Properties

Label 4800.2.d.o
Level $4800$
Weight $2$
Character orbit 4800.d
Analytic conductor $38.328$
Analytic rank $0$
Dimension $4$
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [4800,2,Mod(1249,4800)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4800, 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("4800.1249");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 4800 = 2^{6} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4800.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: \(38.3281929702\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\zeta_{12})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{31}]\)
Coefficient ring index: \( 2^{5} \)
Twist minimal: no (minimal twist has level 192)
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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{3} + \beta_{3} q^{7} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{3} + \beta_{3} q^{7} + q^{9} + 3 \beta_1 q^{17} - 2 \beta_1 q^{19} + \beta_{3} q^{21} + 2 \beta_{3} q^{23} + q^{27} + \beta_{3} q^{29} - \beta_{2} q^{31} - 2 \beta_{2} q^{37} - 6 q^{41} - 4 q^{43} - 2 \beta_{3} q^{47} - 5 q^{49} + 3 \beta_1 q^{51} + \beta_{2} q^{53} - 2 \beta_1 q^{57} - 6 \beta_1 q^{59} + 2 \beta_{3} q^{61} + \beta_{3} q^{63} + 4 q^{67} + 2 \beta_{3} q^{69} + 2 \beta_{2} q^{71} - \beta_1 q^{73} - 3 \beta_{2} q^{79} + q^{81} + \beta_{3} q^{87} - 6 q^{89} - \beta_{2} q^{93} - \beta_1 q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{3} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 4 q^{3} + 4 q^{9} + 4 q^{27} - 24 q^{41} - 16 q^{43} - 20 q^{49} + 16 q^{67} + 4 q^{81} - 24 q^{89}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring

\(\beta_{1}\)\(=\) \( 2\zeta_{12}^{3} \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( -2\zeta_{12}^{3} + 4\zeta_{12} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 4\zeta_{12}^{2} - 2 \) Copy content Toggle raw display
\(\zeta_{12}\)\(=\) \( ( \beta_{2} + \beta_1 ) / 4 \) Copy content Toggle raw display
\(\zeta_{12}^{2}\)\(=\) \( ( \beta_{3} + 2 ) / 4 \) Copy content Toggle raw display
\(\zeta_{12}^{3}\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/4800\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(901\) \(1601\) \(4351\)
\(\chi(n)\) \(-1\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1249.1
0.866025 0.500000i
−0.866025 + 0.500000i
−0.866025 0.500000i
0.866025 + 0.500000i
0 1.00000 0 0 0 3.46410i 0 1.00000 0
1249.2 0 1.00000 0 0 0 3.46410i 0 1.00000 0
1249.3 0 1.00000 0 0 0 3.46410i 0 1.00000 0
1249.4 0 1.00000 0 0 0 3.46410i 0 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.d odd 2 1 inner
20.d odd 2 1 inner
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 4800.2.d.o 4
4.b odd 2 1 4800.2.d.j 4
5.b even 2 1 4800.2.d.j 4
5.c odd 4 1 192.2.d.a 4
5.c odd 4 1 4800.2.k.j 4
8.b even 2 1 4800.2.d.j 4
8.d odd 2 1 inner 4800.2.d.o 4
15.e even 4 1 576.2.d.b 4
20.d odd 2 1 inner 4800.2.d.o 4
20.e even 4 1 192.2.d.a 4
20.e even 4 1 4800.2.k.j 4
40.e odd 2 1 4800.2.d.j 4
40.f even 2 1 inner 4800.2.d.o 4
40.i odd 4 1 192.2.d.a 4
40.i odd 4 1 4800.2.k.j 4
40.k even 4 1 192.2.d.a 4
40.k even 4 1 4800.2.k.j 4
60.l odd 4 1 576.2.d.b 4
80.i odd 4 1 768.2.a.j 2
80.j even 4 1 768.2.a.j 2
80.s even 4 1 768.2.a.k 2
80.t odd 4 1 768.2.a.k 2
120.q odd 4 1 576.2.d.b 4
120.w even 4 1 576.2.d.b 4
240.z odd 4 1 2304.2.a.u 2
240.bb even 4 1 2304.2.a.s 2
240.bd odd 4 1 2304.2.a.s 2
240.bf even 4 1 2304.2.a.u 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
192.2.d.a 4 5.c odd 4 1
192.2.d.a 4 20.e even 4 1
192.2.d.a 4 40.i odd 4 1
192.2.d.a 4 40.k even 4 1
576.2.d.b 4 15.e even 4 1
576.2.d.b 4 60.l odd 4 1
576.2.d.b 4 120.q odd 4 1
576.2.d.b 4 120.w even 4 1
768.2.a.j 2 80.i odd 4 1
768.2.a.j 2 80.j even 4 1
768.2.a.k 2 80.s even 4 1
768.2.a.k 2 80.t odd 4 1
2304.2.a.s 2 240.bb even 4 1
2304.2.a.s 2 240.bd odd 4 1
2304.2.a.u 2 240.z odd 4 1
2304.2.a.u 2 240.bf even 4 1
4800.2.d.j 4 4.b odd 2 1
4800.2.d.j 4 5.b even 2 1
4800.2.d.j 4 8.b even 2 1
4800.2.d.j 4 40.e odd 2 1
4800.2.d.o 4 1.a even 1 1 trivial
4800.2.d.o 4 8.d odd 2 1 inner
4800.2.d.o 4 20.d odd 2 1 inner
4800.2.d.o 4 40.f even 2 1 inner
4800.2.k.j 4 5.c odd 4 1
4800.2.k.j 4 20.e even 4 1
4800.2.k.j 4 40.i odd 4 1
4800.2.k.j 4 40.k even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(4800, [\chi])\):

\( T_{7}^{2} + 12 \) Copy content Toggle raw display
\( T_{13} \) Copy content Toggle raw display
\( T_{31}^{2} - 12 \) Copy content Toggle raw display
\( T_{43} + 4 \) Copy content Toggle raw display
\( T_{83} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( (T - 1)^{4} \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( (T^{2} + 12)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} \) Copy content Toggle raw display
$13$ \( T^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 16)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} + 48)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} + 12)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} - 12)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} - 48)^{2} \) Copy content Toggle raw display
$41$ \( (T + 6)^{4} \) Copy content Toggle raw display
$43$ \( (T + 4)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} + 48)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} - 12)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 144)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 48)^{2} \) Copy content Toggle raw display
$67$ \( (T - 4)^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} - 48)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} - 108)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} \) Copy content Toggle raw display
$89$ \( (T + 6)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
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