Properties

Label 864.3.e.e
Level $864$
Weight $3$
Character orbit 864.e
Analytic conductor $23.542$
Analytic rank $0$
Dimension $8$
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] = [864,3,Mod(161,864)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(864, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("864.161");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 864 = 2^{5} \cdot 3^{3} \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 864.e (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: \(23.5422948407\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.2441150464.4
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 14x^{6} + 77x^{4} - 188x^{2} + 196 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{10}\cdot 3^{4} \)
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.

\(f(q)\) \(=\) \( q - \beta_{6} q^{5} + \beta_{4} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{6} q^{5} + \beta_{4} q^{7} + (\beta_{2} + \beta_1) q^{11} + (\beta_{5} - 2) q^{13} + ( - \beta_{7} - \beta_{6}) q^{17} - \beta_{3} q^{19} + ( - 4 \beta_{2} - 3 \beta_1) q^{23} + (3 \beta_{5} - 4) q^{25} + (\beta_{7} - 3 \beta_{6}) q^{29} + ( - \beta_{4} + 3 \beta_{3}) q^{31} + (5 \beta_{2} - 2 \beta_1) q^{35} + (5 \beta_{5} + 4) q^{37} + (\beta_{7} + 3 \beta_{6}) q^{41} + ( - 6 \beta_{4} - 2 \beta_{3}) q^{43} + ( - 6 \beta_{2} + 14 \beta_1) q^{47} + (7 \beta_{5} + 12) q^{49} + ( - \beta_{7} + 12 \beta_{6}) q^{53} + ( - \beta_{4} - 2 \beta_{3}) q^{55} + (18 \beta_{2} - 10 \beta_1) q^{59} + (8 \beta_{5} + 12) q^{61} + (\beta_{7} + 9 \beta_{6}) q^{65} + (6 \beta_{4} + 4 \beta_{3}) q^{67} + ( - 26 \beta_{2} - 13 \beta_1) q^{71} + (11 \beta_{5} - 27) q^{73} - \beta_{6} q^{77} + (10 \beta_{4} - \beta_{3}) q^{79} + (19 \beta_{2} + 33 \beta_1) q^{83} + (11 \beta_{5} - 42) q^{85} + (4 \beta_{7} - 22 \beta_{6}) q^{89} + (6 \beta_{4} - \beta_{3}) q^{91} + ( - 24 \beta_{2} - 29 \beta_1) q^{95} + (8 \beta_{5} - 5) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 16 q^{13} - 32 q^{25} + 32 q^{37} + 96 q^{49} + 96 q^{61} - 216 q^{73} - 336 q^{85} - 40 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 14x^{6} + 77x^{4} - 188x^{2} + 196 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{7} - 14\nu^{5} + 63\nu^{3} - 90\nu ) / 14 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 5\nu^{7} - 56\nu^{5} + 245\nu^{3} - 338\nu ) / 56 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{7} + 7\nu^{5} - 106\nu ) / 7 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -9\nu^{7} + 84\nu^{5} - 245\nu^{3} + 250\nu ) / 56 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -\nu^{6} + 10\nu^{4} - 31\nu^{2} + 22 ) / 2 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( \nu^{6} - 14\nu^{4} + 67\nu^{2} - 106 ) / 4 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 3\nu^{6} - 26\nu^{4} + 105\nu^{2} - 150 ) / 4 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 2\beta_{4} - \beta_{3} + 2\beta_{2} ) / 12 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{7} + \beta_{6} + 2\beta_{5} + 42 ) / 12 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 10\beta_{4} - 2\beta_{3} + 22\beta_{2} - 9\beta_1 ) / 12 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 3\beta_{7} - \beta_{6} + 4\beta_{5} + 42 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 34\beta_{4} - 2\beta_{3} + 142\beta_{2} - 105\beta_1 ) / 12 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 59\beta_{7} - 61\beta_{6} + 34\beta_{5} + 222 ) / 12 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 26\beta_{4} + 8\beta_{3} + 782\beta_{2} - 735\beta_1 ) / 12 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/864\mathbb{Z}\right)^\times\).

\(n\) \(325\) \(353\) \(703\)
\(\chi(n)\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
161.1
1.52833 + 0.500000i
−1.52833 0.500000i
−2.27249 + 0.500000i
2.27249 0.500000i
−2.27249 0.500000i
2.27249 + 0.500000i
1.52833 0.500000i
−1.52833 + 0.500000i
0 0 0 7.37942i 0 −1.26611 0 0 0
161.2 0 0 0 7.37942i 0 1.26611 0 0 0
161.3 0 0 0 1.88259i 0 −10.9726 0 0 0
161.4 0 0 0 1.88259i 0 10.9726 0 0 0
161.5 0 0 0 1.88259i 0 −10.9726 0 0 0
161.6 0 0 0 1.88259i 0 10.9726 0 0 0
161.7 0 0 0 7.37942i 0 −1.26611 0 0 0
161.8 0 0 0 7.37942i 0 1.26611 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 161.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
4.b odd 2 1 inner
12.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 864.3.e.e 8
3.b odd 2 1 inner 864.3.e.e 8
4.b odd 2 1 inner 864.3.e.e 8
8.b even 2 1 1728.3.e.v 8
8.d odd 2 1 1728.3.e.v 8
12.b even 2 1 inner 864.3.e.e 8
24.f even 2 1 1728.3.e.v 8
24.h odd 2 1 1728.3.e.v 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
864.3.e.e 8 1.a even 1 1 trivial
864.3.e.e 8 3.b odd 2 1 inner
864.3.e.e 8 4.b odd 2 1 inner
864.3.e.e 8 12.b even 2 1 inner
1728.3.e.v 8 8.b even 2 1
1728.3.e.v 8 8.d odd 2 1
1728.3.e.v 8 24.f even 2 1
1728.3.e.v 8 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(864, [\chi])\):

\( T_{5}^{4} + 58T_{5}^{2} + 193 \) Copy content Toggle raw display
\( T_{7}^{4} - 122T_{7}^{2} + 193 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} + 58 T^{2} + 193)^{2} \) Copy content Toggle raw display
$7$ \( (T^{4} - 122 T^{2} + 193)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} + 34 T^{2} + 1)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 4 T - 68)^{4} \) Copy content Toggle raw display
$17$ \( (T^{4} + 1080 T^{2} + 250128)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} - 464 T^{2} + 12352)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} + 432 T^{2} + 5184)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 1336 T^{2} + 151312)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 4490 T^{2} + 2733073)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} - 8 T - 1784)^{4} \) Copy content Toggle raw display
$41$ \( (T^{4} + 1648 T^{2} + 605248)^{2} \) Copy content Toggle raw display
$43$ \( (T^{4} - 5480 T^{2} + 7414288)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 3784 T^{2} + 1547536)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 8698 T^{2} + 16119553)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} + 7432 T^{2} + 4477456)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} - 24 T - 4464)^{4} \) Copy content Toggle raw display
$67$ \( (T^{4} - 10280 T^{2} + 16455952)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} + 14872 T^{2} + 22391824)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} + 54 T - 7983)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} - 13304 T^{2} + 892432)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 23922 T^{2} + 29844369)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + 39016 T^{2} + 350701072)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} + 10 T - 4583)^{4} \) Copy content Toggle raw display
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