Properties

Label 4100.2.d.e
Level $4100$
Weight $2$
Character orbit 4100.d
Analytic conductor $32.739$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [4100,2,Mod(1149,4100)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4100, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("4100.1149");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 4100 = 2^{2} \cdot 5^{2} \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4100.d (of order \(2\), degree \(1\), not 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: \(32.7386648287\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.2732361984.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 13x^{6} + 36x^{4} + 13x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{5} \)
Twist minimal: no (minimal twist has level 820)
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{4} q^{3} + \beta_{5} q^{7} + (\beta_{2} - \beta_1 - 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{4} q^{3} + \beta_{5} q^{7} + (\beta_{2} - \beta_1 - 1) q^{9} - \beta_{3} q^{11} + (\beta_{6} + \beta_{5}) q^{13} + ( - \beta_{6} + \beta_{4}) q^{17} + ( - \beta_{2} + 2 \beta_1) q^{19} + ( - \beta_{3} + 2 \beta_{2} - \beta_1) q^{21} + ( - \beta_{7} + \beta_{6} + \beta_{5}) q^{23} + ( - \beta_{7} - \beta_{5}) q^{27} + ( - \beta_{3} + \beta_1 - 2) q^{29} + ( - \beta_{3} - \beta_{2} + 2 \beta_1) q^{31} + (\beta_{7} + 2 \beta_{6} - \beta_{5}) q^{33} + ( - \beta_{7} - \beta_{6} + \beta_{4}) q^{37} + (\beta_{3} + 2 \beta_{2} - \beta_1) q^{39} + q^{41} + ( - \beta_{7} + \beta_{6} + \cdots - \beta_{4}) q^{43}+ \cdots + (3 \beta_{3} - \beta_{2} - \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 12 q^{9} + 6 q^{19} - 6 q^{21} - 14 q^{29} + 6 q^{31} - 6 q^{39} + 8 q^{41} - 6 q^{49} - 36 q^{51} + 2 q^{59} - 16 q^{61} + 4 q^{71} - 2 q^{79} - 24 q^{81} - 20 q^{89} - 58 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 13x^{6} + 36x^{4} + 13x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{6} + 14\nu^{4} + 46\nu^{2} + 19 ) / 4 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -3\nu^{6} - 38\nu^{4} - 94\nu^{2} - 9 ) / 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -3\nu^{6} - 38\nu^{4} - 98\nu^{2} - 21 ) / 4 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( -\nu^{7} - 13\nu^{5} - 36\nu^{3} - 12\nu \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -3\nu^{7} - 38\nu^{5} - 96\nu^{3} - 11\nu ) / 2 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -7\nu^{7} - 90\nu^{5} - 238\nu^{3} - 49\nu ) / 4 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -5\nu^{7} - 64\nu^{5} - 168\nu^{3} - 39\nu ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{7} + \beta_{5} + \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( -\beta_{3} + \beta_{2} - 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 5\beta_{7} + 4\beta_{6} - 7\beta_{5} - 9\beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 11\beta_{3} - 10\beta_{2} + 3\beta _1 + 21 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -35\beta_{7} - 48\beta_{6} + 63\beta_{5} + 77\beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( -108\beta_{3} + 94\beta_{2} - 38\beta _1 - 175 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 287\beta_{7} + 480\beta_{6} - 579\beta_{5} - 691\beta_{4} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/4100\mathbb{Z}\right)^\times\).

\(n\) \(1477\) \(2051\) \(3901\)
\(\chi(n)\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1149.1
3.04374i
0.328543i
1.82405i
0.548230i
0.548230i
1.82405i
0.328543i
3.04374i
0 2.71519i 0 0 0 3.54915i 0 −4.37228 0
1149.2 0 2.71519i 0 0 0 0.176865i 0 −4.37228 0
1149.3 0 1.27582i 0 0 0 1.60298i 0 1.37228 0
1149.4 0 1.27582i 0 0 0 3.97526i 0 1.37228 0
1149.5 0 1.27582i 0 0 0 3.97526i 0 1.37228 0
1149.6 0 1.27582i 0 0 0 1.60298i 0 1.37228 0
1149.7 0 2.71519i 0 0 0 0.176865i 0 −4.37228 0
1149.8 0 2.71519i 0 0 0 3.54915i 0 −4.37228 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1149.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 4100.2.d.e 8
5.b even 2 1 inner 4100.2.d.e 8
5.c odd 4 1 820.2.a.d 4
5.c odd 4 1 4100.2.a.d 4
15.e even 4 1 7380.2.a.t 4
20.e even 4 1 3280.2.a.be 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
820.2.a.d 4 5.c odd 4 1
3280.2.a.be 4 20.e even 4 1
4100.2.a.d 4 5.c odd 4 1
4100.2.d.e 8 1.a even 1 1 trivial
4100.2.d.e 8 5.b even 2 1 inner
7380.2.a.t 4 15.e even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(4100, [\chi])\):

\( T_{3}^{4} + 9T_{3}^{2} + 12 \) Copy content Toggle raw display
\( T_{7}^{8} + 31T_{7}^{6} + 273T_{7}^{4} + 520T_{7}^{2} + 16 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T^{4} + 9 T^{2} + 12)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} + 31 T^{6} + \cdots + 16 \) Copy content Toggle raw display
$11$ \( (T^{4} - 9 T^{2} + 12)^{2} \) Copy content Toggle raw display
$13$ \( T^{8} + 43 T^{6} + \cdots + 64 \) Copy content Toggle raw display
$17$ \( T^{8} + 34 T^{6} + \cdots + 64 \) Copy content Toggle raw display
$19$ \( (T^{4} - 3 T^{3} + \cdots + 108)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} + 21 T^{2} + 36)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 7 T^{3} + \cdots - 164)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 3 T^{3} - 57 T^{2} + \cdots + 48)^{2} \) Copy content Toggle raw display
$37$ \( T^{8} + 63 T^{6} + \cdots + 41616 \) Copy content Toggle raw display
$41$ \( (T - 1)^{8} \) Copy content Toggle raw display
$43$ \( T^{8} + 115 T^{6} + \cdots + 15376 \) Copy content Toggle raw display
$47$ \( T^{8} + 183 T^{6} + \cdots + 121104 \) Copy content Toggle raw display
$53$ \( T^{8} + 220 T^{6} + \cdots + 861184 \) Copy content Toggle raw display
$59$ \( (T^{4} - T^{3} - 27 T^{2} + \cdots + 16)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} + 8 T^{3} - 45 T^{2} + \cdots - 68)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} + 247 T^{6} + \cdots + 110224 \) Copy content Toggle raw display
$71$ \( (T^{4} - 2 T^{3} + \cdots + 388)^{2} \) Copy content Toggle raw display
$73$ \( T^{8} + 639 T^{6} + \cdots + 439489296 \) Copy content Toggle raw display
$79$ \( (T^{4} + T^{3} + \cdots + 16204)^{2} \) Copy content Toggle raw display
$83$ \( T^{8} + 307 T^{6} + \cdots + 26896 \) Copy content Toggle raw display
$89$ \( (T^{4} + 10 T^{3} + \cdots - 4652)^{2} \) Copy content Toggle raw display
$97$ \( T^{8} + 492 T^{6} + \cdots + 15492096 \) Copy content Toggle raw display
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