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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [180,4,Mod(1,180)] 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("180.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(180, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 180 = 2^{2} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 180.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1,0,0,0,5,0,-28] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(10.6203438010\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 60)
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)
 
\(f(q)\) \(=\) \( q + 5 q^{5} - 28 q^{7} + 24 q^{11} - 70 q^{13} - 102 q^{17} + 20 q^{19} + 72 q^{23} + 25 q^{25} - 306 q^{29} - 136 q^{31} - 140 q^{35} - 214 q^{37} + 150 q^{41} - 292 q^{43} + 72 q^{47} + 441 q^{49} + 414 q^{53}+ \cdots - 286 q^{97}+O(q^{100}) \) 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
0
0 0 0 5.00000 0 −28.0000 0 0 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

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

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 180.4.a.d 1
3.b odd 2 1 60.4.a.a ✓ 1
4.b odd 2 1 720.4.a.bb 1
5.b even 2 1 900.4.a.q 1
5.c odd 4 2 900.4.d.h 2
9.c even 3 2 1620.4.i.f 2
9.d odd 6 2 1620.4.i.l 2
12.b even 2 1 240.4.a.i 1
15.d odd 2 1 300.4.a.i 1
15.e even 4 2 300.4.d.b 2
24.f even 2 1 960.4.a.r 1
24.h odd 2 1 960.4.a.bc 1
60.h even 2 1 1200.4.a.a 1
60.l odd 4 2 1200.4.f.n 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
60.4.a.a ✓ 1 3.b odd 2 1
180.4.a.d 1 1.a even 1 1 trivial
240.4.a.i 1 12.b even 2 1
300.4.a.i 1 15.d odd 2 1
300.4.d.b 2 15.e even 4 2
720.4.a.bb 1 4.b odd 2 1
900.4.a.q 1 5.b even 2 1
900.4.d.h 2 5.c odd 4 2
960.4.a.r 1 24.f even 2 1
960.4.a.bc 1 24.h odd 2 1
1200.4.a.a 1 60.h even 2 1
1200.4.f.n 2 60.l odd 4 2
1620.4.i.f 2 9.c even 3 2
1620.4.i.l 2 9.d odd 6 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(180))\):

\( T_{7} + 28 \) Copy content Toggle raw display
\( T_{11} - 24 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T - 5 \) Copy content Toggle raw display
$7$ \( T + 28 \) Copy content Toggle raw display
$11$ \( T - 24 \) Copy content Toggle raw display
$13$ \( T + 70 \) Copy content Toggle raw display
$17$ \( T + 102 \) Copy content Toggle raw display
$19$ \( T - 20 \) Copy content Toggle raw display
$23$ \( T - 72 \) Copy content Toggle raw display
$29$ \( T + 306 \) Copy content Toggle raw display
$31$ \( T + 136 \) Copy content Toggle raw display
$37$ \( T + 214 \) Copy content Toggle raw display
$41$ \( T - 150 \) Copy content Toggle raw display
$43$ \( T + 292 \) Copy content Toggle raw display
$47$ \( T - 72 \) Copy content Toggle raw display
$53$ \( T - 414 \) Copy content Toggle raw display
$59$ \( T - 744 \) Copy content Toggle raw display
$61$ \( T + 418 \) Copy content Toggle raw display
$67$ \( T - 188 \) Copy content Toggle raw display
$71$ \( T + 480 \) Copy content Toggle raw display
$73$ \( T - 434 \) Copy content Toggle raw display
$79$ \( T - 1352 \) Copy content Toggle raw display
$83$ \( T - 612 \) Copy content Toggle raw display
$89$ \( T - 30 \) Copy content Toggle raw display
$97$ \( T + 286 \) Copy content Toggle raw display
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