Properties

Label 9600.2.a.du
Level $9600$
Weight $2$
Character orbit 9600.a
Self dual yes
Analytic conductor $76.656$
Analytic rank $1$
Dimension $3$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [9600,2,Mod(1,9600)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(9600, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("9600.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 9600 = 2^{7} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9600.a (trivial)

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: yes
Analytic conductor: \(76.6563859404\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.148.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 3x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 1920)
Fricke sign: \(1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{3} + ( - \beta_1 + 1) q^{7} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{3} + ( - \beta_1 + 1) q^{7} + q^{9} + ( - \beta_{2} - 2) q^{11} + (\beta_{2} - 2) q^{13} + (\beta_{2} + 2 \beta_1) q^{17} - 4 q^{19} + ( - \beta_1 + 1) q^{21} - 2 \beta_{2} q^{23} + q^{27} + (2 \beta_{2} + \beta_1 + 1) q^{29} + 2 q^{31} + ( - \beta_{2} - 2) q^{33} + ( - \beta_{2} - 2) q^{37} + (\beta_{2} - 2) q^{39} + (2 \beta_1 + 4) q^{41} - 2 \beta_{2} q^{43} + ( - 2 \beta_1 - 2) q^{47} + (2 \beta_{2} - 2 \beta_1 + 3) q^{49} + (\beta_{2} + 2 \beta_1) q^{51} + (\beta_{2} - 4) q^{53} - 4 q^{57} + ( - \beta_{2} - 2 \beta_1 - 4) q^{59} - 6 q^{61} + ( - \beta_1 + 1) q^{63} + (2 \beta_{2} + 2 \beta_1 - 2) q^{67} - 2 \beta_{2} q^{69} + (2 \beta_{2} + 4 \beta_1 - 4) q^{71} + ( - 2 \beta_{2} + 2 \beta_1 + 2) q^{73} + ( - 2 \beta_{2} + 4 \beta_1 - 4) q^{77} + ( - 4 \beta_1 - 2) q^{79} + q^{81} + ( - 2 \beta_{2} + 4) q^{83} + (2 \beta_{2} + \beta_1 + 1) q^{87} + 6 q^{89} + 2 \beta_{2} q^{91} + 2 q^{93} + ( - \beta_{2} - 2) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 3 q^{3} + 4 q^{7} + 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 3 q + 3 q^{3} + 4 q^{7} + 3 q^{9} - 6 q^{11} - 6 q^{13} - 2 q^{17} - 12 q^{19} + 4 q^{21} + 3 q^{27} + 2 q^{29} + 6 q^{31} - 6 q^{33} - 6 q^{37} - 6 q^{39} + 10 q^{41} - 4 q^{47} + 11 q^{49} - 2 q^{51} - 12 q^{53} - 12 q^{57} - 10 q^{59} - 18 q^{61} + 4 q^{63} - 8 q^{67} - 16 q^{71} + 4 q^{73} - 16 q^{77} - 2 q^{79} + 3 q^{81} + 12 q^{83} + 2 q^{87} + 18 q^{89} + 6 q^{93} - 6 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 3x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu - 1 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( 2\nu^{2} - 2\nu - 4 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{2} + \beta _1 + 5 ) / 2 \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
2.17009
0.311108
−1.48119
0 1.00000 0 0 0 −2.34017 0 1.00000 0
1.2 0 1.00000 0 0 0 1.37778 0 1.00000 0
1.3 0 1.00000 0 0 0 4.96239 0 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(1\)
\(3\) \(-1\)
\(5\) \(-1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 9600.2.a.du 3
4.b odd 2 1 9600.2.a.dp 3
5.b even 2 1 9600.2.a.do 3
5.c odd 4 2 1920.2.f.m 6
8.b even 2 1 9600.2.a.dr 3
8.d odd 2 1 9600.2.a.ds 3
20.d odd 2 1 9600.2.a.dv 3
20.e even 4 2 1920.2.f.n yes 6
40.e odd 2 1 9600.2.a.dq 3
40.f even 2 1 9600.2.a.dt 3
40.i odd 4 2 1920.2.f.p yes 6
40.k even 4 2 1920.2.f.o yes 6
80.i odd 4 2 3840.2.d.bj 6
80.j even 4 2 3840.2.d.bi 6
80.s even 4 2 3840.2.d.bl 6
80.t odd 4 2 3840.2.d.bk 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1920.2.f.m 6 5.c odd 4 2
1920.2.f.n yes 6 20.e even 4 2
1920.2.f.o yes 6 40.k even 4 2
1920.2.f.p yes 6 40.i odd 4 2
3840.2.d.bi 6 80.j even 4 2
3840.2.d.bj 6 80.i odd 4 2
3840.2.d.bk 6 80.t odd 4 2
3840.2.d.bl 6 80.s even 4 2
9600.2.a.do 3 5.b even 2 1
9600.2.a.dp 3 4.b odd 2 1
9600.2.a.dq 3 40.e odd 2 1
9600.2.a.dr 3 8.b even 2 1
9600.2.a.ds 3 8.d odd 2 1
9600.2.a.dt 3 40.f even 2 1
9600.2.a.du 3 1.a even 1 1 trivial
9600.2.a.dv 3 20.d odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(9600))\):

\( T_{7}^{3} - 4T_{7}^{2} - 8T_{7} + 16 \) Copy content Toggle raw display
\( T_{11}^{3} + 6T_{11}^{2} - 4T_{11} - 40 \) Copy content Toggle raw display
\( T_{13}^{3} + 6T_{13}^{2} - 4T_{13} - 8 \) Copy content Toggle raw display
\( T_{17}^{3} + 2T_{17}^{2} - 52T_{17} - 184 \) Copy content Toggle raw display
\( T_{29}^{3} - 2T_{29}^{2} - 60T_{29} + 200 \) Copy content Toggle raw display
\( T_{31} - 2 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( (T - 1)^{3} \) Copy content Toggle raw display
$5$ \( T^{3} \) Copy content Toggle raw display
$7$ \( T^{3} - 4 T^{2} + \cdots + 16 \) Copy content Toggle raw display
$11$ \( T^{3} + 6 T^{2} + \cdots - 40 \) Copy content Toggle raw display
$13$ \( T^{3} + 6 T^{2} + \cdots - 8 \) Copy content Toggle raw display
$17$ \( T^{3} + 2 T^{2} + \cdots - 184 \) Copy content Toggle raw display
$19$ \( (T + 4)^{3} \) Copy content Toggle raw display
$23$ \( T^{3} - 64T - 128 \) Copy content Toggle raw display
$29$ \( T^{3} - 2 T^{2} + \cdots + 200 \) Copy content Toggle raw display
$31$ \( (T - 2)^{3} \) Copy content Toggle raw display
$37$ \( T^{3} + 6 T^{2} + \cdots - 40 \) Copy content Toggle raw display
$41$ \( T^{3} - 10 T^{2} + \cdots + 136 \) Copy content Toggle raw display
$43$ \( T^{3} - 64T - 128 \) Copy content Toggle raw display
$47$ \( T^{3} + 4 T^{2} + \cdots - 64 \) Copy content Toggle raw display
$53$ \( T^{3} + 12 T^{2} + \cdots + 16 \) Copy content Toggle raw display
$59$ \( T^{3} + 10 T^{2} + \cdots + 8 \) Copy content Toggle raw display
$61$ \( (T + 6)^{3} \) Copy content Toggle raw display
$67$ \( T^{3} + 8 T^{2} + \cdots - 256 \) Copy content Toggle raw display
$71$ \( T^{3} + 16 T^{2} + \cdots - 2176 \) Copy content Toggle raw display
$73$ \( T^{3} - 4 T^{2} + \cdots + 832 \) Copy content Toggle raw display
$79$ \( T^{3} + 2 T^{2} + \cdots - 104 \) Copy content Toggle raw display
$83$ \( T^{3} - 12 T^{2} + \cdots + 64 \) Copy content Toggle raw display
$89$ \( (T - 6)^{3} \) Copy content Toggle raw display
$97$ \( T^{3} \) Copy content Toggle raw display
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