Properties

Label 121.8.a.d
Level $121$
Weight $8$
Character orbit 121.a
Self dual yes
Analytic conductor $37.799$
Analytic rank $1$
Dimension $5$
CM no
Inner twists $1$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [121,8,Mod(1,121)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("121.1"); S:= CuspForms(chi, 8); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(121, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0])) N = Newforms(chi, 8, names="a")
 
Level: \( N \) \(=\) \( 121 = 11^{2} \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 121.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [5,-8] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(37.7985880836\)
Analytic rank: \(1\)
Dimension: \(5\)
Coefficient field: \(\mathbb{Q}[x]/(x^{5} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{5} - 2x^{4} - 395x^{3} + 660x^{2} + 21600x - 76032 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{4}\cdot 3 \)
Twist minimal: yes
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_1 - 2) q^{2} + (\beta_{2} - \beta_1 - 2) q^{3} + (\beta_{4} + \beta_{2} - 4 \beta_1 + 35) q^{4} + (\beta_{3} + \beta_{2} + 7 \beta_1 - 105) q^{5} + ( - \beta_{4} + \beta_{3} + \beta_{2} + \cdots - 141) q^{6}+ \cdots + ( - 20940 \beta_{4} + 6250 \beta_{3} + \cdots - 1806058) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 5 q - 8 q^{2} - 14 q^{3} + 166 q^{4} - 515 q^{5} - 692 q^{6} + 1286 q^{7} - 2334 q^{8} + 1133 q^{9} + 6836 q^{10} + 10496 q^{12} + 6533 q^{13} - 18668 q^{14} + 2074 q^{15} + 15010 q^{16} - 32705 q^{17}+ \cdots - 9136104 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{5} - 2x^{4} - 395x^{3} + 660x^{2} + 21600x - 76032 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 5\nu^{4} + 14\nu^{3} - 1879\nu^{2} - 5892\nu + 72864 ) / 144 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{4} + 10\nu^{3} - 419\nu^{2} - 3216\nu + 21672 ) / 36 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -5\nu^{4} - 14\nu^{3} + 2023\nu^{2} + 5892\nu - 95760 ) / 144 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{4} + \beta_{2} + 159 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 6\beta_{4} + 5\beta_{3} + 2\beta_{2} + 283\beta _1 - 32 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 359\beta_{4} - 14\beta_{3} + 399\beta_{2} + 386\beta _1 + 45269 \) 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.

Copy content comment:embeddings in the coefficient field
 
Copy content 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
−17.7320
−9.02490
4.59754
5.55452
18.6048
−19.7320 35.1324 261.350 −485.746 −693.232 1057.93 −2631.26 −952.713 9584.72
1.2 −11.0249 −21.6215 −6.45150 243.519 238.374 −646.506 1482.31 −1719.51 −2684.78
1.3 2.59754 60.4351 −121.253 −21.1080 156.982 295.244 −647.443 1465.40 −54.8289
1.4 3.55452 −81.6995 −115.365 −319.514 −290.403 1172.95 −865.048 4487.81 −1135.72
1.5 16.6048 −6.24652 147.719 67.8486 −103.722 −593.613 327.438 −2147.98 1126.61
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.5
Significant digits:
Format:

Atkin-Lehner signs

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

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 121.8.a.d 5
11.b odd 2 1 121.8.a.e yes 5
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
121.8.a.d 5 1.a even 1 1 trivial
121.8.a.e yes 5 11.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{5} + 8T_{2}^{4} - 371T_{2}^{3} - 1678T_{2}^{2} + 19516T_{2} - 33352 \) acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(121))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{5} + 8 T^{4} + \cdots - 33352 \) Copy content Toggle raw display
$3$ \( T^{5} + 14 T^{4} + \cdots + 23428224 \) Copy content Toggle raw display
$5$ \( T^{5} + \cdots + 54127925375 \) Copy content Toggle raw display
$7$ \( T^{5} + \cdots - 140602327290304 \) Copy content Toggle raw display
$11$ \( T^{5} \) Copy content Toggle raw display
$13$ \( T^{5} + \cdots + 13\!\cdots\!03 \) Copy content Toggle raw display
$17$ \( T^{5} + \cdots + 48\!\cdots\!65 \) Copy content Toggle raw display
$19$ \( T^{5} + \cdots + 46\!\cdots\!16 \) Copy content Toggle raw display
$23$ \( T^{5} + \cdots + 23\!\cdots\!76 \) Copy content Toggle raw display
$29$ \( T^{5} + \cdots + 13\!\cdots\!11 \) Copy content Toggle raw display
$31$ \( T^{5} + \cdots + 89\!\cdots\!92 \) Copy content Toggle raw display
$37$ \( T^{5} + \cdots + 52\!\cdots\!59 \) Copy content Toggle raw display
$41$ \( T^{5} + \cdots - 65\!\cdots\!15 \) Copy content Toggle raw display
$43$ \( T^{5} + \cdots - 60\!\cdots\!00 \) Copy content Toggle raw display
$47$ \( T^{5} + \cdots - 23\!\cdots\!16 \) Copy content Toggle raw display
$53$ \( T^{5} + \cdots - 56\!\cdots\!77 \) Copy content Toggle raw display
$59$ \( T^{5} + \cdots - 46\!\cdots\!32 \) Copy content Toggle raw display
$61$ \( T^{5} + \cdots + 52\!\cdots\!36 \) Copy content Toggle raw display
$67$ \( T^{5} + \cdots + 32\!\cdots\!44 \) Copy content Toggle raw display
$71$ \( T^{5} + \cdots - 17\!\cdots\!08 \) Copy content Toggle raw display
$73$ \( T^{5} + \cdots + 92\!\cdots\!96 \) Copy content Toggle raw display
$79$ \( T^{5} + \cdots - 20\!\cdots\!60 \) Copy content Toggle raw display
$83$ \( T^{5} + \cdots - 33\!\cdots\!12 \) Copy content Toggle raw display
$89$ \( T^{5} + \cdots - 20\!\cdots\!51 \) Copy content Toggle raw display
$97$ \( T^{5} + \cdots - 36\!\cdots\!79 \) Copy content Toggle raw display
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