Properties

Label 240.5.bg.b
Level $240$
Weight $5$
Character orbit 240.bg
Analytic conductor $24.809$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [240,5,Mod(97,240)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(240, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 1]))
 
N = Newforms(chi, 5, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("240.97");
 
S:= CuspForms(chi, 5);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 240 = 2^{4} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 240.bg (of order \(4\), degree \(2\), not minimal)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(24.8087911401\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(i)\)
Coefficient field: \(\Q(i, \sqrt{6})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 9 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 3^{2} \)
Twist minimal: no (minimal twist has level 30)
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
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.

\(f(q)\) \(=\) \( q + \beta_{3} q^{3} + ( - \beta_{3} - 7 \beta_{2} + \cdots + 21) q^{5}+ \cdots - 27 \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{3} q^{3} + ( - \beta_{3} - 7 \beta_{2} + \cdots + 21) q^{5}+ \cdots + ( - 189 \beta_{3} + 3132 \beta_{2} - 189 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 84 q^{5} + 28 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 84 q^{5} + 28 q^{7} - 464 q^{11} - 336 q^{13} + 216 q^{15} + 392 q^{17} - 1512 q^{21} - 968 q^{23} + 1136 q^{25} + 560 q^{31} - 756 q^{33} + 2296 q^{35} + 2256 q^{37} + 392 q^{41} - 216 q^{43} - 756 q^{45} + 9072 q^{47} - 4968 q^{51} - 4280 q^{53} - 10500 q^{55} + 6264 q^{57} - 4536 q^{61} + 756 q^{63} - 12912 q^{65} + 2248 q^{67} - 18064 q^{71} + 20524 q^{73} + 10584 q^{75} + 7336 q^{77} - 2916 q^{81} + 336 q^{83} + 15944 q^{85} - 8316 q^{87} + 52752 q^{91} - 7992 q^{93} - 23104 q^{95} - 40404 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 9 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 3\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 3\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/240\mathbb{Z}\right)^\times\).

\(n\) \(31\) \(97\) \(161\) \(181\)
\(\chi(n)\) \(1\) \(\beta_{2}\) \(1\) \(1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
97.1
1.22474 + 1.22474i
−1.22474 1.22474i
1.22474 1.22474i
−1.22474 + 1.22474i
0 −3.67423 + 3.67423i 0 17.3258 18.0227i 0 58.4393 + 58.4393i 0 27.0000i 0
97.2 0 3.67423 3.67423i 0 24.6742 + 4.02270i 0 −44.4393 44.4393i 0 27.0000i 0
193.1 0 −3.67423 3.67423i 0 17.3258 + 18.0227i 0 58.4393 58.4393i 0 27.0000i 0
193.2 0 3.67423 + 3.67423i 0 24.6742 4.02270i 0 −44.4393 + 44.4393i 0 27.0000i 0
\(n\): e.g. 2-40 or 990-1000
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 240.5.bg.b 4
4.b odd 2 1 30.5.f.a 4
5.c odd 4 1 inner 240.5.bg.b 4
12.b even 2 1 90.5.g.e 4
20.d odd 2 1 150.5.f.e 4
20.e even 4 1 30.5.f.a 4
20.e even 4 1 150.5.f.e 4
60.h even 2 1 450.5.g.f 4
60.l odd 4 1 90.5.g.e 4
60.l odd 4 1 450.5.g.f 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
30.5.f.a 4 4.b odd 2 1
30.5.f.a 4 20.e even 4 1
90.5.g.e 4 12.b even 2 1
90.5.g.e 4 60.l odd 4 1
150.5.f.e 4 20.d odd 2 1
150.5.f.e 4 20.e even 4 1
240.5.bg.b 4 1.a even 1 1 trivial
240.5.bg.b 4 5.c odd 4 1 inner
450.5.g.f 4 60.h even 2 1
450.5.g.f 4 60.l odd 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} - 28T_{7}^{3} + 392T_{7}^{2} + 145432T_{7} + 26977636 \) acting on \(S_{5}^{\mathrm{new}}(240, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} + 729 \) Copy content Toggle raw display
$5$ \( T^{4} - 84 T^{3} + \cdots + 390625 \) Copy content Toggle raw display
$7$ \( T^{4} - 28 T^{3} + \cdots + 26977636 \) Copy content Toggle raw display
$11$ \( (T^{2} + 232 T + 10810)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} + 336 T^{3} + \cdots + 618815376 \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 1438229776 \) Copy content Toggle raw display
$19$ \( T^{4} + \cdots + 24945043600 \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 4830250000 \) Copy content Toggle raw display
$29$ \( T^{4} + \cdots + 60069108100 \) Copy content Toggle raw display
$31$ \( (T^{2} - 280 T - 276104)^{2} \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots + 307479122064 \) Copy content Toggle raw display
$41$ \( (T^{2} - 196 T - 2193812)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + \cdots + 273914063424 \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 100134845427600 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots + 4407010106944 \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 812612102500 \) Copy content Toggle raw display
$61$ \( (T^{2} + 2268 T - 8149140)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots + 502668237829696 \) Copy content Toggle raw display
$71$ \( (T^{2} + 9032 T + 19716880)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 21\!\cdots\!16 \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots + 12490004174400 \) Copy content Toggle raw display
$83$ \( T^{4} + \cdots + 12\!\cdots\!56 \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots + 50\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{4} + \cdots + 41\!\cdots\!04 \) Copy content Toggle raw display
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