Properties

Label 2400.2.w.l
Level $2400$
Weight $2$
Character orbit 2400.w
Analytic conductor $19.164$
Analytic rank $0$
Dimension $8$
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] = [2400,2,Mod(607,2400)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2400, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([2, 0, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2400.607");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2400 = 2^{5} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2400.w (of order \(4\), degree \(2\), 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: \(19.1640964851\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(i)\)
Coefficient field: \(\Q(\zeta_{24})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_1 q^{3} + ( - \beta_{6} - \beta_{5} + \beta_{4} + \cdots + 1) q^{7}+ \cdots + \beta_{3} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_1 q^{3} + ( - \beta_{6} - \beta_{5} + \beta_{4} + \cdots + 1) q^{7}+ \cdots + ( - \beta_{7} + \beta_{5} + \beta_{2} + \cdots + 2) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 8 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 8 q^{7} + 8 q^{17} + 16 q^{19} + 8 q^{21} + 8 q^{23} - 8 q^{33} + 16 q^{37} - 16 q^{39} - 16 q^{41} - 24 q^{43} + 16 q^{47} + 8 q^{53} + 8 q^{57} - 24 q^{61} + 8 q^{63} - 8 q^{67} + 48 q^{73} - 8 q^{77} - 32 q^{79} - 8 q^{81} + 16 q^{83} + 8 q^{87} - 24 q^{93} - 32 q^{97} + 16 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring

\(\beta_{1}\)\(=\) \( \zeta_{24}^{3} \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \zeta_{24}^{5} + \zeta_{24} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \zeta_{24}^{6} \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( 2\zeta_{24}^{4} - 1 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( -\zeta_{24}^{5} + \zeta_{24} \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( -\zeta_{24}^{6} + 2\zeta_{24}^{2} \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( 2\zeta_{24}^{7} - \zeta_{24}^{3} \) Copy content Toggle raw display
\(\zeta_{24}\)\(=\) \( ( \beta_{5} + \beta_{2} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{2}\)\(=\) \( ( \beta_{6} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{3}\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\zeta_{24}^{4}\)\(=\) \( ( \beta_{4} + 1 ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{5}\)\(=\) \( ( -\beta_{5} + \beta_{2} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{6}\)\(=\) \( \beta_{3} \) Copy content Toggle raw display
\(\zeta_{24}^{7}\)\(=\) \( ( \beta_{7} + \beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2400\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(901\) \(1601\) \(1951\)
\(\chi(n)\) \(\beta_{3}\) \(1\) \(1\) \(-1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
607.1
0.965926 + 0.258819i
−0.258819 0.965926i
−0.965926 0.258819i
0.258819 + 0.965926i
0.965926 0.258819i
−0.258819 + 0.965926i
−0.965926 + 0.258819i
0.258819 0.965926i
0 −0.707107 0.707107i 0 0 0 −1.43916 + 1.43916i 0 1.00000i 0
607.2 0 −0.707107 0.707107i 0 0 0 2.02494 2.02494i 0 1.00000i 0
607.3 0 0.707107 + 0.707107i 0 0 0 −0.0249440 + 0.0249440i 0 1.00000i 0
607.4 0 0.707107 + 0.707107i 0 0 0 3.43916 3.43916i 0 1.00000i 0
2143.1 0 −0.707107 + 0.707107i 0 0 0 −1.43916 1.43916i 0 1.00000i 0
2143.2 0 −0.707107 + 0.707107i 0 0 0 2.02494 + 2.02494i 0 1.00000i 0
2143.3 0 0.707107 0.707107i 0 0 0 −0.0249440 0.0249440i 0 1.00000i 0
2143.4 0 0.707107 0.707107i 0 0 0 3.43916 + 3.43916i 0 1.00000i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 607.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
20.e even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2400.2.w.l yes 8
4.b odd 2 1 2400.2.w.h yes 8
5.b even 2 1 2400.2.w.g 8
5.c odd 4 1 2400.2.w.h yes 8
5.c odd 4 1 2400.2.w.k yes 8
20.d odd 2 1 2400.2.w.k yes 8
20.e even 4 1 2400.2.w.g 8
20.e even 4 1 inner 2400.2.w.l yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2400.2.w.g 8 5.b even 2 1
2400.2.w.g 8 20.e even 4 1
2400.2.w.h yes 8 4.b odd 2 1
2400.2.w.h yes 8 5.c odd 4 1
2400.2.w.k yes 8 5.c odd 4 1
2400.2.w.k yes 8 20.d odd 2 1
2400.2.w.l yes 8 1.a even 1 1 trivial
2400.2.w.l yes 8 20.e even 4 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2400, [\chi])\):

\( T_{7}^{8} - 8T_{7}^{7} + 32T_{7}^{6} - 24T_{7}^{5} + 2T_{7}^{4} - 72T_{7}^{3} + 800T_{7}^{2} + 40T_{7} + 1 \) Copy content Toggle raw display
\( T_{17}^{8} - 8T_{17}^{7} + 32T_{17}^{6} + 128T_{17}^{4} - 768T_{17}^{3} + 2048T_{17}^{2} - 2048T_{17} + 1024 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T^{4} + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} - 8 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{8} + 48 T^{6} + \cdots + 1024 \) Copy content Toggle raw display
$13$ \( T^{8} + 194T^{4} + 1 \) Copy content Toggle raw display
$17$ \( T^{8} - 8 T^{7} + \cdots + 1024 \) Copy content Toggle raw display
$19$ \( (T^{4} - 8 T^{3} + \cdots - 191)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} - 8 T^{7} + \cdots + 1024 \) Copy content Toggle raw display
$29$ \( T^{8} + 80 T^{6} + \cdots + 1024 \) Copy content Toggle raw display
$31$ \( T^{8} + 108 T^{6} + \cdots + 81 \) Copy content Toggle raw display
$37$ \( T^{8} - 16 T^{7} + \cdots + 262144 \) Copy content Toggle raw display
$41$ \( (T^{4} + 8 T^{3} + \cdots - 752)^{2} \) Copy content Toggle raw display
$43$ \( T^{8} + 24 T^{7} + \cdots + 2954961 \) Copy content Toggle raw display
$47$ \( T^{8} - 16 T^{7} + \cdots + 256 \) Copy content Toggle raw display
$53$ \( T^{8} - 8 T^{7} + \cdots + 2408704 \) Copy content Toggle raw display
$59$ \( (T^{2} - 12)^{4} \) Copy content Toggle raw display
$61$ \( (T^{4} + 12 T^{3} + \cdots - 5175)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} + 8 T^{7} + \cdots + 1168561 \) Copy content Toggle raw display
$71$ \( T^{8} + 416 T^{6} + \cdots + 32993536 \) Copy content Toggle raw display
$73$ \( (T^{4} - 24 T^{3} + \cdots + 2304)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} + 16 T^{3} + \cdots + 16)^{2} \) Copy content Toggle raw display
$83$ \( T^{8} - 16 T^{7} + \cdots + 7139584 \) Copy content Toggle raw display
$89$ \( T^{8} + 320 T^{6} + \cdots + 262144 \) Copy content Toggle raw display
$97$ \( T^{8} + \cdots + 1315005169 \) Copy content Toggle raw display
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