Properties

Label 2205.2.d.q
Level $2205$
Weight $2$
Character orbit 2205.d
Analytic conductor $17.607$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $8$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2205,2,Mod(1324,2205)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2205, 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("2205.1324");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2205 = 3^{2} \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2205.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: no
Analytic conductor: \(17.6070136457\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.12745506816.4
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 8x^{6} + 55x^{4} + 72x^{2} + 81 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{4} \)
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{2} q^{2} - q^{4} + \beta_{7} q^{5} + \beta_{2} q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{2} q^{2} - q^{4} + \beta_{7} q^{5} + \beta_{2} q^{8} + (\beta_{6} - \beta_{3}) q^{10} + 2 \beta_1 q^{11} + ( - \beta_{6} - 2 \beta_{3}) q^{13} - 5 q^{16} + ( - \beta_{7} - \beta_{4}) q^{17} - 4 \beta_{6} q^{19} - \beta_{7} q^{20} + 2 \beta_{5} q^{22} - 2 \beta_{2} q^{23} + (\beta_{5} + 2) q^{25} + ( - 3 \beta_{7} + 3 \beta_{4}) q^{26} - 2 \beta_1 q^{29} - 4 \beta_{6} q^{31} - 3 \beta_{2} q^{32} - 3 \beta_{6} q^{34} - 2 \beta_{5} q^{37} + (4 \beta_{7} + 4 \beta_{4}) q^{38} + (\beta_{6} - \beta_{3}) q^{40} + (\beta_{7} - \beta_{4}) q^{41} - 2 \beta_1 q^{44} + 6 q^{46} + (2 \beta_{7} + 2 \beta_{4}) q^{47} + (2 \beta_{2} - 3 \beta_1) q^{50} + (\beta_{6} + 2 \beta_{3}) q^{52} - 6 \beta_{2} q^{53} + ( - 8 \beta_{6} - 2 \beta_{3}) q^{55} - 2 \beta_{5} q^{58} + ( - 2 \beta_{7} + 2 \beta_{4}) q^{59} - \beta_{6} q^{61} + (4 \beta_{7} + 4 \beta_{4}) q^{62} - q^{64} + (7 \beta_{2} - 3 \beta_1) q^{65} + (\beta_{7} + \beta_{4}) q^{68} + 2 \beta_1 q^{71} + ( - \beta_{6} - 2 \beta_{3}) q^{73} + 6 \beta_1 q^{74} + 4 \beta_{6} q^{76} - 12 q^{79} - 5 \beta_{7} q^{80} + ( - \beta_{6} - 2 \beta_{3}) q^{82} + ( - 4 \beta_{7} - 4 \beta_{4}) q^{83} + ( - \beta_{5} + 3) q^{85} + 2 \beta_{5} q^{88} + ( - 3 \beta_{7} + 3 \beta_{4}) q^{89} + 2 \beta_{2} q^{92} + 6 \beta_{6} q^{94} + (4 \beta_{2} + 4 \beta_1) q^{95} + ( - \beta_{6} - 2 \beta_{3}) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{4}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 8 q^{4} - 40 q^{16} + 16 q^{25} + 48 q^{46} - 8 q^{64} - 96 q^{79} + 24 q^{85}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 8x^{6} + 55x^{4} + 72x^{2} + 81 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{6} - 148 ) / 55 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 16\nu^{6} + 110\nu^{4} + 880\nu^{2} + 657 ) / 495 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{7} + 11\nu^{5} + 88\nu^{3} + 336\nu ) / 99 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{7} - 5\nu^{5} - 40\nu^{3} + 48\nu ) / 45 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -\nu^{6} - 8\nu^{4} - 46\nu^{2} - 36 ) / 9 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 8\nu^{7} + 55\nu^{5} + 341\nu^{3} + 81\nu ) / 297 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( \nu^{7} + 8\nu^{5} + 55\nu^{3} + 45\nu ) / 27 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{7} + \beta_{6} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{5} + 4\beta_{2} - \beta _1 - 4 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 5\beta_{7} - 11\beta_{6} - 5\beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -8\beta_{5} - 23\beta_{2} - 8\beta _1 - 23 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 24\beta_{7} + 24\beta_{6} + 55\beta_{4} - 31\beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 55\beta _1 + 148 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -368\beta_{7} + 368\beta_{6} - 165\beta_{4} + 203\beta_{3} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2205\mathbb{Z}\right)^\times\).

\(n\) \(442\) \(1081\) \(1226\)
\(\chi(n)\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1324.1
0.581861 1.00781i
1.28897 2.23256i
−1.28897 + 2.23256i
−0.581861 + 1.00781i
1.28897 + 2.23256i
0.581861 + 1.00781i
−0.581861 1.00781i
−1.28897 2.23256i
1.73205i 0 −1.00000 −1.87083 1.22474i 0 0 1.73205i 0 −2.12132 + 3.24037i
1324.2 1.73205i 0 −1.00000 −1.87083 + 1.22474i 0 0 1.73205i 0 2.12132 + 3.24037i
1324.3 1.73205i 0 −1.00000 1.87083 1.22474i 0 0 1.73205i 0 −2.12132 3.24037i
1324.4 1.73205i 0 −1.00000 1.87083 + 1.22474i 0 0 1.73205i 0 2.12132 3.24037i
1324.5 1.73205i 0 −1.00000 −1.87083 1.22474i 0 0 1.73205i 0 2.12132 3.24037i
1324.6 1.73205i 0 −1.00000 −1.87083 + 1.22474i 0 0 1.73205i 0 −2.12132 3.24037i
1324.7 1.73205i 0 −1.00000 1.87083 1.22474i 0 0 1.73205i 0 2.12132 + 3.24037i
1324.8 1.73205i 0 −1.00000 1.87083 + 1.22474i 0 0 1.73205i 0 −2.12132 + 3.24037i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1324.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
7.b odd 2 1 inner
15.d odd 2 1 inner
21.c even 2 1 inner
35.c odd 2 1 inner
105.g even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2205.2.d.q 8
3.b odd 2 1 inner 2205.2.d.q 8
5.b even 2 1 inner 2205.2.d.q 8
7.b odd 2 1 inner 2205.2.d.q 8
15.d odd 2 1 inner 2205.2.d.q 8
21.c even 2 1 inner 2205.2.d.q 8
35.c odd 2 1 inner 2205.2.d.q 8
105.g even 2 1 inner 2205.2.d.q 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2205.2.d.q 8 1.a even 1 1 trivial
2205.2.d.q 8 3.b odd 2 1 inner
2205.2.d.q 8 5.b even 2 1 inner
2205.2.d.q 8 7.b odd 2 1 inner
2205.2.d.q 8 15.d odd 2 1 inner
2205.2.d.q 8 21.c even 2 1 inner
2205.2.d.q 8 35.c odd 2 1 inner
2205.2.d.q 8 105.g even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2205, [\chi])\):

\( T_{2}^{2} + 3 \) Copy content Toggle raw display
\( T_{11}^{2} - 28 \) Copy content Toggle raw display
\( T_{13}^{2} + 42 \) Copy content Toggle raw display
\( T_{19}^{2} - 32 \) Copy content Toggle raw display
\( T_{29}^{2} - 28 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 3)^{4} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} - 4 T^{2} + 25)^{2} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( (T^{2} - 28)^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 42)^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + 6)^{4} \) Copy content Toggle raw display
$19$ \( (T^{2} - 32)^{4} \) Copy content Toggle raw display
$23$ \( (T^{2} + 12)^{4} \) Copy content Toggle raw display
$29$ \( (T^{2} - 28)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} - 32)^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 84)^{4} \) Copy content Toggle raw display
$41$ \( (T^{2} - 14)^{4} \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( (T^{2} + 24)^{4} \) Copy content Toggle raw display
$53$ \( (T^{2} + 108)^{4} \) Copy content Toggle raw display
$59$ \( (T^{2} - 56)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} - 2)^{4} \) Copy content Toggle raw display
$67$ \( T^{8} \) Copy content Toggle raw display
$71$ \( (T^{2} - 28)^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} + 42)^{4} \) Copy content Toggle raw display
$79$ \( (T + 12)^{8} \) Copy content Toggle raw display
$83$ \( (T^{2} + 96)^{4} \) Copy content Toggle raw display
$89$ \( (T^{2} - 126)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 42)^{4} \) Copy content Toggle raw display
show more
show less