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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [360,5,Mod(73,360)] 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("360.73"); S:= CuspForms(chi, 5); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(360, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([0, 0, 0, 3])) N = Newforms(chi, 5, names="a")
 
Level: \( N \) \(=\) \( 360 = 2^{3} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 360.v (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,0,12] 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: \(37.2131867102\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(i)\)
Coefficient field: \(\Q(i, \sqrt{29})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 15x^{2} + 49 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{4}\cdot 5 \)
Twist minimal: no (minimal twist has level 40)
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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.

\(f(q)\) \(=\) \( q + (\beta_{3} - 6 \beta_1 + 3) q^{5} + ( - \beta_{3} + 3 \beta_{2} + \cdots + 11) q^{7} + (4 \beta_{3} - 2 \beta_{2} + 74) q^{11} + ( - 3 \beta_{3} - \beta_{2} + \cdots + 79) q^{13} + ( - 4 \beta_{3} + 12 \beta_{2} + \cdots + 55) q^{17}+ \cdots + ( - 36 \beta_{3} + 108 \beta_{2} + \cdots + 2953) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 12 q^{5} + 44 q^{7} + 296 q^{11} + 316 q^{13} + 220 q^{17} - 652 q^{23} + 1284 q^{25} - 2760 q^{31} - 7092 q^{35} - 2052 q^{37} + 4312 q^{41} - 1724 q^{43} + 5252 q^{47} - 6924 q^{53} + 10168 q^{55}+ \cdots + 11812 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 15x^{2} + 49 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{3} + 8\nu ) / 7 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 4\nu^{3} - 28\nu^{2} + 88\nu - 210 ) / 7 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 2\nu^{3} + 56\nu^{2} + 44\nu + 420 ) / 7 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} + 2\beta_{2} - 10\beta_1 ) / 20 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 2\beta_{3} - \beta_{2} - 150 ) / 20 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{3} - 4\beta_{2} + 55\beta_1 ) / 5 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/360\mathbb{Z}\right)^\times\).

\(n\) \(181\) \(217\) \(271\) \(281\)
\(\chi(n)\) \(1\) \(-\beta_{1}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
73.1
3.19258i
2.19258i
3.19258i
2.19258i
0 0 0 −18.5407 16.7703i 0 64.8516 64.8516i 0 0 0
73.2 0 0 0 24.5407 + 4.77033i 0 −42.8516 + 42.8516i 0 0 0
217.1 0 0 0 −18.5407 + 16.7703i 0 64.8516 + 64.8516i 0 0 0
217.2 0 0 0 24.5407 4.77033i 0 −42.8516 42.8516i 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
5.c odd 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 360.5.v.b 4
3.b odd 2 1 40.5.l.b 4
5.c odd 4 1 inner 360.5.v.b 4
12.b even 2 1 80.5.p.f 4
15.d odd 2 1 200.5.l.c 4
15.e even 4 1 40.5.l.b 4
15.e even 4 1 200.5.l.c 4
24.f even 2 1 320.5.p.k 4
24.h odd 2 1 320.5.p.n 4
60.h even 2 1 400.5.p.g 4
60.l odd 4 1 80.5.p.f 4
60.l odd 4 1 400.5.p.g 4
120.q odd 4 1 320.5.p.k 4
120.w even 4 1 320.5.p.n 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
40.5.l.b 4 3.b odd 2 1
40.5.l.b 4 15.e even 4 1
80.5.p.f 4 12.b even 2 1
80.5.p.f 4 60.l odd 4 1
200.5.l.c 4 15.d odd 2 1
200.5.l.c 4 15.e even 4 1
320.5.p.k 4 24.f even 2 1
320.5.p.k 4 120.q odd 4 1
320.5.p.n 4 24.h odd 2 1
320.5.p.n 4 120.w even 4 1
360.5.v.b 4 1.a even 1 1 trivial
360.5.v.b 4 5.c odd 4 1 inner
400.5.p.g 4 60.h even 2 1
400.5.p.g 4 60.l odd 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{5}^{\mathrm{new}}(360, [\chi])\):

\( T_{7}^{4} - 44T_{7}^{3} + 968T_{7}^{2} + 244552T_{7} + 30891364 \) Copy content Toggle raw display
\( T_{11}^{2} - 148T_{11} - 6124 \) 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
$5$ \( T^{4} - 12 T^{3} + \cdots + 390625 \) Copy content Toggle raw display
$7$ \( T^{4} - 44 T^{3} + \cdots + 30891364 \) Copy content Toggle raw display
$11$ \( (T^{2} - 148 T - 6124)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} - 316 T^{3} + \cdots + 44649124 \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 7525562500 \) Copy content Toggle raw display
$19$ \( T^{4} + 93888 T^{2} + 563777536 \) Copy content Toggle raw display
$23$ \( T^{4} + 652 T^{3} + \cdots + 879844 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 167195938816 \) Copy content Toggle raw display
$31$ \( (T^{2} + 1380 T + 186100)^{2} \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots + 1322182619044 \) Copy content Toggle raw display
$41$ \( (T^{2} - 2156 T - 2596316)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots + 5932527319684 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 3139055540644 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots + 21974737549284 \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 242185305788416 \) Copy content Toggle raw display
$61$ \( (T^{2} + 6060 T - 4228700)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots + 2926898229124 \) Copy content Toggle raw display
$71$ \( (T^{2} + 1116 T - 15569036)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 12\!\cdots\!24 \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots + 618613200388096 \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 14274961481284 \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots + 17\!\cdots\!36 \) Copy content Toggle raw display
$97$ \( T^{4} + \cdots + 98478194209924 \) Copy content Toggle raw display
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