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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [288,5,Mod(127,288)] 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("288.127"); S:= CuspForms(chi, 5); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(288, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1, 0, 0])) N = Newforms(chi, 5, names="a")
 
Level: \( N \) \(=\) \( 288 = 2^{5} \cdot 3^{2} \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 288.g (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,0,32] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(29.7705493681\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{5})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 3x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{10}\cdot 3^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{3} + 8) q^{5} + (\beta_{2} + 3 \beta_1) q^{7} + (2 \beta_{2} + 9 \beta_1) q^{11} + (8 \beta_{3} - 74) q^{13} + (2 \beta_{3} - 144) q^{17} + (2 \beta_{2} - 2 \beta_1) q^{19} + ( - 12 \beta_{2} + 10 \beta_1) q^{23}+ \cdots + ( - 480 \beta_{3} + 2782) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 32 q^{5} - 296 q^{13} - 576 q^{17} + 636 q^{25} - 3488 q^{29} + 1320 q^{37} - 6848 q^{41} - 3516 q^{49} - 11040 q^{53} + 424 q^{61} - 25408 q^{65} + 3000 q^{73} - 28160 q^{77} - 10368 q^{85} + 384 q^{89}+ \cdots + 11128 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 3x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( -8\nu^{3} - 16\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( 28\nu^{3} + 104\nu \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 24\nu^{2} + 36 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 2\beta_{2} + 7\beta_1 ) / 96 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} - 36 ) / 24 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{2} - 13\beta_1 ) / 48 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/288\mathbb{Z}\right)^\times\).

\(n\) \(37\) \(65\) \(127\)
\(\chi(n)\) \(1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
127.1
0.618034i
0.618034i
1.61803i
1.61803i
0 0 0 −18.8328 0 33.6656i 0 0 0
127.2 0 0 0 −18.8328 0 33.6656i 0 0 0
127.3 0 0 0 34.8328 0 73.6656i 0 0 0
127.4 0 0 0 34.8328 0 73.6656i 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
4.b odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 288.5.g.e yes 4
3.b odd 2 1 288.5.g.d 4
4.b odd 2 1 inner 288.5.g.e yes 4
8.b even 2 1 576.5.g.k 4
8.d odd 2 1 576.5.g.k 4
12.b even 2 1 288.5.g.d 4
24.f even 2 1 576.5.g.n 4
24.h odd 2 1 576.5.g.n 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
288.5.g.d 4 3.b odd 2 1
288.5.g.d 4 12.b even 2 1
288.5.g.e yes 4 1.a even 1 1 trivial
288.5.g.e yes 4 4.b odd 2 1 inner
576.5.g.k 4 8.b even 2 1
576.5.g.k 4 8.d odd 2 1
576.5.g.n 4 24.f even 2 1
576.5.g.n 4 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{2} - 16T_{5} - 656 \) acting on \(S_{5}^{\mathrm{new}}(288, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( (T^{2} - 16 T - 656)^{2} \) Copy content Toggle raw display
$7$ \( T^{4} + 6560 T^{2} + 6150400 \) Copy content Toggle raw display
$11$ \( T^{4} + 31232 T^{2} + 55115776 \) Copy content Toggle raw display
$13$ \( (T^{2} + 148 T - 40604)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} + 288 T + 17856)^{2} \) Copy content Toggle raw display
$19$ \( T^{4} + 24192 T^{2} + 119771136 \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 158671568896 \) Copy content Toggle raw display
$29$ \( (T^{2} + 1744 T + 638704)^{2} \) Copy content Toggle raw display
$31$ \( T^{4} + \cdots + 103416269056 \) Copy content Toggle raw display
$37$ \( (T^{2} - 660 T - 1043100)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 3424 T + 2444224)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots + 885225066496 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 82591744000000 \) Copy content Toggle raw display
$53$ \( (T^{2} + 5520 T + 3988080)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 21622351200256 \) Copy content Toggle raw display
$61$ \( (T^{2} - 212 T - 403484)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots + 255664238166016 \) Copy content Toggle raw display
$71$ \( T^{4} + \cdots + 629202239881216 \) Copy content Toggle raw display
$73$ \( (T^{2} - 1500 T + 378180)^{2} \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots + 1720126679296 \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 180846982660096 \) Copy content Toggle raw display
$89$ \( (T^{2} - 192 T - 95387904)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} - 5564 T - 158148476)^{2} \) Copy content Toggle raw display
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