{9} - 404\nu^{7} + 1136\nu^{5} - 816\nu^{3} + 2176\nu ) / 640 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 23\nu^{14} - 27\nu^{12} + 163\nu^{10} - 188\nu^{8} + 436\nu^{6} - 544\nu^{4} + 1264\nu^{2} - 864 ) / 560 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( \nu^{15} - \nu^{13} + 9\nu^{11} - 8\nu^{9} + 44\nu^{7} - 32\nu^{5} + 144\nu^{3} + 64\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( -13\nu^{15} - 3\nu^{13} - 53\nu^{11} - 72\nu^{9} + 4\nu^{7} - 176\nu^{5} + 16\nu^{3} - 256\nu ) / 640 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -19\nu^{15} + 15\nu^{13} - 103\nu^{11} + 148\nu^{9} - 516\nu^{7} + 464\nu^{5} - 1648\nu^{3} + 2048\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( -13\nu^{15} - 3\nu^{13} - 69\nu^{11} - 24\nu^{9} - 300\nu^{7} - 272\nu^{5} - 432\nu^{3} - 768\nu ) / 448 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{14} + \beta_{12} - \beta_{6} ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{9} - \beta_{7} - 2\beta_{3} - \beta_{2} ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{15} - \beta_{14} + \beta_{12} + \beta_{10} - 2\beta_{5} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( \beta_{9} - \beta_{7} - 4\beta_{3} + 3\beta_{2} + 2\beta _1 - 8 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -2\beta_{15} - 3\beta_{14} + 3\beta_{13} - 2\beta_{12} + 4\beta_{10} - 7\beta_{5} + 3\beta_{4} ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -3\beta_{11} - 3\beta_{9} - \beta_{8} + \beta_{2} + \beta _1 + 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -8\beta_{15} + 3\beta_{14} + 7\beta_{13} - 4\beta_{12} - 6\beta_{10} + 4\beta_{6} + \beta_{5} - 5\beta_{4} ) / 4 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( -2\beta_{11} - 7\beta_{9} - 2\beta_{8} + 9\beta_{7} + 4\beta_{3} - 9\beta_{2} - 16\beta _1 - 12 ) / 4 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( \beta_{15} + 5\beta_{14} - 6\beta_{13} + \beta_{12} - 5\beta_{10} + 12\beta_{6} - 12\beta_{5} - 8\beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 28\beta_{11} + 3\beta_{9} + 24\beta_{8} + 13\beta_{7} + 4\beta_{3} + \beta_{2} - 18\beta _1 - 32 ) / 4 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 2\beta_{15} + 15\beta_{14} - 27\beta_{13} + 6\beta_{12} + 4\beta_{10} + 28\beta_{6} + 63\beta_{5} + 29\beta_{4} ) / 4 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( -\beta_{11} + 3\beta_{9} + 13\beta_{8} - 28\beta_{7} + 24\beta_{3} - \beta_{2} + 11\beta _1 + 6 ) / 2 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 8\beta_{15} - 31\beta_{14} + 5\beta_{13} - 4\beta_{12} - 2\beta_{10} - 44\beta_{6} + 339\beta_{5} + \beta_{4} ) / 4 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( -6\beta_{11} + 11\beta_{9} - 118\beta_{8} - 53\beta_{7} + 76\beta_{3} + 5\beta_{2} + 32\beta _1 + 28 ) / 4 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 3\beta_{15} - 45\beta_{14} - 30\beta_{13} - 13\beta_{12} - 7\beta_{10} - 108\beta_{6} - 56\beta_{5} - 36\beta_{4} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3648\mathbb{Z}\right)^\times\).

\(n\) \(1217\) \(1921\) \(2053\) \(2623\)
\(\chi(n)\) \(1\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1825.1
1.30439 + 0.546424i
0.929502 + 1.06584i
−1.12988 0.850516i
0.638735 1.26175i
−0.638735 1.26175i
1.12988 0.850516i
−0.929502 + 1.06584i
−1.30439 + 0.546424i
−1.30439 0.546424i
−0.929502 1.06584i
1.12988 + 0.850516i
−0.638735 + 1.26175i
0.638735 + 1.26175i
−1.12988 + 0.850516i
0.929502 1.06584i
1.30439 0.546424i
0 1.00000i 0 3.85529i 0 −0.646349 0 −1.00000 0
1825.2 0 1.00000i 0 2.45262i 0 4.28581 0 −1.00000 0
1825.3 0 1.00000i 0 0.963711i 0 0.277190 0 −1.00000 0
1825.4 0 1.00000i 0 0.438962i 0 −5.20934 0 −1.00000 0
1825.5 0 1.00000i 0 0.438962i 0 5.20934 0 −1.00000 0
1825.6 0 1.00000i 0 0.963711i 0 −0.277190 0 −1.00000 0
1825.7 0 1.00000i 0 2.45262i 0 −4.28581 0 −1.00000 0
1825.8 0 1.00000i 0 3.85529i 0 0.646349 0 −1.00000 0
1825.9 0 1.00000i 0 3.85529i 0 0.646349 0 −1.00000 0
1825.10 0 1.00000i 0 2.45262i 0 −4.28581 0 −1.00000 0
1825.11 0 1.00000i 0 0.963711i 0 −0.277190 0 −1.00000 0
1825.12 0 1.00000i 0 0.438962i 0 5.20934 0 −1.00000 0
1825.13 0 1.00000i 0 0.438962i 0 −5.20934 0 −1.00000 0
1825.14 0 1.00000i 0 0.963711i 0 0.277190 0 −1.00000 0
1825.15 0 1.00000i 0 2.45262i 0 4.28581 0 −1.00000 0
1825.16 0 1.00000i 0 3.85529i 0 −0.646349 0 −1.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1825.16
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner
8.b even 2 1 inner
8.d odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3648.2.g.j 16
4.b odd 2 1 inner 3648.2.g.j 16
8.b even 2 1 inner 3648.2.g.j 16
8.d odd 2 1 inner 3648.2.g.j 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3648.2.g.j 16 1.a even 1 1 trivial
3648.2.g.j 16 4.b odd 2 1 inner
3648.2.g.j 16 8.b even 2 1 inner
3648.2.g.j 16 8.d odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(3648, [\chi])\):

\( T_{5}^{8} + 22T_{5}^{6} + 113T_{5}^{4} + 104T_{5}^{2} + 16 \) Copy content Toggle raw display
\( T_{11}^{8} + 50T_{11}^{6} + 561T_{11}^{4} + 1856T_{11}^{2} + 1600 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( (T^{2} + 1)^{8} \) Copy content Toggle raw display
$5$ \( (T^{8} + 22 T^{6} + \cdots + 16)^{2} \) Copy content Toggle raw display
$7$ \( (T^{8} - 46 T^{6} + \cdots + 16)^{2} \) Copy content Toggle raw display
$11$ \( (T^{8} + 50 T^{6} + \cdots + 1600)^{2} \) Copy content Toggle raw display
$13$ \( (T^{8} + 68 T^{6} + \cdots + 50176)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} - 4 T^{3} - 25 T^{2} + \cdots + 28)^{4} \) Copy content Toggle raw display
$19$ \( (T^{2} + 1)^{8} \) Copy content Toggle raw display
$23$ \( (T^{8} - 88 T^{6} + \cdots + 4096)^{2} \) Copy content Toggle raw display
$29$ \( (T^{8} + 76 T^{6} + \cdots + 43264)^{2} \) Copy content Toggle raw display
$31$ \( (T^{8} - 160 T^{6} + \cdots + 473344)^{2} \) Copy content Toggle raw display
$37$ \( (T^{8} + 256 T^{6} + \cdots + 6553600)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} - 8 T^{3} + \cdots - 320)^{4} \) Copy content Toggle raw display
$43$ \( (T^{8} + 66 T^{6} + \cdots + 6400)^{2} \) Copy content Toggle raw display
$47$ \( (T^{8} - 238 T^{6} + \cdots + 3268864)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + 352 T^{6} + \cdots + 6801664)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} + 492 T^{6} + \cdots + 66064384)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + 262 T^{6} + \cdots + 4946176)^{2} \) Copy content Toggle raw display
$67$ \( (T^{8} + 204 T^{6} + \cdots + 331776)^{2} \) Copy content Toggle raw display
$71$ \( (T^{8} - 180 T^{6} + \cdots + 331776)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} - 2 T^{3} - 67 T^{2} + \cdots + 4)^{4} \) Copy content Toggle raw display
$79$ \( (T^{8} - 284 T^{6} + \cdots + 4129024)^{2} \) Copy content Toggle raw display
$83$ \( (T^{8} + 304 T^{6} + \cdots + 409600)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} - 8 T^{3} + \cdots + 1264)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} - 14 T^{3} + \cdots + 2512)^{4} \) Copy content Toggle raw display
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