Properties

Label 588.2.e.a
Level $588$
Weight $2$
Character orbit 588.e
Analytic conductor $4.695$
Analytic rank $0$
Dimension $4$
CM discriminant -84
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [588,2,Mod(491,588)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(588, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("588.491");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 588 = 2^{2} \cdot 3 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 588.e (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: \(4.69520363885\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\sqrt{2}, \sqrt{-3})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 2x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-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.

\(f(q)\) \(=\) \( q + \beta_1 q^{2} - \beta_{2} q^{3} + 2 q^{4} + \beta_{3} q^{5} + \beta_{3} q^{6} + 2 \beta_1 q^{8} - 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{2} - \beta_{2} q^{3} + 2 q^{4} + \beta_{3} q^{5} + \beta_{3} q^{6} + 2 \beta_1 q^{8} - 3 q^{9} - 2 \beta_{2} q^{10} + \beta_1 q^{11} - 2 \beta_{2} q^{12} - 3 \beta_1 q^{15} + 4 q^{16} - 3 \beta_{3} q^{17} - 3 \beta_1 q^{18} - 4 \beta_{2} q^{19} + 2 \beta_{3} q^{20} + 2 q^{22} - 5 \beta_1 q^{23} + 2 \beta_{3} q^{24} - q^{25} + 3 \beta_{2} q^{27} - 6 q^{30} - 2 \beta_{2} q^{31} + 4 \beta_1 q^{32} + \beta_{3} q^{33} + 6 \beta_{2} q^{34} - 6 q^{36} + 8 q^{37} + 4 \beta_{3} q^{38} - 4 \beta_{2} q^{40} - 5 \beta_{3} q^{41} + 2 \beta_1 q^{44} - 3 \beta_{3} q^{45} - 10 q^{46} - 4 \beta_{2} q^{48} - \beta_1 q^{50} + 9 \beta_1 q^{51} - 3 \beta_{3} q^{54} - 2 \beta_{2} q^{55} - 12 q^{57} - 6 \beta_1 q^{60} + 2 \beta_{3} q^{62} + 8 q^{64} - 2 \beta_{2} q^{66} - 6 \beta_{3} q^{68} - 5 \beta_{3} q^{69} + 11 \beta_1 q^{71} - 6 \beta_1 q^{72} + 8 \beta_1 q^{74} + \beta_{2} q^{75} - 8 \beta_{2} q^{76} + 4 \beta_{3} q^{80} + 9 q^{81} + 10 \beta_{2} q^{82} + 18 q^{85} + 4 q^{88} + \beta_{3} q^{89} + 6 \beta_{2} q^{90} - 10 \beta_1 q^{92} - 6 q^{93} - 12 \beta_1 q^{95} + 4 \beta_{3} q^{96} - 3 \beta_1 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 8 q^{4} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 8 q^{4} - 12 q^{9} + 16 q^{16} + 8 q^{22} - 4 q^{25} - 24 q^{30} - 24 q^{36} + 32 q^{37} - 40 q^{46} - 48 q^{57} + 32 q^{64} + 36 q^{81} + 72 q^{85} + 16 q^{88} - 24 q^{93}+O(q^{100}) \) Copy content Toggle raw display

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

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

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/588\mathbb{Z}\right)^\times\).

\(n\) \(197\) \(295\) \(493\)
\(\chi(n)\) \(-1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
491.1
0.707107 + 1.22474i
0.707107 1.22474i
−0.707107 1.22474i
−0.707107 + 1.22474i
−1.41421 1.73205i 2.00000 2.44949i 2.44949i 0 −2.82843 −3.00000 3.46410i
491.2 −1.41421 1.73205i 2.00000 2.44949i 2.44949i 0 −2.82843 −3.00000 3.46410i
491.3 1.41421 1.73205i 2.00000 2.44949i 2.44949i 0 2.82843 −3.00000 3.46410i
491.4 1.41421 1.73205i 2.00000 2.44949i 2.44949i 0 2.82843 −3.00000 3.46410i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
84.h odd 2 1 CM by \(\Q(\sqrt{-21}) \)
3.b odd 2 1 inner
4.b odd 2 1 inner
7.b odd 2 1 inner
12.b even 2 1 inner
21.c even 2 1 inner
28.d even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 588.2.e.a 4
3.b odd 2 1 inner 588.2.e.a 4
4.b odd 2 1 inner 588.2.e.a 4
7.b odd 2 1 inner 588.2.e.a 4
7.c even 3 1 588.2.n.a 4
7.c even 3 1 588.2.n.b 4
7.d odd 6 1 588.2.n.a 4
7.d odd 6 1 588.2.n.b 4
12.b even 2 1 inner 588.2.e.a 4
21.c even 2 1 inner 588.2.e.a 4
21.g even 6 1 588.2.n.a 4
21.g even 6 1 588.2.n.b 4
21.h odd 6 1 588.2.n.a 4
21.h odd 6 1 588.2.n.b 4
28.d even 2 1 inner 588.2.e.a 4
28.f even 6 1 588.2.n.a 4
28.f even 6 1 588.2.n.b 4
28.g odd 6 1 588.2.n.a 4
28.g odd 6 1 588.2.n.b 4
84.h odd 2 1 CM 588.2.e.a 4
84.j odd 6 1 588.2.n.a 4
84.j odd 6 1 588.2.n.b 4
84.n even 6 1 588.2.n.a 4
84.n even 6 1 588.2.n.b 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
588.2.e.a 4 1.a even 1 1 trivial
588.2.e.a 4 3.b odd 2 1 inner
588.2.e.a 4 4.b odd 2 1 inner
588.2.e.a 4 7.b odd 2 1 inner
588.2.e.a 4 12.b even 2 1 inner
588.2.e.a 4 21.c even 2 1 inner
588.2.e.a 4 28.d even 2 1 inner
588.2.e.a 4 84.h odd 2 1 CM
588.2.n.a 4 7.c even 3 1
588.2.n.a 4 7.d odd 6 1
588.2.n.a 4 21.g even 6 1
588.2.n.a 4 21.h odd 6 1
588.2.n.a 4 28.f even 6 1
588.2.n.a 4 28.g odd 6 1
588.2.n.a 4 84.j odd 6 1
588.2.n.a 4 84.n even 6 1
588.2.n.b 4 7.c even 3 1
588.2.n.b 4 7.d odd 6 1
588.2.n.b 4 21.g even 6 1
588.2.n.b 4 21.h odd 6 1
588.2.n.b 4 28.f even 6 1
588.2.n.b 4 28.g odd 6 1
588.2.n.b 4 84.j odd 6 1
588.2.n.b 4 84.n even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(588, [\chi])\):

\( T_{5}^{2} + 6 \) Copy content Toggle raw display
\( T_{11}^{2} - 2 \) Copy content Toggle raw display
\( T_{13} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} - 2)^{2} \) Copy content Toggle raw display
$3$ \( (T^{2} + 3)^{2} \) Copy content Toggle raw display
$5$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$7$ \( T^{4} \) Copy content Toggle raw display
$11$ \( (T^{2} - 2)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + 54)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 48)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} - 50)^{2} \) Copy content Toggle raw display
$29$ \( T^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} + 12)^{2} \) Copy content Toggle raw display
$37$ \( (T - 8)^{4} \) Copy content Toggle raw display
$41$ \( (T^{2} + 150)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} \) Copy content Toggle raw display
$47$ \( T^{4} \) Copy content Toggle raw display
$53$ \( T^{4} \) Copy content Toggle raw display
$59$ \( T^{4} \) Copy content Toggle raw display
$61$ \( T^{4} \) Copy content Toggle raw display
$67$ \( T^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} - 242)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} \) Copy content Toggle raw display
$79$ \( T^{4} \) Copy content Toggle raw display
$83$ \( T^{4} \) Copy content Toggle raw display
$89$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} \) Copy content Toggle raw display
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