Properties

Label 810.3.j.b
Level $810$
Weight $3$
Character orbit 810.j
Analytic conductor $22.071$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [810,3,Mod(269,810)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(810, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([1, 3]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("810.269");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 810 = 2 \cdot 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 810.j (of order \(6\), degree \(2\), 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: \(22.0709014132\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\zeta_{24})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 270)
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 primitive root of unity \(\zeta_{24}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{24}^{7} - \zeta_{24}) q^{2} + (2 \zeta_{24}^{4} - 2) q^{4} + ( - 4 \zeta_{24}^{7} + \cdots + 4 \zeta_{24}^{3}) q^{5}+ \cdots + ( - 2 \zeta_{24}^{5} + \cdots + 2 \zeta_{24}) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{24}^{7} - \zeta_{24}) q^{2} + (2 \zeta_{24}^{4} - 2) q^{4} + ( - 4 \zeta_{24}^{7} + \cdots + 4 \zeta_{24}^{3}) q^{5}+ \cdots + (72 \zeta_{24}^{5} + \cdots - 72 \zeta_{24}) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{4}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 8 q^{4} - 56 q^{10} - 16 q^{16} - 24 q^{19} - 96 q^{25} + 32 q^{31} - 128 q^{34} + 56 q^{40} - 208 q^{46} + 288 q^{49} + 40 q^{55} - 380 q^{61} + 64 q^{64} - 44 q^{70} + 24 q^{76} - 396 q^{79} + 448 q^{85} - 1320 q^{91} + 320 q^{94}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/810\mathbb{Z}\right)^\times\).

\(n\) \(487\) \(731\)
\(\chi(n)\) \(-1\) \(1 - \zeta_{24}^{4}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
269.1
−0.258819 0.965926i
0.965926 0.258819i
−0.965926 + 0.258819i
0.258819 + 0.965926i
−0.258819 + 0.965926i
0.965926 + 0.258819i
−0.965926 0.258819i
0.258819 0.965926i
−0.707107 + 1.22474i 0 −1.00000 1.73205i 1.86250 + 4.64016i 0 −9.52628 5.50000i 2.82843 0 −7.00000 1.00000i
269.2 −0.707107 + 1.22474i 0 −1.00000 1.73205i 3.08725 + 3.93305i 0 9.52628 + 5.50000i 2.82843 0 −7.00000 + 1.00000i
269.3 0.707107 1.22474i 0 −1.00000 1.73205i −3.08725 3.93305i 0 9.52628 + 5.50000i −2.82843 0 −7.00000 + 1.00000i
269.4 0.707107 1.22474i 0 −1.00000 1.73205i −1.86250 4.64016i 0 −9.52628 5.50000i −2.82843 0 −7.00000 1.00000i
539.1 −0.707107 1.22474i 0 −1.00000 + 1.73205i 1.86250 4.64016i 0 −9.52628 + 5.50000i 2.82843 0 −7.00000 + 1.00000i
539.2 −0.707107 1.22474i 0 −1.00000 + 1.73205i 3.08725 3.93305i 0 9.52628 5.50000i 2.82843 0 −7.00000 1.00000i
539.3 0.707107 + 1.22474i 0 −1.00000 + 1.73205i −3.08725 + 3.93305i 0 9.52628 5.50000i −2.82843 0 −7.00000 1.00000i
539.4 0.707107 + 1.22474i 0 −1.00000 + 1.73205i −1.86250 + 4.64016i 0 −9.52628 + 5.50000i −2.82843 0 −7.00000 + 1.00000i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 269.4
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
9.c even 3 1 inner
9.d odd 6 1 inner
15.d odd 2 1 inner
45.h odd 6 1 inner
45.j even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 810.3.j.b 8
3.b odd 2 1 inner 810.3.j.b 8
5.b even 2 1 inner 810.3.j.b 8
9.c even 3 1 270.3.b.b 4
9.c even 3 1 inner 810.3.j.b 8
9.d odd 6 1 270.3.b.b 4
9.d odd 6 1 inner 810.3.j.b 8
15.d odd 2 1 inner 810.3.j.b 8
36.f odd 6 1 2160.3.c.j 4
36.h even 6 1 2160.3.c.j 4
45.h odd 6 1 270.3.b.b 4
45.h odd 6 1 inner 810.3.j.b 8
45.j even 6 1 270.3.b.b 4
45.j even 6 1 inner 810.3.j.b 8
45.k odd 12 1 1350.3.d.b 2
45.k odd 12 1 1350.3.d.j 2
45.l even 12 1 1350.3.d.b 2
45.l even 12 1 1350.3.d.j 2
180.n even 6 1 2160.3.c.j 4
180.p odd 6 1 2160.3.c.j 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
270.3.b.b 4 9.c even 3 1
270.3.b.b 4 9.d odd 6 1
270.3.b.b 4 45.h odd 6 1
270.3.b.b 4 45.j even 6 1
810.3.j.b 8 1.a even 1 1 trivial
810.3.j.b 8 3.b odd 2 1 inner
810.3.j.b 8 5.b even 2 1 inner
810.3.j.b 8 9.c even 3 1 inner
810.3.j.b 8 9.d odd 6 1 inner
810.3.j.b 8 15.d odd 2 1 inner
810.3.j.b 8 45.h odd 6 1 inner
810.3.j.b 8 45.j even 6 1 inner
1350.3.d.b 2 45.k odd 12 1
1350.3.d.b 2 45.l even 12 1
1350.3.d.j 2 45.k odd 12 1
1350.3.d.j 2 45.l even 12 1
2160.3.c.j 4 36.f odd 6 1
2160.3.c.j 4 36.h even 6 1
2160.3.c.j 4 180.n even 6 1
2160.3.c.j 4 180.p odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(810, [\chi])\):

\( T_{7}^{4} - 121T_{7}^{2} + 14641 \) Copy content Toggle raw display
\( T_{17}^{2} - 512 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{4} + 2 T^{2} + 4)^{2} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( T^{8} + 48 T^{6} + \cdots + 390625 \) Copy content Toggle raw display
$7$ \( (T^{4} - 121 T^{2} + 14641)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} - 50 T^{2} + 2500)^{2} \) Copy content Toggle raw display
$13$ \( (T^{4} - 225 T^{2} + 50625)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 512)^{4} \) Copy content Toggle raw display
$19$ \( (T + 3)^{8} \) Copy content Toggle raw display
$23$ \( (T^{4} + 338 T^{2} + 114244)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} - 162 T^{2} + 26244)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} - 8 T + 64)^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4225)^{4} \) Copy content Toggle raw display
$41$ \( (T^{4} - 6050 T^{2} + 36602500)^{2} \) Copy content Toggle raw display
$43$ \( (T^{4} - 1024 T^{2} + 1048576)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 3200 T^{2} + 10240000)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} - 162)^{4} \) Copy content Toggle raw display
$59$ \( (T^{4} - 6272 T^{2} + 39337984)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 95 T + 9025)^{4} \) Copy content Toggle raw display
$67$ \( (T^{4} - 361 T^{2} + 130321)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 18)^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} + 14161)^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} + 99 T + 9801)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 11858 T^{2} + 140612164)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 8192)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} - 9025 T^{2} + 81450625)^{2} \) Copy content Toggle raw display
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