Properties

Label 120.2.d.a
Level $120$
Weight $2$
Character orbit 120.d
Analytic conductor $0.958$
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] = [120,2,Mod(109,120)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(120, 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("120.109");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 120 = 2^{3} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 120.d (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: \(0.958204824255\)
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: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{2} \)
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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{3} q^{2} + q^{3} + ( - \beta_{2} - \beta_1) q^{4} + ( - \beta_{3} + \beta_{2}) q^{5} + \beta_{3} q^{6} + ( - \beta_{4} + \beta_{3} - \beta_1) q^{7} + ( - \beta_{5} + \beta_{4} + \cdots + \beta_1) q^{8}+ \cdots + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{3} q^{2} + q^{3} + ( - \beta_{2} - \beta_1) q^{4} + ( - \beta_{3} + \beta_{2}) q^{5} + \beta_{3} q^{6} + ( - \beta_{4} + \beta_{3} - \beta_1) q^{7} + ( - \beta_{5} + \beta_{4} + \cdots + \beta_1) q^{8}+ \cdots + (\beta_{5} - \beta_{3} + \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - q^{2} + 6 q^{3} + q^{4} - q^{6} - q^{8} + 6 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - q^{2} + 6 q^{3} + q^{4} - q^{6} - q^{8} + 6 q^{9} + q^{10} + q^{12} - 8 q^{13} - 10 q^{14} + q^{16} - q^{18} - 13 q^{20} + 10 q^{22} - q^{24} + 2 q^{25} - 14 q^{26} + 6 q^{27} - 2 q^{28} + q^{30} - 16 q^{31} - 21 q^{32} + 12 q^{34} - 4 q^{35} + q^{36} - 16 q^{37} - 2 q^{38} - 8 q^{39} + 25 q^{40} - 4 q^{41} - 10 q^{42} + 22 q^{44} - 2 q^{46} + q^{48} - 6 q^{49} + 15 q^{50} + 26 q^{52} + 24 q^{53} - q^{54} - 8 q^{55} + 26 q^{56} + 12 q^{58} - 13 q^{60} + 28 q^{62} - 23 q^{64} - 12 q^{65} + 10 q^{66} - 24 q^{68} - 6 q^{70} + 16 q^{71} - q^{72} + 18 q^{74} + 2 q^{75} + 6 q^{76} + 24 q^{77} - 14 q^{78} + 16 q^{79} + 15 q^{80} + 6 q^{81} - 50 q^{82} - 16 q^{83} - 2 q^{84} - 16 q^{85} + 20 q^{86} + 18 q^{88} - 20 q^{89} + q^{90} + 46 q^{92} - 16 q^{93} - 2 q^{94} + 32 q^{95} - 21 q^{96} + 21 q^{98}+O(q^{100}) \) 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

\(\beta_{1}\)\(=\) \( \nu^{3} + 4\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{5} + \nu^{4} + 5\nu^{3} + 3\nu^{2} + 3\nu - 1 ) / 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{5} + \nu^{4} - 5\nu^{3} + 5\nu^{2} - 5\nu + 3 ) / 2 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{5} + \nu^{4} - 7\nu^{3} + 5\nu^{2} - 9\nu + 3 ) / 2 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 3\nu^{5} + \nu^{4} + 17\nu^{3} + 5\nu^{2} + 19\nu + 3 ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{4} - \beta_{3} + \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{5} + \beta_{3} - 2\beta_{2} - \beta _1 - 4 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -2\beta_{4} + 2\beta_{3} - \beta_1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -4\beta_{5} + \beta_{4} - 3\beta_{3} + 10\beta_{2} + 5\beta _1 + 14 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( \beta_{5} + 16\beta_{4} - 17\beta_{3} + 5\beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/120\mathbb{Z}\right)^\times\).

\(n\) \(31\) \(41\) \(61\) \(97\)
\(\chi(n)\) \(1\) \(1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
109.1
1.32132i
1.32132i
2.02852i
2.02852i
0.373087i
0.373087i
−1.34067 0.450129i 1.00000 1.59477 + 1.20695i −0.254102 + 2.22158i −1.34067 0.450129i 2.64265i −1.59477 2.33596i 1.00000 1.34067 2.86402i
109.2 −1.34067 + 0.450129i 1.00000 1.59477 1.20695i −0.254102 2.22158i −1.34067 + 0.450129i 2.64265i −1.59477 + 2.33596i 1.00000 1.34067 + 2.86402i
109.3 −0.321037 1.37729i 1.00000 −1.79387 + 0.884323i 2.11491 + 0.726062i −0.321037 1.37729i 4.05705i 1.79387 + 2.18678i 1.00000 0.321037 3.14594i
109.4 −0.321037 + 1.37729i 1.00000 −1.79387 0.884323i 2.11491 0.726062i −0.321037 + 1.37729i 4.05705i 1.79387 2.18678i 1.00000 0.321037 + 3.14594i
109.5 1.16170 0.806504i 1.00000 0.699104 1.87383i −1.86081 + 1.23992i 1.16170 0.806504i 0.746175i −0.699104 2.74067i 1.00000 −1.16170 + 2.94116i
109.6 1.16170 + 0.806504i 1.00000 0.699104 + 1.87383i −1.86081 1.23992i 1.16170 + 0.806504i 0.746175i −0.699104 + 2.74067i 1.00000 −1.16170 2.94116i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 109.6
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 120.2.d.a 6
3.b odd 2 1 360.2.d.f 6
4.b odd 2 1 480.2.d.a 6
5.b even 2 1 120.2.d.b yes 6
5.c odd 4 2 600.2.k.f 12
8.b even 2 1 120.2.d.b yes 6
8.d odd 2 1 480.2.d.b 6
12.b even 2 1 1440.2.d.e 6
15.d odd 2 1 360.2.d.e 6
15.e even 4 2 1800.2.k.u 12
16.e even 4 2 3840.2.f.l 12
16.f odd 4 2 3840.2.f.m 12
20.d odd 2 1 480.2.d.b 6
20.e even 4 2 2400.2.k.f 12
24.f even 2 1 1440.2.d.f 6
24.h odd 2 1 360.2.d.e 6
40.e odd 2 1 480.2.d.a 6
40.f even 2 1 inner 120.2.d.a 6
40.i odd 4 2 600.2.k.f 12
40.k even 4 2 2400.2.k.f 12
60.h even 2 1 1440.2.d.f 6
60.l odd 4 2 7200.2.k.u 12
80.k odd 4 2 3840.2.f.m 12
80.q even 4 2 3840.2.f.l 12
120.i odd 2 1 360.2.d.f 6
120.m even 2 1 1440.2.d.e 6
120.q odd 4 2 7200.2.k.u 12
120.w even 4 2 1800.2.k.u 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
120.2.d.a 6 1.a even 1 1 trivial
120.2.d.a 6 40.f even 2 1 inner
120.2.d.b yes 6 5.b even 2 1
120.2.d.b yes 6 8.b even 2 1
360.2.d.e 6 15.d odd 2 1
360.2.d.e 6 24.h odd 2 1
360.2.d.f 6 3.b odd 2 1
360.2.d.f 6 120.i odd 2 1
480.2.d.a 6 4.b odd 2 1
480.2.d.a 6 40.e odd 2 1
480.2.d.b 6 8.d odd 2 1
480.2.d.b 6 20.d odd 2 1
600.2.k.f 12 5.c odd 4 2
600.2.k.f 12 40.i odd 4 2
1440.2.d.e 6 12.b even 2 1
1440.2.d.e 6 120.m even 2 1
1440.2.d.f 6 24.f even 2 1
1440.2.d.f 6 60.h even 2 1
1800.2.k.u 12 15.e even 4 2
1800.2.k.u 12 120.w even 4 2
2400.2.k.f 12 20.e even 4 2
2400.2.k.f 12 40.k even 4 2
3840.2.f.l 12 16.e even 4 2
3840.2.f.l 12 80.q even 4 2
3840.2.f.m 12 16.f odd 4 2
3840.2.f.m 12 80.k odd 4 2
7200.2.k.u 12 60.l odd 4 2
7200.2.k.u 12 120.q odd 4 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{13}^{3} + 4T_{13}^{2} - 16T_{13} - 56 \) acting on \(S_{2}^{\mathrm{new}}(120, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} + T^{5} + 4T + 8 \) Copy content Toggle raw display
$3$ \( (T - 1)^{6} \) Copy content Toggle raw display
$5$ \( T^{6} - T^{4} + \cdots + 125 \) Copy content Toggle raw display
$7$ \( T^{6} + 24 T^{4} + \cdots + 64 \) Copy content Toggle raw display
$11$ \( T^{6} + 32 T^{4} + \cdots + 64 \) Copy content Toggle raw display
$13$ \( (T^{3} + 4 T^{2} - 16 T - 56)^{2} \) Copy content Toggle raw display
$17$ \( T^{6} + 36 T^{4} + \cdots + 1024 \) Copy content Toggle raw display
$19$ \( T^{6} + 60 T^{4} + \cdots + 1024 \) Copy content Toggle raw display
$23$ \( T^{6} + 92 T^{4} + \cdots + 16384 \) Copy content Toggle raw display
$29$ \( T^{6} + 108 T^{4} + \cdots + 12544 \) 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
$47$ \( T^{6} + 60 T^{4} + \cdots + 1024 \) Copy content Toggle raw display
$53$ \( (T^{3} - 12 T^{2} + 32 T + 8)^{2} \) Copy content Toggle raw display
$59$ \( T^{6} + 176 T^{4} + \cdots + 179776 \) Copy content Toggle raw display
$61$ \( T^{6} + 176 T^{4} + \cdots + 65536 \) Copy content Toggle raw display
$67$ \( (T^{3} - 64 T - 64)^{2} \) Copy content Toggle raw display
$71$ \( (T^{3} - 8 T^{2} + \cdots + 128)^{2} \) Copy content Toggle raw display
$73$ \( T^{6} + 384 T^{4} + \cdots + 16384 \) Copy content Toggle raw display
$79$ \( (T^{3} - 8 T^{2} - 4 T + 64)^{2} \) Copy content Toggle raw display
$83$ \( (T^{3} + 8 T^{2} + \cdots - 448)^{2} \) Copy content Toggle raw display
$89$ \( (T^{3} + 10 T^{2} + \cdots - 1384)^{2} \) Copy content Toggle raw display
$97$ \( T^{6} + 336 T^{4} + \cdots + 262144 \) Copy content Toggle raw display
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