Properties

Label 1440.2.d.f
Level $1440$
Weight $2$
Character orbit 1440.d
Analytic conductor $11.498$
Analytic rank $0$
Dimension $6$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1440,2,Mod(1009,1440)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1440, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1440.1009");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1440 = 2^{5} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1440.d (of order \(2\), degree \(1\), 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: \(11.4984578911\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: 6.0.839056.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} + 6x^{4} + 8x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{5} \)
Twist minimal: no (minimal twist has level 120)
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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{2} q^{5} - \beta_1 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{2} q^{5} - \beta_1 q^{7} + (\beta_{5} + \beta_1) q^{11} + (\beta_{3} + 1) q^{13} + ( - \beta_{5} - \beta_{4} + \beta_{2}) q^{17} + ( - \beta_{4} + \beta_{2} - \beta_1) q^{19} + ( - 2 \beta_{5} - \beta_{4} + \beta_{2} - \beta_1) q^{23} + (\beta_{5} + \beta_{3}) q^{25} + (2 \beta_{5} + \beta_{4} - \beta_{2}) q^{29} + ( - \beta_{4} - \beta_{3} - \beta_{2} + 3) q^{31} + (\beta_{5} + \beta_{4} - \beta_{3} - \beta_{2} - \beta_1 + 1) q^{35} + ( - \beta_{3} + 3) q^{37} + (2 \beta_{4} + 2 \beta_{3} + 2 \beta_{2}) q^{41} + (2 \beta_{4} + 2 \beta_{2}) q^{43} + ( - \beta_{4} + \beta_{2} - \beta_1) q^{47} + (2 \beta_{4} + 2 \beta_{2} - 1) q^{49} + (\beta_{4} + \beta_{2} + 4) q^{53} + ( - 2 \beta_{5} + \beta_{4} + \beta_{3} + \beta_{2} - \beta_1 + 1) q^{55} + ( - \beta_{5} - 3 \beta_1) q^{59} + (2 \beta_{4} - 2 \beta_{2} - 2 \beta_1) q^{61} + ( - \beta_{5} - 3 \beta_{4} - \beta_{2} - 2 \beta_1 + 2) q^{65} + ( - 2 \beta_{4} - 2 \beta_{2}) q^{67} + (2 \beta_{4} + 2 \beta_{3} + 2 \beta_{2} + 2) q^{71} + ( - 2 \beta_{5} - 4 \beta_{4} + 4 \beta_{2}) q^{73} + 4 q^{77} + (\beta_{4} + \beta_{3} + \beta_{2} - 3) q^{79} + (2 \beta_{3} + 2) q^{83} + ( - 2 \beta_{4} - \beta_{3} + 2 \beta_1 + 3) q^{85} + (2 \beta_{4} - 2 \beta_{3} + 2 \beta_{2} + 4) q^{89} + (2 \beta_{5} + 4 \beta_{4} - 4 \beta_{2} - 2 \beta_1) q^{91} + (\beta_{4} - 2 \beta_{3} - \beta_{2} - \beta_1 + 6) q^{95} + ( - 2 \beta_{5} + 2 \beta_{4} - 2 \beta_{2}) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q+O(q^{10}) \) Copy content Toggle raw display \( 6 q + 8 q^{13} + 2 q^{25} + 16 q^{31} + 4 q^{35} + 16 q^{37} + 4 q^{41} - 6 q^{49} + 24 q^{53} + 8 q^{55} + 12 q^{65} + 16 q^{71} + 24 q^{77} - 16 q^{79} + 16 q^{83} + 16 q^{85} + 20 q^{89} + 32 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} + 6x^{4} + 8x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{5} + 5\nu^{3} + \nu^{2} + 4\nu + 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{4} + 8\nu^{2} + 3 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( -\nu^{5} - 5\nu^{3} + \nu^{2} - 4\nu + 2 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( 2\nu^{5} + 12\nu^{3} + 14\nu \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{4} + \beta_{2} - 4 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{5} + \beta_{4} - \beta_{2} - 3\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -4\beta_{4} + \beta_{3} - 4\beta_{2} + 13 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -5\beta_{5} - 6\beta_{4} + 6\beta_{2} + 11\beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1440\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(641\) \(901\) \(991\)
\(\chi(n)\) \(-1\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1009.1
0.373087i
0.373087i
1.32132i
1.32132i
2.02852i
2.02852i
0 0 0 −1.86081 1.23992i 0 0.746175i 0 0 0
1009.2 0 0 0 −1.86081 + 1.23992i 0 0.746175i 0 0 0
1009.3 0 0 0 −0.254102 2.22158i 0 2.64265i 0 0 0
1009.4 0 0 0 −0.254102 + 2.22158i 0 2.64265i 0 0 0
1009.5 0 0 0 2.11491 0.726062i 0 4.05705i 0 0 0
1009.6 0 0 0 2.11491 + 0.726062i 0 4.05705i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1009.6
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
40.f even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1440.2.d.f 6
3.b odd 2 1 480.2.d.b 6
4.b odd 2 1 360.2.d.e 6
5.b even 2 1 1440.2.d.e 6
5.c odd 4 2 7200.2.k.u 12
8.b even 2 1 1440.2.d.e 6
8.d odd 2 1 360.2.d.f 6
12.b even 2 1 120.2.d.b yes 6
15.d odd 2 1 480.2.d.a 6
15.e even 4 2 2400.2.k.f 12
20.d odd 2 1 360.2.d.f 6
20.e even 4 2 1800.2.k.u 12
24.f even 2 1 120.2.d.a 6
24.h odd 2 1 480.2.d.a 6
40.e odd 2 1 360.2.d.e 6
40.f even 2 1 inner 1440.2.d.f 6
40.i odd 4 2 7200.2.k.u 12
40.k even 4 2 1800.2.k.u 12
48.i odd 4 2 3840.2.f.m 12
48.k even 4 2 3840.2.f.l 12
60.h even 2 1 120.2.d.a 6
60.l odd 4 2 600.2.k.f 12
120.i odd 2 1 480.2.d.b 6
120.m even 2 1 120.2.d.b yes 6
120.q odd 4 2 600.2.k.f 12
120.w even 4 2 2400.2.k.f 12
240.t even 4 2 3840.2.f.l 12
240.bm odd 4 2 3840.2.f.m 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
120.2.d.a 6 24.f even 2 1
120.2.d.a 6 60.h even 2 1
120.2.d.b yes 6 12.b even 2 1
120.2.d.b yes 6 120.m even 2 1
360.2.d.e 6 4.b odd 2 1
360.2.d.e 6 40.e odd 2 1
360.2.d.f 6 8.d odd 2 1
360.2.d.f 6 20.d odd 2 1
480.2.d.a 6 15.d odd 2 1
480.2.d.a 6 24.h odd 2 1
480.2.d.b 6 3.b odd 2 1
480.2.d.b 6 120.i odd 2 1
600.2.k.f 12 60.l odd 4 2
600.2.k.f 12 120.q odd 4 2
1440.2.d.e 6 5.b even 2 1
1440.2.d.e 6 8.b even 2 1
1440.2.d.f 6 1.a even 1 1 trivial
1440.2.d.f 6 40.f even 2 1 inner
1800.2.k.u 12 20.e even 4 2
1800.2.k.u 12 40.k even 4 2
2400.2.k.f 12 15.e even 4 2
2400.2.k.f 12 120.w even 4 2
3840.2.f.l 12 48.k even 4 2
3840.2.f.l 12 240.t even 4 2
3840.2.f.m 12 48.i odd 4 2
3840.2.f.m 12 240.bm odd 4 2
7200.2.k.u 12 5.c odd 4 2
7200.2.k.u 12 40.i odd 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1440, [\chi])\):

\( T_{7}^{6} + 24T_{7}^{4} + 128T_{7}^{2} + 64 \) Copy content Toggle raw display
\( T_{11}^{6} + 32T_{11}^{4} + 96T_{11}^{2} + 64 \) Copy content Toggle raw display
\( T_{13}^{3} - 4T_{13}^{2} - 16T_{13} + 56 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} \) Copy content Toggle raw display
$3$ \( T^{6} \) Copy content Toggle raw display
$5$ \( T^{6} - T^{4} - 8 T^{3} - 5 T^{2} + \cdots + 125 \) Copy content Toggle raw display
$7$ \( T^{6} + 24 T^{4} + 128 T^{2} + \cdots + 64 \) Copy content Toggle raw display
$11$ \( T^{6} + 32 T^{4} + 96 T^{2} + 64 \) Copy content Toggle raw display
$13$ \( (T^{3} - 4 T^{2} - 16 T + 56)^{2} \) Copy content Toggle raw display
$17$ \( T^{6} + 36 T^{4} + 368 T^{2} + \cdots + 1024 \) Copy content Toggle raw display
$19$ \( T^{6} + 60 T^{4} + 512 T^{2} + \cdots + 1024 \) Copy content Toggle raw display
$23$ \( T^{6} + 92 T^{4} + 2304 T^{2} + \cdots + 16384 \) Copy content Toggle raw display
$29$ \( T^{6} + 108 T^{4} + 3120 T^{2} + \cdots + 12544 \) Copy content Toggle raw display
$31$ \( (T^{3} - 8 T^{2} - 4 T + 64)^{2} \) Copy content Toggle raw display
$37$ \( (T^{3} - 8 T^{2} + 8)^{2} \) Copy content Toggle raw display
$41$ \( (T^{3} - 2 T^{2} - 100 T - 56)^{2} \) Copy content Toggle raw display
$43$ \( (T^{3} - 64 T + 64)^{2} \) Copy content Toggle raw display
$47$ \( T^{6} + 60 T^{4} + 512 T^{2} + \cdots + 1024 \) Copy content Toggle raw display
$53$ \( (T^{3} - 12 T^{2} + 32 T + 8)^{2} \) Copy content Toggle raw display
$59$ \( T^{6} + 176 T^{4} + 9888 T^{2} + \cdots + 179776 \) Copy content Toggle raw display
$61$ \( T^{6} + 176 T^{4} + 7168 T^{2} + \cdots + 65536 \) Copy content Toggle raw display
$67$ \( (T^{3} - 64 T - 64)^{2} \) Copy content Toggle raw display
$71$ \( (T^{3} - 8 T^{2} - 80 T + 128)^{2} \) Copy content Toggle raw display
$73$ \( T^{6} + 384 T^{4} + 34560 T^{2} + \cdots + 16384 \) Copy content Toggle raw display
$79$ \( (T^{3} + 8 T^{2} - 4 T - 64)^{2} \) Copy content Toggle raw display
$83$ \( (T^{3} - 8 T^{2} - 64 T + 448)^{2} \) Copy content Toggle raw display
$89$ \( (T^{3} - 10 T^{2} - 164 T + 1384)^{2} \) Copy content Toggle raw display
$97$ \( T^{6} + 336 T^{4} + 28416 T^{2} + \cdots + 262144 \) Copy content Toggle raw display
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