Properties

Label 9240.2.a.br
Level $9240$
Weight $2$
Character orbit 9240.a
Self dual yes
Analytic conductor $73.782$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [9240,2,Mod(1,9240)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(9240, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 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("9240.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 9240 = 2^{3} \cdot 3 \cdot 5 \cdot 7 \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9240.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: \(73.7817714677\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{41}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 10 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
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 \(\beta = \frac{1}{2}(1 + \sqrt{41})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{3} - q^{5} + q^{7} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{3} - q^{5} + q^{7} + q^{9} + q^{11} - q^{15} + ( - \beta + 3) q^{17} + ( - \beta + 3) q^{19} + q^{21} + (\beta + 3) q^{23} + q^{25} + q^{27} + ( - \beta + 5) q^{29} + ( - 2 \beta + 2) q^{31} + q^{33} - q^{35} - 4 q^{37} - 2 q^{41} + (\beta + 1) q^{43} - q^{45} + ( - 2 \beta - 2) q^{47} + q^{49} + ( - \beta + 3) q^{51} + (\beta + 7) q^{53} - q^{55} + ( - \beta + 3) q^{57} + (3 \beta - 5) q^{59} + (3 \beta + 1) q^{61} + q^{63} - 2 q^{67} + (\beta + 3) q^{69} + (2 \beta - 2) q^{71} + 2 \beta q^{73} + q^{75} + q^{77} + 4 \beta q^{79} + q^{81} + ( - \beta - 5) q^{83} + (\beta - 3) q^{85} + ( - \beta + 5) q^{87} + (\beta - 11) q^{89} + ( - 2 \beta + 2) q^{93} + (\beta - 3) q^{95} + (3 \beta - 3) q^{97} + q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{3} - 2 q^{5} + 2 q^{7} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 2 q^{3} - 2 q^{5} + 2 q^{7} + 2 q^{9} + 2 q^{11} - 2 q^{15} + 5 q^{17} + 5 q^{19} + 2 q^{21} + 7 q^{23} + 2 q^{25} + 2 q^{27} + 9 q^{29} + 2 q^{31} + 2 q^{33} - 2 q^{35} - 8 q^{37} - 4 q^{41} + 3 q^{43} - 2 q^{45} - 6 q^{47} + 2 q^{49} + 5 q^{51} + 15 q^{53} - 2 q^{55} + 5 q^{57} - 7 q^{59} + 5 q^{61} + 2 q^{63} - 4 q^{67} + 7 q^{69} - 2 q^{71} + 2 q^{73} + 2 q^{75} + 2 q^{77} + 4 q^{79} + 2 q^{81} - 11 q^{83} - 5 q^{85} + 9 q^{87} - 21 q^{89} + 2 q^{93} - 5 q^{95} - 3 q^{97} + 2 q^{99}+O(q^{100}) \) 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
3.70156
−2.70156
0 1.00000 0 −1.00000 0 1.00000 0 1.00000 0
1.2 0 1.00000 0 −1.00000 0 1.00000 0 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(1\)
\(3\) \(-1\)
\(5\) \(1\)
\(7\) \(-1\)
\(11\) \(-1\)

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 9240.2.a.br 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
9240.2.a.br 2 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 \(S_{2}^{\mathrm{new}}(\Gamma_0(9240))\):

\( T_{13} \) Copy content Toggle raw display
\( T_{17}^{2} - 5T_{17} - 4 \) Copy content Toggle raw display
\( T_{19}^{2} - 5T_{19} - 4 \) Copy content Toggle raw display
\( T_{23}^{2} - 7T_{23} + 2 \) Copy content Toggle raw display
\( T_{37} + 4 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( (T - 1)^{2} \) Copy content Toggle raw display
$5$ \( (T + 1)^{2} \) Copy content Toggle raw display
$7$ \( (T - 1)^{2} \) Copy content Toggle raw display
$11$ \( (T - 1)^{2} \) Copy content Toggle raw display
$13$ \( T^{2} \) Copy content Toggle raw display
$17$ \( T^{2} - 5T - 4 \) Copy content Toggle raw display
$19$ \( T^{2} - 5T - 4 \) Copy content Toggle raw display
$23$ \( T^{2} - 7T + 2 \) Copy content Toggle raw display
$29$ \( T^{2} - 9T + 10 \) Copy content Toggle raw display
$31$ \( T^{2} - 2T - 40 \) Copy content Toggle raw display
$37$ \( (T + 4)^{2} \) Copy content Toggle raw display
$41$ \( (T + 2)^{2} \) Copy content Toggle raw display
$43$ \( T^{2} - 3T - 8 \) Copy content Toggle raw display
$47$ \( T^{2} + 6T - 32 \) Copy content Toggle raw display
$53$ \( T^{2} - 15T + 46 \) Copy content Toggle raw display
$59$ \( T^{2} + 7T - 80 \) Copy content Toggle raw display
$61$ \( T^{2} - 5T - 86 \) Copy content Toggle raw display
$67$ \( (T + 2)^{2} \) Copy content Toggle raw display
$71$ \( T^{2} + 2T - 40 \) Copy content Toggle raw display
$73$ \( T^{2} - 2T - 40 \) Copy content Toggle raw display
$79$ \( T^{2} - 4T - 160 \) Copy content Toggle raw display
$83$ \( T^{2} + 11T + 20 \) Copy content Toggle raw display
$89$ \( T^{2} + 21T + 100 \) Copy content Toggle raw display
$97$ \( T^{2} + 3T - 90 \) Copy content Toggle raw display
show more
show less