Properties

Label 2520.2.bi.m
Level $2520$
Weight $2$
Character orbit 2520.bi
Analytic conductor $20.122$
Analytic rank $0$
Dimension $6$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2520,2,Mod(361,2520)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2520, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0, 4]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2520.361");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2520 = 2^{3} \cdot 3^{2} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2520.bi (of order \(3\), degree \(2\), 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: \(20.1223013094\)
Analytic rank: \(0\)
Dimension: \(6\)
Relative dimension: \(3\) over \(\Q(\zeta_{3})\)
Coefficient field: 6.0.4406832.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{5} + 6x^{4} + 7x^{3} + 24x^{2} + 5x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_{4} - 1) q^{5} + ( - \beta_{5} - \beta_{2}) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{4} - 1) q^{5} + ( - \beta_{5} - \beta_{2}) q^{7} + (\beta_{5} + \beta_{4}) q^{11} + ( - \beta_{3} - 2 \beta_{2}) q^{13} + ( - \beta_{4} + \beta_{2} - \beta_1) q^{17} + (\beta_{5} - \beta_{4} - \beta_{3} + \cdots + 1) q^{19}+ \cdots + ( - 5 \beta_{3} - \beta_{2} - 4) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 3 q^{5} - q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 3 q^{5} - q^{7} + 2 q^{11} - 2 q^{13} - 2 q^{17} + 3 q^{19} + 2 q^{23} - 3 q^{25} + 16 q^{29} - 5 q^{31} - q^{35} + 9 q^{37} - 28 q^{41} - 18 q^{43} + 6 q^{47} - 3 q^{49} - 4 q^{55} + 4 q^{59} - 10 q^{61} + q^{65} + 13 q^{67} - 16 q^{71} - 9 q^{73} + 18 q^{77} + 17 q^{79} - 12 q^{83} + 4 q^{85} + 6 q^{89} + 39 q^{91} + 3 q^{95} - 16 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} - x^{5} + 6x^{4} + 7x^{3} + 24x^{2} + 5x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{5} + 6\nu^{4} - 36\nu^{3} + 24\nu^{2} + 5\nu - 30 ) / 149 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -6\nu^{5} + 36\nu^{4} - 67\nu^{3} + 144\nu^{2} + 30\nu + 416 ) / 149 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 30\nu^{5} - 31\nu^{4} + 186\nu^{3} + 174\nu^{2} + 744\nu + 155 ) / 149 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 89\nu^{5} - 87\nu^{4} + 522\nu^{3} + 695\nu^{2} + 2088\nu + 435 ) / 149 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{5} - 3\beta_{4} - \beta_{2} + \beta_1 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} - 6\beta_{2} - 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( -6\beta_{5} + 19\beta_{4} + 6\beta_{3} - 12\beta _1 - 19 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( -12\beta_{5} + 42\beta_{4} + 43\beta_{2} - 43\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2520\mathbb{Z}\right)^\times\).

\(n\) \(281\) \(631\) \(1081\) \(1261\) \(2017\)
\(\chi(n)\) \(1\) \(1\) \(-1 + \beta_{4}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
361.1
1.43310 + 2.48220i
−0.105378 0.182520i
−0.827721 1.43366i
1.43310 2.48220i
−0.105378 + 0.182520i
−0.827721 + 1.43366i
0 0 0 −0.500000 0.866025i 0 −1.69175 2.03420i 0 0 0
361.2 0 0 0 −0.500000 0.866025i 0 −1.16166 + 2.37709i 0 0 0
361.3 0 0 0 −0.500000 0.866025i 0 2.35341 1.20891i 0 0 0
1801.1 0 0 0 −0.500000 + 0.866025i 0 −1.69175 + 2.03420i 0 0 0
1801.2 0 0 0 −0.500000 + 0.866025i 0 −1.16166 2.37709i 0 0 0
1801.3 0 0 0 −0.500000 + 0.866025i 0 2.35341 + 1.20891i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 361.3
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2520.2.bi.m 6
3.b odd 2 1 2520.2.bi.p yes 6
7.c even 3 1 inner 2520.2.bi.m 6
21.h odd 6 1 2520.2.bi.p yes 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2520.2.bi.m 6 1.a even 1 1 trivial
2520.2.bi.m 6 7.c even 3 1 inner
2520.2.bi.p yes 6 3.b odd 2 1
2520.2.bi.p yes 6 21.h odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2520, [\chi])\):

\( T_{11}^{6} - 2T_{11}^{5} + 10T_{11}^{4} + 16T_{11}^{3} + 32T_{11}^{2} + 12T_{11} + 4 \) Copy content Toggle raw display
\( T_{13}^{3} + T_{13}^{2} - 19T_{13} - 37 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} \) Copy content Toggle raw display
$3$ \( T^{6} \) Copy content Toggle raw display
$5$ \( (T^{2} + T + 1)^{3} \) Copy content Toggle raw display
$7$ \( T^{6} + T^{5} + \cdots + 343 \) Copy content Toggle raw display
$11$ \( T^{6} - 2 T^{5} + \cdots + 4 \) Copy content Toggle raw display
$13$ \( (T^{3} + T^{2} - 19 T - 37)^{2} \) Copy content Toggle raw display
$17$ \( T^{6} + 2 T^{5} + \cdots + 36 \) Copy content Toggle raw display
$19$ \( T^{6} - 3 T^{5} + \cdots + 9 \) Copy content Toggle raw display
$23$ \( T^{6} - 2 T^{5} + \cdots + 36 \) Copy content Toggle raw display
$29$ \( (T^{3} - 8 T^{2} + 14 T - 6)^{2} \) Copy content Toggle raw display
$31$ \( T^{6} + 5 T^{5} + \cdots + 81 \) Copy content Toggle raw display
$37$ \( T^{6} - 9 T^{5} + \cdots + 12321 \) Copy content Toggle raw display
$41$ \( (T^{3} + 14 T^{2} + \cdots + 74)^{2} \) Copy content Toggle raw display
$43$ \( (T^{3} + 9 T^{2} - 17 T - 99)^{2} \) Copy content Toggle raw display
$47$ \( T^{6} - 6 T^{5} + \cdots + 576 \) Copy content Toggle raw display
$53$ \( T^{6} + 176 T^{4} + \cdots + 2304 \) Copy content Toggle raw display
$59$ \( T^{6} - 4 T^{5} + \cdots + 343396 \) Copy content Toggle raw display
$61$ \( T^{6} + 10 T^{5} + \cdots + 16 \) Copy content Toggle raw display
$67$ \( T^{6} - 13 T^{5} + \cdots + 259081 \) Copy content Toggle raw display
$71$ \( (T^{3} + 8 T^{2} + \cdots + 162)^{2} \) Copy content Toggle raw display
$73$ \( T^{6} + 9 T^{5} + \cdots + 461041 \) Copy content Toggle raw display
$79$ \( T^{6} - 17 T^{5} + \cdots + 9801 \) Copy content Toggle raw display
$83$ \( (T^{3} + 6 T^{2} + \cdots - 162)^{2} \) Copy content Toggle raw display
$89$ \( T^{6} - 6 T^{5} + \cdots + 42436 \) Copy content Toggle raw display
$97$ \( (T^{3} + 8 T^{2} + \cdots + 396)^{2} \) Copy content Toggle raw display
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