Properties

Label 360.4.f.f
Level $360$
Weight $4$
Character orbit 360.f
Analytic conductor $21.241$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [360,4,Mod(289,360)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(360, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 1]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("360.289");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 360 = 2^{3} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 360.f (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: \(21.2406876021\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.1485512441856.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 119x^{4} + 625 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{22} \)
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.

\(f(q)\) \(=\) \( q - \beta_{4} q^{5} + \beta_{2} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{4} q^{5} + \beta_{2} q^{7} + \beta_{6} q^{11} + \beta_{7} q^{13} + ( - \beta_{4} - \beta_{3} + \beta_1) q^{17} + (\beta_{5} - 20) q^{19} + (2 \beta_{4} + 2 \beta_{3} - \beta_1) q^{23} + (3 \beta_{7} + \beta_{5} - 2 \beta_{2} - 21) q^{25} + ( - 4 \beta_{6} + 3 \beta_{4} - 3 \beta_{3}) q^{29} + (3 \beta_{5} - 48) q^{31} + ( - 5 \beta_{6} - 2 \beta_{4} + \cdots - 5 \beta_1) q^{35}+ \cdots + (2 \beta_{7} + 24 \beta_{2}) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 160 q^{19} - 168 q^{25} - 384 q^{31} - 456 q^{49} - 64 q^{55} - 1328 q^{61} - 2240 q^{79} - 1296 q^{85} + 1408 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 119x^{4} + 625 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -8\nu^{6} - 1152\nu^{2} ) / 325 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -12\nu^{7} - 100\nu^{5} - 428\nu^{3} - 1400\nu ) / 1625 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -26\nu^{7} - 55\nu^{6} + 50\nu^{5} - 3094\nu^{3} - 4670\nu^{2} + 7200\nu ) / 1625 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 26\nu^{7} - 55\nu^{6} - 50\nu^{5} + 3094\nu^{3} - 4670\nu^{2} - 7200\nu ) / 1625 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 16\nu^{4} + 952 ) / 13 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -76\nu^{7} + 300\nu^{5} - 7044\nu^{3} + 17200\nu ) / 1625 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 116\nu^{7} + 300\nu^{5} + 12804\nu^{3} + 30200\nu ) / 1625 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} - \beta_{6} - 3\beta_{4} + 3\beta_{3} + 3\beta_{2} ) / 32 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 4\beta_{4} + 4\beta_{3} - 11\beta_1 ) / 16 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 3\beta_{7} + 13\beta_{6} + 19\beta_{4} - 19\beta_{3} + 29\beta_{2} ) / 32 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 13\beta_{5} - 952 ) / 16 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -7\beta_{7} + 72\beta_{6} + 86\beta_{4} - 86\beta_{3} - 151\beta_{2} ) / 16 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -288\beta_{4} - 288\beta_{3} + 467\beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -107\beta_{7} - 1547\beta_{6} - 1761\beta_{4} + 1761\beta_{3} - 3201\beta_{2} ) / 32 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/360\mathbb{Z}\right)^\times\).

\(n\) \(181\) \(217\) \(271\) \(281\)
\(\chi(n)\) \(1\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
289.1
−1.08321 + 1.08321i
−1.08321 1.08321i
−2.30795 2.30795i
−2.30795 + 2.30795i
2.30795 + 2.30795i
2.30795 2.30795i
1.08321 1.08321i
1.08321 + 1.08321i
0 0 0 −9.23182 6.30662i 0 1.13228i 0 0 0
289.2 0 0 0 −9.23182 + 6.30662i 0 1.13228i 0 0 0
289.3 0 0 0 −4.33284 10.3066i 0 28.2616i 0 0 0
289.4 0 0 0 −4.33284 + 10.3066i 0 28.2616i 0 0 0
289.5 0 0 0 4.33284 10.3066i 0 28.2616i 0 0 0
289.6 0 0 0 4.33284 + 10.3066i 0 28.2616i 0 0 0
289.7 0 0 0 9.23182 6.30662i 0 1.13228i 0 0 0
289.8 0 0 0 9.23182 + 6.30662i 0 1.13228i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 289.8
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
15.d odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 360.4.f.f 8
3.b odd 2 1 inner 360.4.f.f 8
4.b odd 2 1 720.4.f.n 8
5.b even 2 1 inner 360.4.f.f 8
5.c odd 4 1 1800.4.a.bv 4
5.c odd 4 1 1800.4.a.bw 4
12.b even 2 1 720.4.f.n 8
15.d odd 2 1 inner 360.4.f.f 8
15.e even 4 1 1800.4.a.bv 4
15.e even 4 1 1800.4.a.bw 4
20.d odd 2 1 720.4.f.n 8
60.h even 2 1 720.4.f.n 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
360.4.f.f 8 1.a even 1 1 trivial
360.4.f.f 8 3.b odd 2 1 inner
360.4.f.f 8 5.b even 2 1 inner
360.4.f.f 8 15.d odd 2 1 inner
720.4.f.n 8 4.b odd 2 1
720.4.f.n 8 12.b even 2 1
720.4.f.n 8 20.d odd 2 1
720.4.f.n 8 60.h even 2 1
1800.4.a.bv 4 5.c odd 4 1
1800.4.a.bv 4 15.e even 4 1
1800.4.a.bw 4 5.c odd 4 1
1800.4.a.bw 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 \(S_{4}^{\mathrm{new}}(360, [\chi])\):

\( T_{7}^{4} + 800T_{7}^{2} + 1024 \) Copy content Toggle raw display
\( T_{11}^{4} - 2720T_{11}^{2} + 984064 \) 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
$5$ \( T^{8} + 84 T^{6} + \cdots + 244140625 \) Copy content Toggle raw display
$7$ \( (T^{4} + 800 T^{2} + 1024)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} - 2720 T^{2} + 984064)^{2} \) Copy content Toggle raw display
$13$ \( (T^{4} + 1568 T^{2} + 173056)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} + 840 T^{2} + 17424)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 40 T - 4016)^{4} \) Copy content Toggle raw display
$23$ \( (T^{4} + 2720 T^{2} + 719104)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} - 46496 T^{2} + 523494400)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 96 T - 37440)^{4} \) Copy content Toggle raw display
$37$ \( (T^{4} + 202784 T^{2} + 8701158400)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} - 262784 T^{2} + 2182758400)^{2} \) Copy content Toggle raw display
$43$ \( (T^{4} + 239616 T^{2} + 8493465600)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 73632 T^{2} + 337971456)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 159560 T^{2} + 6359743504)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} - 446880 T^{2} + 3739567104)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 332 T - 255068)^{4} \) Copy content Toggle raw display
$67$ \( (T^{4} + 1324160 T^{2} + 436402929664)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} - 253568 T^{2} + 14880096256)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} + 147968 T^{2} + 5360582656)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} + 560 T - 137984)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 1923200 T^{2} + 281969496064)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} - 958464 T^{2} + 135895449600)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 433280 T^{2} + 1032208384)^{2} \) Copy content Toggle raw display
show more
show less