Properties

Label 1080.2.k.d
Level $1080$
Weight $2$
Character orbit 1080.k
Analytic conductor $8.624$
Analytic rank $0$
Dimension $20$
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] = [1080,2,Mod(541,1080)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1080, 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("1080.541");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1080 = 2^{3} \cdot 3^{3} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1080.k (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: \(8.62384341830\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\mathbb{Q}[x]/(x^{20} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - x^{18} + 5x^{16} + 28x^{12} - 28x^{10} + 112x^{8} + 320x^{4} - 256x^{2} + 1024 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 2^{8} \)
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 \(1,\beta_1,\ldots,\beta_{19}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{3} q^{2} + \beta_{4} q^{4} - \beta_{6} q^{5} - \beta_{12} q^{7} + \beta_{2} q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{3} q^{2} + \beta_{4} q^{4} - \beta_{6} q^{5} - \beta_{12} q^{7} + \beta_{2} q^{8} - \beta_{8} q^{10} + ( - \beta_{7} + \beta_{2}) q^{11} + (\beta_{19} - \beta_{18} + \cdots - \beta_{4}) q^{13}+ \cdots + (\beta_{17} + 2 \beta_{16} + \cdots + 3 \beta_1) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 2 q^{4}+O(q^{10}) \) Copy content Toggle raw display \( 20 q + 2 q^{4} - 2 q^{10} - 18 q^{16} + 16 q^{22} - 20 q^{25} + 16 q^{28} + 20 q^{31} - 6 q^{34} - 4 q^{40} + 54 q^{46} + 36 q^{49} + 56 q^{52} - 72 q^{58} - 28 q^{64} - 40 q^{73} + 58 q^{76} - 4 q^{79} - 92 q^{82} - 116 q^{88} + 72 q^{94} + 40 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{20} - x^{18} + 5x^{16} + 28x^{12} - 28x^{10} + 112x^{8} + 320x^{4} - 256x^{2} + 1024 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{19} - 3\nu^{17} - \nu^{15} - 20\nu^{13} - 28\nu^{11} - 84\nu^{9} - 448\nu^{5} - 320\nu^{3} - 1024\nu ) / 512 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{19} - \nu^{17} + 5\nu^{15} + 28\nu^{11} - 28\nu^{9} + 112\nu^{7} + 320\nu^{3} - 256\nu ) / 512 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{18} + \nu^{16} - 5\nu^{14} - 28\nu^{10} + 28\nu^{8} - 112\nu^{6} - 320\nu^{2} + 256 ) / 256 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 5 \nu^{18} + 61 \nu^{16} + 63 \nu^{14} + 98 \nu^{12} + 84 \nu^{10} + 1260 \nu^{8} + 280 \nu^{6} + \cdots + 16256 ) / 896 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 17 \nu^{19} + 53 \nu^{17} + 7 \nu^{15} + 84 \nu^{13} - 252 \nu^{11} + 1260 \nu^{9} + \cdots + 15872 \nu ) / 3584 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 19 \nu^{19} - 79 \nu^{17} - 21 \nu^{15} - 252 \nu^{13} + 420 \nu^{11} - 2212 \nu^{9} + \cdots - 31232 \nu ) / 3584 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 17 \nu^{18} + 53 \nu^{16} + 7 \nu^{14} + 84 \nu^{12} - 252 \nu^{10} + 1260 \nu^{8} - 224 \nu^{6} + \cdots + 15872 ) / 1792 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 11 \nu^{18} - 17 \nu^{16} + 21 \nu^{14} - 70 \nu^{12} + 252 \nu^{10} - 364 \nu^{8} + 280 \nu^{6} + \cdots - 4736 ) / 896 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 29 \nu^{18} + 71 \nu^{16} + 77 \nu^{14} + 84 \nu^{12} + 588 \nu^{10} + 1092 \nu^{8} + 1344 \nu^{6} + \cdots + 12032 ) / 1792 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 9 \nu^{19} - 23 \nu^{17} - 21 \nu^{15} - 56 \nu^{13} - 196 \nu^{11} - 420 \nu^{9} - 336 \nu^{7} + \cdots - 5248 \nu ) / 896 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( \nu^{18} - \nu^{16} + \nu^{14} - 4\nu^{12} + 16\nu^{10} - 36\nu^{8} + 32\nu^{6} - 16\nu^{4} + 160\nu^{2} - 384 ) / 64 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 9 \nu^{18} - 23 \nu^{16} - 21 \nu^{14} - 56 \nu^{12} - 196 \nu^{10} - 420 \nu^{8} - 336 \nu^{6} + \cdots - 4352 ) / 448 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 5 \nu^{19} - 23 \nu^{17} - 7 \nu^{15} - 56 \nu^{13} + 98 \nu^{11} - 532 \nu^{9} + 112 \nu^{7} + \cdots - 6592 \nu ) / 448 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 16 \nu^{19} - 37 \nu^{17} - 63 \nu^{15} - 77 \nu^{13} - 364 \nu^{11} - 756 \nu^{9} + \cdots - 9280 \nu ) / 896 \) Copy content Toggle raw display
\(\beta_{16}\)\(=\) \( ( - 31 \nu^{19} - 3 \nu^{17} - 49 \nu^{15} + 14 \nu^{13} - 700 \nu^{11} + 364 \nu^{9} + \cdots + 6016 \nu ) / 1792 \) Copy content Toggle raw display
\(\beta_{17}\)\(=\) \( ( - 9 \nu^{19} + 5 \nu^{17} - 9 \nu^{15} + 12 \nu^{13} - 156 \nu^{11} + 204 \nu^{9} - 256 \nu^{7} + \cdots + 2048 \nu ) / 512 \) Copy content Toggle raw display
\(\beta_{18}\)\(=\) \( ( - 31 \nu^{18} - 3 \nu^{16} - 49 \nu^{14} + 14 \nu^{12} - 700 \nu^{10} + 364 \nu^{8} - 952 \nu^{6} + \cdots + 6016 ) / 896 \) Copy content Toggle raw display
\(\beta_{19}\)\(=\) \( ( -41\nu^{18} + \nu^{16} - 77\nu^{14} - 868\nu^{10} + 252\nu^{8} - 1456\nu^{6} - 1120\nu^{4} - 8640\nu^{2} + 4864 ) / 896 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{19} - \beta_{13} + \beta_{9} - \beta_{8} - \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{16} - \beta_{11} + \beta_{7} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -\beta_{13} + 2\beta_{12} - 2\beta_{10} + 2\beta_{8} - 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -2\beta_{17} + \beta_{16} + \beta_{11} + \beta_{7} + 4\beta_{6} + \beta_{3} - 2\beta_{2} - \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -\beta_{19} + 2\beta_{18} + 2\beta_{12} + 2\beta_{10} - \beta_{9} + 3\beta_{8} - 2\beta_{5} - 3\beta_{4} - 2 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 2 \beta_{16} + 2 \beta_{15} + 2 \beta_{14} - 2 \beta_{11} - 6 \beta_{7} + 2 \beta_{6} + \cdots - 3 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( - 5 \beta_{19} + 6 \beta_{18} + \beta_{13} - 4 \beta_{12} + 4 \beta_{10} + 3 \beta_{9} + \beta_{8} + \cdots - 16 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 6 \beta_{17} + 5 \beta_{16} - 6 \beta_{15} + 10 \beta_{14} - 3 \beta_{11} - 7 \beta_{7} + \cdots - 14 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 8 \beta_{19} - 8 \beta_{18} + 9 \beta_{13} - 10 \beta_{12} - 2 \beta_{10} - 4 \beta_{9} + 18 \beta_{8} + \cdots + 22 ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 14 \beta_{17} - 21 \beta_{16} + 8 \beta_{14} + 11 \beta_{11} - 5 \beta_{7} + 20 \beta_{6} + \cdots + 13 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( 13 \beta_{19} - 6 \beta_{18} - 12 \beta_{13} - 30 \beta_{12} + 2 \beta_{10} - 7 \beta_{9} - 55 \beta_{8} + \cdots + 30 ) / 2 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 24 \beta_{17} - 14 \beta_{16} + 14 \beta_{15} - 26 \beta_{14} - 14 \beta_{11} - 2 \beta_{7} + \cdots + 15 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( \beta_{19} - 22 \beta_{18} + 27 \beta_{13} - 12 \beta_{12} - 36 \beta_{10} - 7 \beta_{9} - 29 \beta_{8} + \cdots - 80 ) / 2 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( - 38 \beta_{17} + 63 \beta_{16} - 42 \beta_{15} - 58 \beta_{14} + 63 \beta_{11} + 107 \beta_{7} + \cdots + 6 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{16}\)\(=\) \( ( 48 \beta_{19} - 104 \beta_{18} + 43 \beta_{13} + 82 \beta_{12} - 6 \beta_{10} - 84 \beta_{9} + \cdots - 126 ) / 2 \) Copy content Toggle raw display
\(\nu^{17}\)\(=\) \( ( - 102 \beta_{17} - 175 \beta_{16} + 112 \beta_{15} - 152 \beta_{14} + 49 \beta_{11} + 33 \beta_{7} + \cdots + 31 \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{18}\)\(=\) \( ( - 81 \beta_{19} + 174 \beta_{18} + 4 \beta_{13} + 86 \beta_{12} + 118 \beta_{10} - 61 \beta_{9} + \cdots - 54 ) / 2 \) Copy content Toggle raw display
\(\nu^{19}\)\(=\) \( ( - 136 \beta_{17} + 142 \beta_{16} - 70 \beta_{15} - 30 \beta_{14} - 114 \beta_{11} - 206 \beta_{7} + \cdots - 163 \beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1080\mathbb{Z}\right)^\times\).

\(n\) \(217\) \(271\) \(541\) \(1001\)
\(\chi(n)\) \(1\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
541.1
−1.34522 + 0.436333i
−1.34522 0.436333i
−1.19357 + 0.758543i
−1.19357 0.758543i
−1.17425 + 0.788128i
−1.17425 0.788128i
−0.662801 + 1.24928i
−0.662801 1.24928i
−0.444539 + 1.34253i
−0.444539 1.34253i
0.444539 + 1.34253i
0.444539 1.34253i
0.662801 + 1.24928i
0.662801 1.24928i
1.17425 + 0.788128i
1.17425 0.788128i
1.19357 + 0.758543i
1.19357 0.758543i
1.34522 + 0.436333i
1.34522 0.436333i
−1.34522 0.436333i 0 1.61923 + 1.17393i 1.00000i 0 −3.61492 −1.66599 2.28571i 0 −0.436333 + 1.34522i
541.2 −1.34522 + 0.436333i 0 1.61923 1.17393i 1.00000i 0 −3.61492 −1.66599 + 2.28571i 0 −0.436333 1.34522i
541.3 −1.19357 0.758543i 0 0.849224 + 1.81075i 1.00000i 0 4.63236 0.359923 2.80543i 0 −0.758543 + 1.19357i
541.4 −1.19357 + 0.758543i 0 0.849224 1.81075i 1.00000i 0 4.63236 0.359923 + 2.80543i 0 −0.758543 1.19357i
541.5 −1.17425 0.788128i 0 0.757708 + 1.85091i 1.00000i 0 2.12726 0.569020 2.77060i 0 0.788128 1.17425i
541.6 −1.17425 + 0.788128i 0 0.757708 1.85091i 1.00000i 0 2.12726 0.569020 + 2.77060i 0 0.788128 + 1.17425i
541.7 −0.662801 1.24928i 0 −1.12139 + 1.65605i 1.00000i 0 −1.52861 2.81212 + 0.303298i 0 1.24928 0.662801i
541.8 −0.662801 + 1.24928i 0 −1.12139 1.65605i 1.00000i 0 −1.52861 2.81212 0.303298i 0 1.24928 + 0.662801i
541.9 −0.444539 1.34253i 0 −1.60477 + 1.19361i 1.00000i 0 −1.61609 2.31584 + 1.62384i 0 −1.34253 + 0.444539i
541.10 −0.444539 + 1.34253i 0 −1.60477 1.19361i 1.00000i 0 −1.61609 2.31584 1.62384i 0 −1.34253 0.444539i
541.11 0.444539 1.34253i 0 −1.60477 1.19361i 1.00000i 0 −1.61609 −2.31584 + 1.62384i 0 −1.34253 0.444539i
541.12 0.444539 + 1.34253i 0 −1.60477 + 1.19361i 1.00000i 0 −1.61609 −2.31584 1.62384i 0 −1.34253 + 0.444539i
541.13 0.662801 1.24928i 0 −1.12139 1.65605i 1.00000i 0 −1.52861 −2.81212 + 0.303298i 0 1.24928 + 0.662801i
541.14 0.662801 + 1.24928i 0 −1.12139 + 1.65605i 1.00000i 0 −1.52861 −2.81212 0.303298i 0 1.24928 0.662801i
541.15 1.17425 0.788128i 0 0.757708 1.85091i 1.00000i 0 2.12726 −0.569020 2.77060i 0 0.788128 + 1.17425i
541.16 1.17425 + 0.788128i 0 0.757708 + 1.85091i 1.00000i 0 2.12726 −0.569020 + 2.77060i 0 0.788128 1.17425i
541.17 1.19357 0.758543i 0 0.849224 1.81075i 1.00000i 0 4.63236 −0.359923 2.80543i 0 −0.758543 1.19357i
541.18 1.19357 + 0.758543i 0 0.849224 + 1.81075i 1.00000i 0 4.63236 −0.359923 + 2.80543i 0 −0.758543 + 1.19357i
541.19 1.34522 0.436333i 0 1.61923 1.17393i 1.00000i 0 −3.61492 1.66599 2.28571i 0 −0.436333 1.34522i
541.20 1.34522 + 0.436333i 0 1.61923 + 1.17393i 1.00000i 0 −3.61492 1.66599 + 2.28571i 0 −0.436333 + 1.34522i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 541.20
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
8.b even 2 1 inner
24.h odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1080.2.k.d 20
3.b odd 2 1 inner 1080.2.k.d 20
4.b odd 2 1 4320.2.k.d 20
8.b even 2 1 inner 1080.2.k.d 20
8.d odd 2 1 4320.2.k.d 20
12.b even 2 1 4320.2.k.d 20
24.f even 2 1 4320.2.k.d 20
24.h odd 2 1 inner 1080.2.k.d 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1080.2.k.d 20 1.a even 1 1 trivial
1080.2.k.d 20 3.b odd 2 1 inner
1080.2.k.d 20 8.b even 2 1 inner
1080.2.k.d 20 24.h odd 2 1 inner
4320.2.k.d 20 4.b odd 2 1
4320.2.k.d 20 8.d odd 2 1
4320.2.k.d 20 12.b even 2 1
4320.2.k.d 20 24.f even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1080, [\chi])\):

\( T_{7}^{5} - 22T_{7}^{3} - 18T_{7}^{2} + 76T_{7} + 88 \) Copy content Toggle raw display
\( T_{17}^{10} - 119T_{17}^{8} + 5122T_{17}^{6} - 94474T_{17}^{4} + 633189T_{17}^{2} - 34839 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} - T^{18} + \cdots + 1024 \) Copy content Toggle raw display
$3$ \( T^{20} \) Copy content Toggle raw display
$5$ \( (T^{2} + 1)^{10} \) Copy content Toggle raw display
$7$ \( (T^{5} - 22 T^{3} + \cdots + 88)^{4} \) Copy content Toggle raw display
$11$ \( (T^{10} + 72 T^{8} + \cdots + 7744)^{2} \) Copy content Toggle raw display
$13$ \( (T^{10} + 80 T^{8} + \cdots + 45504)^{2} \) Copy content Toggle raw display
$17$ \( (T^{10} - 119 T^{8} + \cdots - 34839)^{2} \) Copy content Toggle raw display
$19$ \( (T^{10} + 147 T^{8} + \cdots + 5464351)^{2} \) Copy content Toggle raw display
$23$ \( (T^{10} - 171 T^{8} + \cdots - 21608791)^{2} \) Copy content Toggle raw display
$29$ \( (T^{10} + 216 T^{8} + \cdots + 14400)^{2} \) Copy content Toggle raw display
$31$ \( (T^{5} - 5 T^{4} + \cdots - 4309)^{4} \) Copy content Toggle raw display
$37$ \( (T^{10} + 264 T^{8} + \cdots + 5177344)^{2} \) Copy content Toggle raw display
$41$ \( (T^{10} - 312 T^{8} + \cdots - 288803776)^{2} \) Copy content Toggle raw display
$43$ \( (T^{10} + 284 T^{8} + \cdots + 154840000)^{2} \) Copy content Toggle raw display
$47$ \( (T^{10} - 316 T^{8} + \cdots - 12640000)^{2} \) Copy content Toggle raw display
$53$ \( (T^{10} + 269 T^{8} + \cdots + 38626225)^{2} \) Copy content Toggle raw display
$59$ \( (T^{10} + 280 T^{8} + \cdots + 732736)^{2} \) Copy content Toggle raw display
$61$ \( (T^{10} + 243 T^{8} + \cdots + 1234375)^{2} \) Copy content Toggle raw display
$67$ \( (T^{10} + 312 T^{8} + \cdots + 72806400)^{2} \) Copy content Toggle raw display
$71$ \( (T^{10} - 176 T^{8} + \cdots - 126400)^{2} \) Copy content Toggle raw display
$73$ \( (T^{5} + 10 T^{4} + \cdots + 6696)^{4} \) Copy content Toggle raw display
$79$ \( (T^{5} + T^{4} - 174 T^{3} + \cdots - 745)^{4} \) Copy content Toggle raw display
$83$ \( (T^{10} + 269 T^{8} + \cdots + 268992801)^{2} \) Copy content Toggle raw display
$89$ \( (T^{10} - 284 T^{8} + \cdots - 154840000)^{2} \) Copy content Toggle raw display
$97$ \( (T^{5} - 10 T^{4} + \cdots + 12928)^{4} \) Copy content Toggle raw display
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