Properties

Label 528.8.a.r
Level $528$
Weight $8$
Character orbit 528.a
Self dual yes
Analytic conductor $164.939$
Analytic rank $1$
Dimension $4$
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] = [528,8,Mod(1,528)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(528, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
 
N = Newforms(chi, 8, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("528.1");
 
S:= CuspForms(chi, 8);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 528 = 2^{4} \cdot 3 \cdot 11 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 528.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: \(164.939293456\)
Analytic rank: \(1\)
Dimension: \(4\)
Coefficient field: \(\mathbb{Q}[x]/(x^{4} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} - 510x^{2} - 1544x + 28880 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 2^{7}\cdot 3^{2} \)
Twist minimal: no (minimal twist has level 33)
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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - 27 q^{3} + (\beta_{2} + \beta_1 + 77) q^{5} + (\beta_{3} + 2 \beta_{2} + 3 \beta_1 - 221) q^{7} + 729 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - 27 q^{3} + (\beta_{2} + \beta_1 + 77) q^{5} + (\beta_{3} + 2 \beta_{2} + 3 \beta_1 - 221) q^{7} + 729 q^{9} - 1331 q^{11} + ( - 14 \beta_{3} + 15 \beta_{2} + \cdots - 455) q^{13}+ \cdots - 970299 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 108 q^{3} + 306 q^{5} - 890 q^{7} + 2916 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q - 108 q^{3} + 306 q^{5} - 890 q^{7} + 2916 q^{9} - 5324 q^{11} - 1822 q^{13} - 8262 q^{15} + 32856 q^{17} + 12784 q^{19} + 24030 q^{21} - 114858 q^{23} + 72856 q^{25} - 78732 q^{27} - 104952 q^{29} + 24976 q^{31} + 143748 q^{33} + 722856 q^{35} - 498856 q^{37} + 49194 q^{39} + 734556 q^{41} + 201916 q^{43} + 223074 q^{45} - 1995894 q^{47} - 771024 q^{49} - 887112 q^{51} + 929970 q^{53} - 407286 q^{55} - 345168 q^{57} - 1353156 q^{59} + 3998774 q^{61} - 648810 q^{63} + 6612108 q^{65} - 1722008 q^{67} + 3101166 q^{69} - 5571858 q^{71} + 5600528 q^{73} - 1967112 q^{75} + 1184590 q^{77} + 7710226 q^{79} + 2125764 q^{81} - 3431856 q^{83} + 5909484 q^{85} + 2833704 q^{87} + 4611528 q^{89} + 9032696 q^{91} - 674352 q^{93} - 21828000 q^{95} + 1401692 q^{97} - 3881196 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - x^{3} - 510x^{2} - 1544x + 28880 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 16\nu - 4 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{3} - 11\nu^{2} - 376\nu + 1358 ) / 6 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{2} - 16\nu - 507 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta _1 + 4 ) / 16 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} + \beta _1 + 511 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 11\beta_{3} + 12\beta_{2} + 58\beta _1 + 3093 ) / 2 \) 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
−17.6807
6.33327
23.3791
−11.0316
0 −27.0000 0 −369.874 0 −1000.53 0 729.000 0
1.2 0 −27.0000 0 −27.4165 0 −860.612 0 729.000 0
1.3 0 −27.0000 0 336.012 0 879.192 0 729.000 0
1.4 0 −27.0000 0 367.278 0 91.9512 0 729.000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

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

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 528.8.a.r 4
4.b odd 2 1 33.8.a.e 4
12.b even 2 1 99.8.a.f 4
44.c even 2 1 363.8.a.f 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
33.8.a.e 4 4.b odd 2 1
99.8.a.f 4 12.b even 2 1
363.8.a.f 4 44.c even 2 1
528.8.a.r 4 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{4} - 306T_{5}^{3} - 145860T_{5}^{2} + 41897800T_{5} + 1251456000 \) acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(528))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( (T + 27)^{4} \) Copy content Toggle raw display
$5$ \( T^{4} + \cdots + 1251456000 \) Copy content Toggle raw display
$7$ \( T^{4} + \cdots + 69611139776 \) Copy content Toggle raw display
$11$ \( (T + 1331)^{4} \) Copy content Toggle raw display
$13$ \( T^{4} + \cdots - 161846909982208 \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 16\!\cdots\!76 \) Copy content Toggle raw display
$19$ \( T^{4} + \cdots + 43\!\cdots\!00 \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots - 49\!\cdots\!52 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 66\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{4} + \cdots + 59\!\cdots\!52 \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots + 37\!\cdots\!72 \) Copy content Toggle raw display
$41$ \( T^{4} + \cdots - 49\!\cdots\!64 \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots - 18\!\cdots\!00 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots - 25\!\cdots\!76 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots - 80\!\cdots\!56 \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 12\!\cdots\!40 \) Copy content Toggle raw display
$61$ \( T^{4} + \cdots - 13\!\cdots\!48 \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots - 15\!\cdots\!96 \) Copy content Toggle raw display
$71$ \( T^{4} + \cdots - 50\!\cdots\!80 \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 45\!\cdots\!12 \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots - 88\!\cdots\!40 \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 11\!\cdots\!72 \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots - 11\!\cdots\!60 \) Copy content Toggle raw display
$97$ \( T^{4} + \cdots - 11\!\cdots\!36 \) Copy content Toggle raw display
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