Properties

Label 585.2.b.f
Level $585$
Weight $2$
Character orbit 585.b
Analytic conductor $4.671$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [585,2,Mod(181,585)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(585, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 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("585.181");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 585 = 3^{2} \cdot 5 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 585.b (of order \(2\), degree \(1\), 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: \(4.67124851824\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{13})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 7x^{2} + 9 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: yes
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.

\(f(q)\) \(=\) \( q - 2 \beta_1 q^{2} - 2 q^{4} + \beta_1 q^{5} - \beta_{2} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - 2 \beta_1 q^{2} - 2 q^{4} + \beta_1 q^{5} - \beta_{2} q^{7} + 2 q^{10} + 3 \beta_1 q^{11} - \beta_{2} q^{13} - 2 \beta_{3} q^{14} - 4 q^{16} + \beta_{3} q^{17} - 2 \beta_{2} q^{19} - 2 \beta_1 q^{20} + 6 q^{22} - \beta_{3} q^{23} - q^{25} - 2 \beta_{3} q^{26} + 2 \beta_{2} q^{28} - 2 \beta_{3} q^{29} + 2 \beta_{2} q^{31} + 8 \beta_1 q^{32} - 2 \beta_{2} q^{34} + \beta_{3} q^{35} - \beta_{2} q^{37} - 4 \beta_{3} q^{38} - 11 \beta_1 q^{41} - 4 q^{43} - 6 \beta_1 q^{44} + 2 \beta_{2} q^{46} - 4 \beta_1 q^{47} - 6 q^{49} + 2 \beta_1 q^{50} + 2 \beta_{2} q^{52} + 3 \beta_{3} q^{53} - 3 q^{55} + 4 \beta_{2} q^{58} + 12 \beta_1 q^{59} + 13 q^{61} + 4 \beta_{3} q^{62} + 8 q^{64} + \beta_{3} q^{65} - 2 \beta_{3} q^{68} - 2 \beta_{2} q^{70} + 5 \beta_1 q^{71} + 2 \beta_{2} q^{73} - 2 \beta_{3} q^{74} + 4 \beta_{2} q^{76} + 3 \beta_{3} q^{77} + 13 q^{79} - 4 \beta_1 q^{80} - 22 q^{82} - 6 \beta_1 q^{83} + \beta_{2} q^{85} + 8 \beta_1 q^{86} - 3 \beta_1 q^{89} - 13 q^{91} + 2 \beta_{3} q^{92} - 8 q^{94} + 2 \beta_{3} q^{95} - \beta_{2} q^{97} + 12 \beta_1 q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 8 q^{4}+O(q^{10}) \) Copy content Toggle raw display \( 4 q - 8 q^{4} + 8 q^{10} - 16 q^{16} + 24 q^{22} - 4 q^{25} - 16 q^{43} - 24 q^{49} - 12 q^{55} + 52 q^{61} + 32 q^{64} + 52 q^{79} - 88 q^{82} - 52 q^{91} - 32 q^{94}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 7x^{2} + 9 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{3} + 4\nu ) / 3 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{3} + 10\nu ) / 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{2} + 7 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} - \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} - 7 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -2\beta_{2} + 5\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/585\mathbb{Z}\right)^\times\).

\(n\) \(326\) \(352\) \(496\)
\(\chi(n)\) \(1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
181.1
1.30278i
2.30278i
2.30278i
1.30278i
2.00000i 0 −2.00000 1.00000i 0 3.60555i 0 0 2.00000
181.2 2.00000i 0 −2.00000 1.00000i 0 3.60555i 0 0 2.00000
181.3 2.00000i 0 −2.00000 1.00000i 0 3.60555i 0 0 2.00000
181.4 2.00000i 0 −2.00000 1.00000i 0 3.60555i 0 0 2.00000
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
13.b even 2 1 inner
39.d odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 585.2.b.f 4
3.b odd 2 1 inner 585.2.b.f 4
13.b even 2 1 inner 585.2.b.f 4
13.d odd 4 1 7605.2.a.w 2
13.d odd 4 1 7605.2.a.bl 2
39.d odd 2 1 inner 585.2.b.f 4
39.f even 4 1 7605.2.a.w 2
39.f even 4 1 7605.2.a.bl 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
585.2.b.f 4 1.a even 1 1 trivial
585.2.b.f 4 3.b odd 2 1 inner
585.2.b.f 4 13.b even 2 1 inner
585.2.b.f 4 39.d odd 2 1 inner
7605.2.a.w 2 13.d odd 4 1
7605.2.a.w 2 39.f even 4 1
7605.2.a.bl 2 13.d odd 4 1
7605.2.a.bl 2 39.f even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(585, [\chi])\):

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

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} + 13)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 9)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 13)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 13)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 52)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} - 13)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} - 52)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 52)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} + 13)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 121)^{2} \) Copy content Toggle raw display
$43$ \( (T + 4)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} + 16)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} - 117)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 144)^{2} \) Copy content Toggle raw display
$61$ \( (T - 13)^{4} \) Copy content Toggle raw display
$67$ \( T^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} + 25)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} + 52)^{2} \) Copy content Toggle raw display
$79$ \( (T - 13)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 9)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} + 13)^{2} \) Copy content Toggle raw display
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