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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [432,1,Mod(161,432)] 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("432.161"); S:= CuspForms(chi, 1); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(432, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 1])) B = ModularForms(chi, 1).cuspidal_submodule().basis() N = [B[i] for i in range(len(B))]
 
Level: \( N \) \(=\) \( 432 = 2^{4} \cdot 3^{3} \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 432.e (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(0)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(0.215596085457\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 108)
Projective image: \(D_{3}\)
Projective field: Galois closure of \(\Q(\sqrt[3]{2})\)
Artin image: $D_6$
Artin field: Galois closure of 6.0.186624.1
Stark unit: Root of $x^{6} - 42x^{5} + 375x^{4} - 1100x^{3} + 375x^{2} - 42x + 1$

$q$-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)
 
\(f(q)\) \(=\) \( q + q^{7} - q^{13} + q^{19} + q^{25} - 2 q^{31} - q^{37} - 2 q^{43} - q^{61} + q^{67} - q^{73} + q^{79} - q^{91} - q^{97}+O(q^{100}) \) Copy content Toggle raw display

Expression as an eta quotient

\(f(z) = \dfrac{\eta(12z)^{3}\eta(36z)^{3}}{\eta(6z)\eta(18z)\eta(24z)\eta(72z)}=q\prod_{n=1}^\infty(1 - q^{6n})^{-1}(1 - q^{12n})^{3}(1 - q^{18n})^{-1}(1 - q^{24n})^{-1}(1 - q^{36n})^{3}(1 - q^{72n})^{-1}\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/432\mathbb{Z}\right)^\times\).

\(n\) \(271\) \(325\) \(353\)
\(\chi(n)\) \(1\) \(1\) \(-1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
161.1
0
0 0 0 0 0 1.00000 0 0 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 CM by \(\Q(\sqrt{-3}) \)

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 432.1.e.a 1
3.b odd 2 1 CM 432.1.e.a 1
4.b odd 2 1 108.1.c.a ✓ 1
8.b even 2 1 1728.1.e.b 1
8.d odd 2 1 1728.1.e.a 1
9.c even 3 2 1296.1.q.a 2
9.d odd 6 2 1296.1.q.a 2
12.b even 2 1 108.1.c.a ✓ 1
20.d odd 2 1 2700.1.g.b 1
20.e even 4 2 2700.1.b.b 2
24.f even 2 1 1728.1.e.a 1
24.h odd 2 1 1728.1.e.b 1
36.f odd 6 2 324.1.g.a 2
36.h even 6 2 324.1.g.a 2
60.h even 2 1 2700.1.g.b 1
60.l odd 4 2 2700.1.b.b 2
108.j odd 18 6 2916.1.k.c 6
108.l even 18 6 2916.1.k.c 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
108.1.c.a ✓ 1 4.b odd 2 1
108.1.c.a ✓ 1 12.b even 2 1
324.1.g.a 2 36.f odd 6 2
324.1.g.a 2 36.h even 6 2
432.1.e.a 1 1.a even 1 1 trivial
432.1.e.a 1 3.b odd 2 1 CM
1296.1.q.a 2 9.c even 3 2
1296.1.q.a 2 9.d odd 6 2
1728.1.e.a 1 8.d odd 2 1
1728.1.e.a 1 24.f even 2 1
1728.1.e.b 1 8.b even 2 1
1728.1.e.b 1 24.h odd 2 1
2700.1.b.b 2 20.e even 4 2
2700.1.b.b 2 60.l odd 4 2
2700.1.g.b 1 20.d odd 2 1
2700.1.g.b 1 60.h even 2 1
2916.1.k.c 6 108.j odd 18 6
2916.1.k.c 6 108.l even 18 6

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(432, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T \) Copy content Toggle raw display
$7$ \( T - 1 \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T + 1 \) Copy content Toggle raw display
$17$ \( T \) Copy content Toggle raw display
$19$ \( T - 1 \) Copy content Toggle raw display
$23$ \( T \) Copy content Toggle raw display
$29$ \( T \) Copy content Toggle raw display
$31$ \( T + 2 \) Copy content Toggle raw display
$37$ \( T + 1 \) Copy content Toggle raw display
$41$ \( T \) Copy content Toggle raw display
$43$ \( T + 2 \) Copy content Toggle raw display
$47$ \( T \) Copy content Toggle raw display
$53$ \( T \) Copy content Toggle raw display
$59$ \( T \) Copy content Toggle raw display
$61$ \( T + 1 \) Copy content Toggle raw display
$67$ \( T - 1 \) Copy content Toggle raw display
$71$ \( T \) Copy content Toggle raw display
$73$ \( T + 1 \) Copy content Toggle raw display
$79$ \( T - 1 \) Copy content Toggle raw display
$83$ \( T \) Copy content Toggle raw display
$89$ \( T \) Copy content Toggle raw display
$97$ \( T + 1 \) Copy content Toggle raw display
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