Properties

Label 9660.2.a.z
Level $9660$
Weight $2$
Character orbit 9660.a
Self dual yes
Analytic conductor $77.135$
Analytic rank $0$
Dimension $8$
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] = [9660,2,Mod(1,9660)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(9660, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("9660.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 9660 = 2^{2} \cdot 3 \cdot 5 \cdot 7 \cdot 23 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9660.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: \(77.1354883526\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: \(\mathbb{Q}[x]/(x^{8} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 2x^{7} - 51x^{6} + 120x^{5} + 256x^{4} - 524x^{3} - 440x^{2} + 496x + 192 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{3} \)
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 a basis \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. 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 \( q + q^{3} + q^{5} + q^{7} + q^{9} + (\beta_{4} + 1) q^{11} + ( - \beta_{6} + 1) q^{13} + q^{15} + (\beta_{7} + 1) q^{17} + (\beta_{3} + 1) q^{19} + q^{21} + q^{23} + q^{25} + q^{27} + (\beta_{4} - \beta_{3} - \beta_{2} + 1) q^{29} + ( - \beta_{2} + 1) q^{31} + (\beta_{4} + 1) q^{33} + q^{35} + (\beta_{6} - \beta_{4} + \beta_{3} + \cdots + 2) q^{37}+ \cdots + (\beta_{4} + 1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 8 q^{3} + 8 q^{5} + 8 q^{7} + 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 8 q^{3} + 8 q^{5} + 8 q^{7} + 8 q^{9} + 8 q^{11} + 5 q^{13} + 8 q^{15} + 5 q^{17} + 10 q^{19} + 8 q^{21} + 8 q^{23} + 8 q^{25} + 8 q^{27} + 8 q^{29} + 10 q^{31} + 8 q^{33} + 8 q^{35} + 19 q^{37} + 5 q^{39} + 2 q^{41} + 11 q^{43} + 8 q^{45} + 3 q^{47} + 8 q^{49} + 5 q^{51} + 15 q^{53} + 8 q^{55} + 10 q^{57} + 10 q^{59} - 6 q^{61} + 8 q^{63} + 5 q^{65} + q^{67} + 8 q^{69} + 4 q^{71} + q^{73} + 8 q^{75} + 8 q^{77} + 20 q^{79} + 8 q^{81} + 9 q^{83} + 5 q^{85} + 8 q^{87} - 2 q^{89} + 5 q^{91} + 10 q^{93} + 10 q^{95} + 18 q^{97} + 8 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 2x^{7} - 51x^{6} + 120x^{5} + 256x^{4} - 524x^{3} - 440x^{2} + 496x + 192 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 167 \nu^{7} - 2604 \nu^{6} + 9029 \nu^{5} + 121246 \nu^{4} - 119852 \nu^{3} - 355380 \nu^{2} + \cdots - 84528 ) / 55856 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 63\nu^{7} - 251\nu^{6} - 3657\nu^{5} + 14151\nu^{4} + 35096\nu^{3} - 89902\nu^{2} - 103244\nu + 94684 ) / 13964 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 617 \nu^{7} + 4176 \nu^{6} + 27171 \nu^{5} - 218218 \nu^{4} + 108228 \nu^{3} + 819404 \nu^{2} + \cdots - 541408 ) / 55856 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -659\nu^{7} + 2016\nu^{6} + 29609\nu^{5} - 108958\nu^{4} + 38284\nu^{3} + 204412\nu^{2} - 278976\nu + 576 ) / 55856 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 632 \nu^{7} - 911 \nu^{6} - 31034 \nu^{5} + 58009 \nu^{4} + 112248 \nu^{3} - 208772 \nu^{2} + \cdots + 184264 ) / 27928 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 1471 \nu^{7} - 2148 \nu^{6} - 72089 \nu^{5} + 133090 \nu^{4} + 248048 \nu^{3} - 332916 \nu^{2} + \cdots + 3376 ) / 55856 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 1723 \nu^{7} - 3152 \nu^{6} - 86717 \nu^{5} + 189694 \nu^{4} + 388432 \nu^{3} - 692524 \nu^{2} + \cdots + 326256 ) / 55856 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} - \beta_{6} - \beta_{2} + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{7} + 5\beta_{6} + 8\beta_{4} - 2\beta_{3} - 5\beta_{2} + 2\beta _1 + 23 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 35\beta_{7} - 47\beta_{6} + 16\beta_{5} - 4\beta_{4} + 6\beta_{3} - 37\beta_{2} + 6\beta _1 + 11 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -67\beta_{7} + 243\beta_{6} + 12\beta_{5} + 386\beta_{4} - 106\beta_{3} - 215\beta_{2} + 84\beta _1 + 851 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 1535\beta_{7} - 2211\beta_{6} + 784\beta_{5} - 364\beta_{4} + 318\beta_{3} - 1537\beta_{2} + 238\beta _1 - 137 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 3807 \beta_{7} + 11863 \beta_{6} + 292 \beta_{5} + 17398 \beta_{4} - 4898 \beta_{3} - 8803 \beta_{2} + \cdots + 37051 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 69699 \beta_{7} - 103983 \beta_{6} + 35064 \beta_{5} - 24872 \beta_{4} + 16558 \beta_{3} - 63717 \beta_{2} + \cdots - 26161 ) / 2 \) 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
−1.70594
2.15982
1.07449
2.58387
6.40746
−0.332963
−1.27237
−6.91438
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
1.3 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
1.4 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
1.5 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
1.6 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
1.7 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
1.8 0 1.00000 0 1.00000 0 1.00000 0 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.8
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(3\) \(-1\)
\(5\) \(-1\)
\(7\) \(-1\)
\(23\) \(-1\)

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 9660.2.a.z 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
9660.2.a.z 8 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{11}^{8} - 8T_{11}^{7} - 30T_{11}^{6} + 349T_{11}^{5} - 290T_{11}^{4} - 2260T_{11}^{3} + 2386T_{11}^{2} + 3860T_{11} - 552 \) acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(9660))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T - 1)^{8} \) Copy content Toggle raw display
$5$ \( (T - 1)^{8} \) Copy content Toggle raw display
$7$ \( (T - 1)^{8} \) Copy content Toggle raw display
$11$ \( T^{8} - 8 T^{7} + \cdots - 552 \) Copy content Toggle raw display
$13$ \( T^{8} - 5 T^{7} + \cdots - 1216 \) Copy content Toggle raw display
$17$ \( T^{8} - 5 T^{7} + \cdots + 70848 \) Copy content Toggle raw display
$19$ \( T^{8} - 10 T^{7} + \cdots + 48 \) Copy content Toggle raw display
$23$ \( (T - 1)^{8} \) Copy content Toggle raw display
$29$ \( T^{8} - 8 T^{7} + \cdots + 1152 \) Copy content Toggle raw display
$31$ \( T^{8} - 10 T^{7} + \cdots + 512 \) Copy content Toggle raw display
$37$ \( T^{8} - 19 T^{7} + \cdots - 55376 \) Copy content Toggle raw display
$41$ \( T^{8} - 2 T^{7} + \cdots - 2592 \) Copy content Toggle raw display
$43$ \( T^{8} - 11 T^{7} + \cdots - 1303808 \) Copy content Toggle raw display
$47$ \( T^{8} - 3 T^{7} + \cdots + 188928 \) Copy content Toggle raw display
$53$ \( T^{8} - 15 T^{7} + \cdots - 21859200 \) Copy content Toggle raw display
$59$ \( T^{8} - 10 T^{7} + \cdots + 671592 \) Copy content Toggle raw display
$61$ \( T^{8} + 6 T^{7} + \cdots - 1636624 \) Copy content Toggle raw display
$67$ \( T^{8} - T^{7} + \cdots + 4112384 \) Copy content Toggle raw display
$71$ \( T^{8} - 4 T^{7} + \cdots + 248832 \) Copy content Toggle raw display
$73$ \( T^{8} - T^{7} + \cdots + 59740656 \) Copy content Toggle raw display
$79$ \( T^{8} - 20 T^{7} + \cdots + 9233088 \) Copy content Toggle raw display
$83$ \( T^{8} - 9 T^{7} + \cdots + 317952 \) Copy content Toggle raw display
$89$ \( T^{8} + 2 T^{7} + \cdots - 12317184 \) Copy content Toggle raw display
$97$ \( T^{8} - 18 T^{7} + \cdots - 3864064 \) Copy content Toggle raw display
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