Properties

Label 2016.2.cs.b
Level $2016$
Weight $2$
Character orbit 2016.cs
Analytic conductor $16.098$
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] = [2016,2,Mod(703,2016)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2016, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 0, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2016.703");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2016 = 2^{5} \cdot 3^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2016.cs (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: \(16.0978410475\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(\zeta_{6})\)
Coefficient field: 16.0.2353561680715186176.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 4 x^{15} + 2 x^{14} + 41 x^{12} - 92 x^{11} + 66 x^{10} - 104 x^{9} + 291 x^{8} - 388 x^{7} + \cdots + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{20} \)
Twist minimal: no (minimal twist has level 224)
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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{10} q^{5} + \beta_{15} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{10} q^{5} + \beta_{15} q^{7} + ( - \beta_{15} + \beta_{13} + \cdots + \beta_{2}) q^{11}+ \cdots + ( - 2 \beta_{12} - 2 \beta_{10} + \cdots + 3) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 16 q^{25} - 16 q^{29} - 8 q^{37} - 32 q^{49} + 8 q^{53} - 24 q^{61} - 8 q^{65} - 24 q^{73} - 64 q^{77} - 16 q^{85} + 72 q^{89}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 4 x^{15} + 2 x^{14} + 41 x^{12} - 92 x^{11} + 66 x^{10} - 104 x^{9} + 291 x^{8} - 388 x^{7} + \cdots + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 508009675 \nu^{15} + 17835297016 \nu^{14} - 56517662852 \nu^{13} + 582270848 \nu^{12} + \cdots + 242647661018 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 2306431404 \nu^{15} - 37444380512 \nu^{14} + 95714273392 \nu^{13} + 18886793845 \nu^{12} + \cdots - 394015237814 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 2358518199 \nu^{15} + 7744007704 \nu^{14} - 40220309508 \nu^{13} - 37698238811 \nu^{12} + \cdots + 6869804700 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 32131571 \nu^{15} - 338443886 \nu^{14} + 801340954 \nu^{13} - 7179161 \nu^{12} + \cdots - 4131081209 ) / 137735087 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 10020520327 \nu^{15} - 45461900870 \nu^{14} + 44547235448 \nu^{13} - 12981941615 \nu^{12} + \cdots - 298001022024 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 11175608166 \nu^{15} - 37005033535 \nu^{14} - 2381595084 \nu^{13} - 3936897701 \nu^{12} + \cdots - 67263229296 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 23323681491 \nu^{15} + 83201471534 \nu^{14} - 1607368764 \nu^{13} - 31036989629 \nu^{12} + \cdots - 57823456800 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 26335970486 \nu^{15} - 70391872069 \nu^{14} - 65246694428 \nu^{13} - 2526173993 \nu^{12} + \cdots + 188442633362 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 20583835651 \nu^{15} - 78924515133 \nu^{14} + 24486137978 \nu^{13} + 16944509126 \nu^{12} + \cdots - 137133576807 ) / 10054661351 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 46688945564 \nu^{15} + 219887457941 \nu^{14} - 194424781504 \nu^{13} - 50488884423 \nu^{12} + \cdots + 828605565416 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 48745618686 \nu^{15} + 142220971434 \nu^{14} + 68706464252 \nu^{13} + 38916237257 \nu^{12} + \cdots + 132752818922 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 51918966616 \nu^{15} + 156637786453 \nu^{14} + 91292310268 \nu^{13} - 53280838773 \nu^{12} + \cdots - 435752795150 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 52362709317 \nu^{15} + 193624330268 \nu^{14} - 47845583320 \nu^{13} - 16301340676 \nu^{12} + \cdots + 388645444070 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 62373751860 \nu^{15} + 229249674509 \nu^{14} - 55369811856 \nu^{13} - 7335930805 \nu^{12} + \cdots + 492025369408 ) / 20109322702 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 65140863369 \nu^{15} + 213460867466 \nu^{14} + 34856893632 \nu^{13} - 15203334586 \nu^{12} + \cdots + 26610324654 ) / 20109322702 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 2\beta_{14} - \beta_{13} - \beta_{11} - \beta_{9} - \beta_{7} + 4\beta_{6} - \beta_{4} - \beta_{3} + \beta_{2} - 3\beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{13} - \beta_{11} + \beta_{9} + 3\beta_{7} - 6\beta_{6} - \beta_{4} - \beta_{3} + \beta_{2} + \beta _1 + 6 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{15} + 9 \beta_{14} - 2 \beta_{13} - 2 \beta_{12} - 8 \beta_{11} - 2 \beta_{10} - 5 \beta_{9} + \cdots + 20 ) / 8 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( - 2 \beta_{15} + 6 \beta_{14} - 4 \beta_{13} - 8 \beta_{11} - 2 \beta_{10} - \beta_{9} + \cdots - 10 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( - 14 \beta_{15} + 18 \beta_{14} - 15 \beta_{13} - 10 \beta_{12} - 15 \beta_{11} + 7 \beta_{9} + \cdots + 104 ) / 8 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 7 \beta_{15} + 44 \beta_{14} - 2 \beta_{13} - 20 \beta_{12} - 42 \beta_{11} - 20 \beta_{10} - 32 \beta_{9} + \cdots - 12 ) / 4 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 63 \beta_{15} + 11 \beta_{14} - 111 \beta_{13} - 41 \beta_{11} + 6 \beta_{10} + 68 \beta_{9} + \cdots - 60 \beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 91 \beta_{14} - 24 \beta_{13} - 110 \beta_{12} - 24 \beta_{11} - 51 \beta_{9} - 91 \beta_{8} + \cdots + 166 ) / 4 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 241 \beta_{15} + 177 \beta_{14} - 164 \beta_{13} - 222 \beta_{12} - 326 \beta_{11} - 222 \beta_{10} + \cdots - 1816 ) / 8 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 213 \beta_{15} - 498 \beta_{14} - 487 \beta_{13} + 593 \beta_{11} + 420 \beta_{10} + 512 \beta_{9} + \cdots + 342 \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 1836 \beta_{15} + 296 \beta_{14} + 649 \beta_{13} - 1982 \beta_{12} + 649 \beta_{11} - 2221 \beta_{9} + \cdots - 5232 ) / 8 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( 788 \beta_{15} - 3359 \beta_{14} - 1416 \beta_{13} + 962 \beta_{12} + 2176 \beta_{11} + 962 \beta_{10} + \cdots - 10066 ) / 4 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 533 \beta_{15} - 13907 \beta_{14} - 1923 \beta_{13} + 19683 \beta_{11} + 11418 \beta_{10} + \cdots + 13172 \beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 12180 \beta_{15} - 7760 \beta_{14} + 6223 \beta_{13} - 1340 \beta_{12} + 6223 \beta_{11} - 9634 \beta_{9} + \cdots - 49232 ) / 4 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( - 6773 \beta_{15} - 105043 \beta_{14} - 22984 \beta_{13} + 51026 \beta_{12} + 90770 \beta_{11} + \cdots - 75680 ) / 8 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2016\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(577\) \(1765\) \(1793\)
\(\chi(n)\) \(-1\) \(\beta_{6}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
703.1
0.224274 + 0.447866i
−1.00047 + 1.15497i
2.07391 0.620024i
0.849168 + 0.0870829i
−0.349168 + 0.778942i
−1.57391 + 1.48605i
0.275726 + 0.418160i
1.50047 0.288947i
0.224274 0.447866i
−1.00047 1.15497i
2.07391 + 0.620024i
0.849168 0.0870829i
−0.349168 0.778942i
−1.57391 1.48605i
0.275726 0.418160i
1.50047 + 0.288947i
0 0 0 −3.08101 + 1.77882i 0 −0.912798 + 2.48330i 0 0 0
703.2 0 0 0 −3.08101 + 1.77882i 0 0.912798 2.48330i 0 0 0
703.3 0 0 0 −1.00367 + 0.579471i 0 −0.286555 + 2.63019i 0 0 0
703.4 0 0 0 −1.00367 + 0.579471i 0 0.286555 2.63019i 0 0 0
703.5 0 0 0 1.00367 0.579471i 0 −1.44550 2.21597i 0 0 0
703.6 0 0 0 1.00367 0.579471i 0 1.44550 + 2.21597i 0 0 0
703.7 0 0 0 3.08101 1.77882i 0 −2.64485 + 0.0690906i 0 0 0
703.8 0 0 0 3.08101 1.77882i 0 2.64485 0.0690906i 0 0 0
1279.1 0 0 0 −3.08101 1.77882i 0 −0.912798 2.48330i 0 0 0
1279.2 0 0 0 −3.08101 1.77882i 0 0.912798 + 2.48330i 0 0 0
1279.3 0 0 0 −1.00367 0.579471i 0 −0.286555 2.63019i 0 0 0
1279.4 0 0 0 −1.00367 0.579471i 0 0.286555 + 2.63019i 0 0 0
1279.5 0 0 0 1.00367 + 0.579471i 0 −1.44550 + 2.21597i 0 0 0
1279.6 0 0 0 1.00367 + 0.579471i 0 1.44550 2.21597i 0 0 0
1279.7 0 0 0 3.08101 + 1.77882i 0 −2.64485 0.0690906i 0 0 0
1279.8 0 0 0 3.08101 + 1.77882i 0 2.64485 + 0.0690906i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 703.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner
7.d odd 6 1 inner
28.f even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2016.2.cs.b 16
3.b odd 2 1 224.2.p.a 16
4.b odd 2 1 inner 2016.2.cs.b 16
7.d odd 6 1 inner 2016.2.cs.b 16
12.b even 2 1 224.2.p.a 16
21.c even 2 1 1568.2.p.b 16
21.g even 6 1 224.2.p.a 16
21.g even 6 1 1568.2.f.b 16
21.h odd 6 1 1568.2.f.b 16
21.h odd 6 1 1568.2.p.b 16
24.f even 2 1 448.2.p.e 16
24.h odd 2 1 448.2.p.e 16
28.f even 6 1 inner 2016.2.cs.b 16
84.h odd 2 1 1568.2.p.b 16
84.j odd 6 1 224.2.p.a 16
84.j odd 6 1 1568.2.f.b 16
84.n even 6 1 1568.2.f.b 16
84.n even 6 1 1568.2.p.b 16
168.s odd 6 1 3136.2.f.j 16
168.v even 6 1 3136.2.f.j 16
168.ba even 6 1 448.2.p.e 16
168.ba even 6 1 3136.2.f.j 16
168.be odd 6 1 448.2.p.e 16
168.be odd 6 1 3136.2.f.j 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
224.2.p.a 16 3.b odd 2 1
224.2.p.a 16 12.b even 2 1
224.2.p.a 16 21.g even 6 1
224.2.p.a 16 84.j odd 6 1
448.2.p.e 16 24.f even 2 1
448.2.p.e 16 24.h odd 2 1
448.2.p.e 16 168.ba even 6 1
448.2.p.e 16 168.be odd 6 1
1568.2.f.b 16 21.g even 6 1
1568.2.f.b 16 21.h odd 6 1
1568.2.f.b 16 84.j odd 6 1
1568.2.f.b 16 84.n even 6 1
1568.2.p.b 16 21.c even 2 1
1568.2.p.b 16 21.h odd 6 1
1568.2.p.b 16 84.h odd 2 1
1568.2.p.b 16 84.n even 6 1
2016.2.cs.b 16 1.a even 1 1 trivial
2016.2.cs.b 16 4.b odd 2 1 inner
2016.2.cs.b 16 7.d odd 6 1 inner
2016.2.cs.b 16 28.f even 6 1 inner
3136.2.f.j 16 168.s odd 6 1
3136.2.f.j 16 168.v even 6 1
3136.2.f.j 16 168.ba even 6 1
3136.2.f.j 16 168.be odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2016, [\chi])\):

\( T_{5}^{8} - 14T_{5}^{6} + 179T_{5}^{4} - 238T_{5}^{2} + 289 \) Copy content Toggle raw display
\( T_{11}^{16} - 64 T_{11}^{14} + 2770 T_{11}^{12} - 65248 T_{11}^{10} + 1111795 T_{11}^{8} + \cdots + 352275361 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( (T^{8} - 14 T^{6} + \cdots + 289)^{2} \) Copy content Toggle raw display
$7$ \( T^{16} + 16 T^{14} + \cdots + 5764801 \) Copy content Toggle raw display
$11$ \( T^{16} + \cdots + 352275361 \) Copy content Toggle raw display
$13$ \( (T^{8} + 56 T^{6} + \cdots + 12544)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} - 22 T^{6} + \cdots + 49)^{2} \) Copy content Toggle raw display
$19$ \( T^{16} + 32 T^{14} + \cdots + 1 \) Copy content Toggle raw display
$23$ \( T^{16} - 48 T^{14} + \cdots + 2825761 \) Copy content Toggle raw display
$29$ \( (T^{4} + 4 T^{3} + \cdots + 112)^{4} \) Copy content Toggle raw display
$31$ \( T^{16} + \cdots + 12897917761 \) Copy content Toggle raw display
$37$ \( (T^{8} + 4 T^{7} + \cdots + 113569)^{2} \) Copy content Toggle raw display
$41$ \( (T^{8} + 56 T^{6} + \cdots + 12544)^{2} \) Copy content Toggle raw display
$43$ \( (T^{8} + 192 T^{6} + \cdots + 12544)^{2} \) Copy content Toggle raw display
$47$ \( T^{16} + \cdots + 9597924961 \) Copy content Toggle raw display
$53$ \( (T^{8} - 4 T^{7} + \cdots + 2401)^{2} \) Copy content Toggle raw display
$59$ \( T^{16} + \cdots + 43617904801 \) Copy content Toggle raw display
$61$ \( (T^{8} + 12 T^{7} + \cdots + 4844401)^{2} \) Copy content Toggle raw display
$67$ \( T^{16} + \cdots + 15527402881 \) Copy content Toggle raw display
$71$ \( (T^{8} + 320 T^{6} + \cdots + 6635776)^{2} \) Copy content Toggle raw display
$73$ \( (T^{8} + 12 T^{7} + \cdots + 564001)^{2} \) Copy content Toggle raw display
$79$ \( T^{16} + \cdots + 16748793615841 \) Copy content Toggle raw display
$83$ \( (T^{8} - 416 T^{6} + \cdots + 3211264)^{2} \) Copy content Toggle raw display
$89$ \( (T^{8} - 36 T^{7} + \cdots + 27952369)^{2} \) Copy content Toggle raw display
$97$ \( (T^{8} + 472 T^{6} + \cdots + 118026496)^{2} \) Copy content Toggle raw display
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