Properties

Label 2420.4.a.d
Level $2420$
Weight $4$
Character orbit 2420.a
Self dual yes
Analytic conductor $142.785$
Analytic rank $1$
Dimension $1$
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] = [2420,4,Mod(1,2420)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2420, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2420.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2420 = 2^{2} \cdot 5 \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 2420.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: \(142.784622214\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 20)
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)
 
\(f(q)\) \(=\) \( q + 4 q^{3} + 5 q^{5} + 16 q^{7} - 11 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + 4 q^{3} + 5 q^{5} + 16 q^{7} - 11 q^{9} - 86 q^{13} + 20 q^{15} - 18 q^{17} - 44 q^{19} + 64 q^{21} + 48 q^{23} + 25 q^{25} - 152 q^{27} + 186 q^{29} + 176 q^{31} + 80 q^{35} + 254 q^{37} - 344 q^{39} - 186 q^{41} + 100 q^{43} - 55 q^{45} + 168 q^{47} - 87 q^{49} - 72 q^{51} - 498 q^{53} - 176 q^{57} - 252 q^{59} + 58 q^{61} - 176 q^{63} - 430 q^{65} - 1036 q^{67} + 192 q^{69} + 168 q^{71} - 506 q^{73} + 100 q^{75} - 272 q^{79} - 311 q^{81} - 948 q^{83} - 90 q^{85} + 744 q^{87} - 1014 q^{89} - 1376 q^{91} + 704 q^{93} - 220 q^{95} - 766 q^{97}+O(q^{100}) \) 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
0
0 4.00000 0 5.00000 0 16.0000 0 −11.0000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(5\) \(-1\)
\(11\) \(-1\)

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 2420.4.a.d 1
11.b odd 2 1 20.4.a.a 1
33.d even 2 1 180.4.a.a 1
44.c even 2 1 80.4.a.c 1
55.d odd 2 1 100.4.a.a 1
55.e even 4 2 100.4.c.a 2
77.b even 2 1 980.4.a.c 1
77.h odd 6 2 980.4.i.e 2
77.i even 6 2 980.4.i.n 2
88.b odd 2 1 320.4.a.d 1
88.g even 2 1 320.4.a.k 1
99.g even 6 2 1620.4.i.j 2
99.h odd 6 2 1620.4.i.d 2
132.d odd 2 1 720.4.a.k 1
165.d even 2 1 900.4.a.m 1
165.l odd 4 2 900.4.d.k 2
176.i even 4 2 1280.4.d.c 2
176.l odd 4 2 1280.4.d.n 2
220.g even 2 1 400.4.a.o 1
220.i odd 4 2 400.4.c.j 2
440.c even 2 1 1600.4.a.p 1
440.o odd 2 1 1600.4.a.bl 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
20.4.a.a 1 11.b odd 2 1
80.4.a.c 1 44.c even 2 1
100.4.a.a 1 55.d odd 2 1
100.4.c.a 2 55.e even 4 2
180.4.a.a 1 33.d even 2 1
320.4.a.d 1 88.b odd 2 1
320.4.a.k 1 88.g even 2 1
400.4.a.o 1 220.g even 2 1
400.4.c.j 2 220.i odd 4 2
720.4.a.k 1 132.d odd 2 1
900.4.a.m 1 165.d even 2 1
900.4.d.k 2 165.l odd 4 2
980.4.a.c 1 77.b even 2 1
980.4.i.e 2 77.h odd 6 2
980.4.i.n 2 77.i even 6 2
1280.4.d.c 2 176.i even 4 2
1280.4.d.n 2 176.l odd 4 2
1600.4.a.p 1 440.c even 2 1
1600.4.a.bl 1 440.o odd 2 1
1620.4.i.d 2 99.h odd 6 2
1620.4.i.j 2 99.g even 6 2
2420.4.a.d 1 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(2420))\):

\( T_{3} - 4 \) Copy content Toggle raw display
\( T_{7} - 16 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T - 4 \) Copy content Toggle raw display
$5$ \( T - 5 \) Copy content Toggle raw display
$7$ \( T - 16 \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T + 86 \) Copy content Toggle raw display
$17$ \( T + 18 \) Copy content Toggle raw display
$19$ \( T + 44 \) Copy content Toggle raw display
$23$ \( T - 48 \) Copy content Toggle raw display
$29$ \( T - 186 \) Copy content Toggle raw display
$31$ \( T - 176 \) Copy content Toggle raw display
$37$ \( T - 254 \) Copy content Toggle raw display
$41$ \( T + 186 \) Copy content Toggle raw display
$43$ \( T - 100 \) Copy content Toggle raw display
$47$ \( T - 168 \) Copy content Toggle raw display
$53$ \( T + 498 \) Copy content Toggle raw display
$59$ \( T + 252 \) Copy content Toggle raw display
$61$ \( T - 58 \) Copy content Toggle raw display
$67$ \( T + 1036 \) Copy content Toggle raw display
$71$ \( T - 168 \) Copy content Toggle raw display
$73$ \( T + 506 \) Copy content Toggle raw display
$79$ \( T + 272 \) Copy content Toggle raw display
$83$ \( T + 948 \) Copy content Toggle raw display
$89$ \( T + 1014 \) Copy content Toggle raw display
$97$ \( T + 766 \) Copy content Toggle raw display
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