Properties

Label 4851.2.a.bl
Level $4851$
Weight $2$
Character orbit 4851.a
Self dual yes
Analytic conductor $38.735$
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] = [4851,2,Mod(1,4851)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4851, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("4851.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 4851 = 3^{2} \cdot 7^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4851.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: \(38.7354300205\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.229.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - 4x - 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 1617)
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.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} + (\beta_{2} + 1) q^{4} + (\beta_{2} - \beta_1 - 1) q^{5} - q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_1 q^{2} + (\beta_{2} + 1) q^{4} + (\beta_{2} - \beta_1 - 1) q^{5} - q^{8} + (\beta_{2} + 2) q^{10} - q^{11} + (\beta_{2} + \beta_1 + 1) q^{13} + ( - 2 \beta_{2} + \beta_1 - 2) q^{16} + ( - 2 \beta_{2} + 2 \beta_1 - 2) q^{17} + ( - \beta_{2} + \beta_1 + 1) q^{19} + ( - 2 \beta_{2} - \beta_1 + 1) q^{20} + \beta_1 q^{22} + ( - 3 \beta_{2} + \beta_1) q^{25} + ( - \beta_{2} - 2 \beta_1 - 4) q^{26} + (3 \beta_{2} + \beta_1 - 1) q^{29} + ( - 2 \beta_{2} - 2 \beta_1 + 2) q^{31} + ( - \beta_{2} + 4 \beta_1 + 1) q^{32} + ( - 2 \beta_{2} + 4 \beta_1 - 4) q^{34} + ( - \beta_{2} - \beta_1 - 3) q^{37} + ( - \beta_{2} - 2) q^{38} + ( - \beta_{2} + \beta_1 + 1) q^{40} + ( - 2 \beta_{2} - 2 \beta_1 + 2) q^{41} + (2 \beta_{2} + 2 \beta_1 - 2) q^{43} + ( - \beta_{2} - 1) q^{44} + (\beta_{2} - 3 \beta_1 - 3) q^{47} + ( - \beta_{2} + 3 \beta_1) q^{50} + (3 \beta_1 + 5) q^{52} + ( - 2 \beta_{2} + 2 \beta_1 - 4) q^{53} + ( - \beta_{2} + \beta_1 + 1) q^{55} + ( - \beta_{2} - 2 \beta_1 - 6) q^{58} + ( - 3 \beta_{2} + 5 \beta_1 - 3) q^{59} + (2 \beta_{2} + 2 \beta_1 + 6) q^{61} + (2 \beta_{2} + 8) q^{62} + ( - 2 \beta_1 - 7) q^{64} + ( - 3 \beta_{2} - \beta_1 - 1) q^{65} + ( - 5 \beta_{2} + 5 \beta_1 + 1) q^{67} + (2 \beta_1 - 6) q^{68} + ( - 6 \beta_{2} + 6 \beta_1 - 2) q^{71} + ( - 5 \beta_{2} - \beta_1 - 1) q^{73} + (\beta_{2} + 4 \beta_1 + 4) q^{74} + (2 \beta_{2} + \beta_1 - 1) q^{76} + ( - 4 \beta_1 - 4) q^{79} + (3 \beta_{2} + 2 \beta_1 - 4) q^{80} + (2 \beta_{2} + 8) q^{82} + (2 \beta_{2} + 2 \beta_1 + 2) q^{83} + (2 \beta_{2} + 2 \beta_1 - 6) q^{85} + ( - 2 \beta_{2} - 8) q^{86} + q^{88} + ( - 2 \beta_{2} + 2 \beta_1 - 6) q^{89} + (3 \beta_{2} + 2 \beta_1 + 8) q^{94} + (3 \beta_{2} - \beta_1 - 5) q^{95} + ( - 2 \beta_{2} - 6 \beta_1 + 2) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 2 q^{4} - 4 q^{5} - 3 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 3 q + 2 q^{4} - 4 q^{5} - 3 q^{8} + 5 q^{10} - 3 q^{11} + 2 q^{13} - 4 q^{16} - 4 q^{17} + 4 q^{19} + 5 q^{20} + 3 q^{25} - 11 q^{26} - 6 q^{29} + 8 q^{31} + 4 q^{32} - 10 q^{34} - 8 q^{37} - 5 q^{38} + 4 q^{40} + 8 q^{41} - 8 q^{43} - 2 q^{44} - 10 q^{47} + q^{50} + 15 q^{52} - 10 q^{53} + 4 q^{55} - 17 q^{58} - 6 q^{59} + 16 q^{61} + 22 q^{62} - 21 q^{64} + 8 q^{67} - 18 q^{68} + 2 q^{73} + 11 q^{74} - 5 q^{76} - 12 q^{79} - 15 q^{80} + 22 q^{82} + 4 q^{83} - 20 q^{85} - 22 q^{86} + 3 q^{88} - 16 q^{89} + 21 q^{94} - 18 q^{95} + 8 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - 4x - 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 3 \) 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
2.11491
−0.254102
−1.86081
−2.11491 0 2.47283 −1.64207 0 0 −1.00000 0 3.47283
1.2 0.254102 0 −1.93543 −3.68133 0 0 −1.00000 0 −0.935432
1.3 1.86081 0 1.46260 1.32340 0 0 −1.00000 0 2.46260
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \(-1\)
\(7\) \(-1\)
\(11\) \(1\)

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 4851.2.a.bl 3
3.b odd 2 1 1617.2.a.r yes 3
7.b odd 2 1 4851.2.a.bm 3
21.c even 2 1 1617.2.a.q 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1617.2.a.q 3 21.c even 2 1
1617.2.a.r yes 3 3.b odd 2 1
4851.2.a.bl 3 1.a even 1 1 trivial
4851.2.a.bm 3 7.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(4851))\):

\( T_{2}^{3} - 4T_{2} + 1 \) Copy content Toggle raw display
\( T_{5}^{3} + 4T_{5}^{2} - T_{5} - 8 \) Copy content Toggle raw display
\( T_{13}^{3} - 2T_{13}^{2} - 11T_{13} - 4 \) Copy content Toggle raw display
\( T_{17}^{3} + 4T_{17}^{2} - 20T_{17} - 16 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} - 4T + 1 \) Copy content Toggle raw display
$3$ \( T^{3} \) Copy content Toggle raw display
$5$ \( T^{3} + 4T^{2} - T - 8 \) Copy content Toggle raw display
$7$ \( T^{3} \) Copy content Toggle raw display
$11$ \( (T + 1)^{3} \) Copy content Toggle raw display
$13$ \( T^{3} - 2 T^{2} - 11 T - 4 \) Copy content Toggle raw display
$17$ \( T^{3} + 4 T^{2} - 20 T - 16 \) Copy content Toggle raw display
$19$ \( T^{3} - 4T^{2} - T + 8 \) Copy content Toggle raw display
$23$ \( T^{3} \) Copy content Toggle raw display
$29$ \( T^{3} + 6 T^{2} - 49 T - 82 \) Copy content Toggle raw display
$31$ \( T^{3} - 8 T^{2} - 28 T + 208 \) Copy content Toggle raw display
$37$ \( T^{3} + 8 T^{2} + 9 T - 2 \) Copy content Toggle raw display
$41$ \( T^{3} - 8 T^{2} - 28 T + 208 \) Copy content Toggle raw display
$43$ \( T^{3} + 8 T^{2} - 28 T - 208 \) Copy content Toggle raw display
$47$ \( T^{3} + 10 T^{2} + T - 124 \) Copy content Toggle raw display
$53$ \( T^{3} + 10 T^{2} + 8 T - 32 \) Copy content Toggle raw display
$59$ \( T^{3} + 6 T^{2} - 91 T + 196 \) Copy content Toggle raw display
$61$ \( T^{3} - 16 T^{2} + 36 T + 16 \) Copy content Toggle raw display
$67$ \( T^{3} - 8 T^{2} - 137 T + 644 \) Copy content Toggle raw display
$71$ \( T^{3} - 228T + 416 \) Copy content Toggle raw display
$73$ \( T^{3} - 2 T^{2} - 151 T - 212 \) Copy content Toggle raw display
$79$ \( T^{3} + 12 T^{2} - 16 T - 128 \) Copy content Toggle raw display
$83$ \( T^{3} - 4 T^{2} - 44 T - 32 \) Copy content Toggle raw display
$89$ \( T^{3} + 16 T^{2} + 60 T + 32 \) Copy content Toggle raw display
$97$ \( T^{3} - 8 T^{2} - 180 T + 1568 \) Copy content Toggle raw display
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