Properties

Label 1200.2.w.c
Level $1200$
Weight $2$
Character orbit 1200.w
Analytic conductor $9.582$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1200,2,Mod(607,1200)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1200, 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("1200.607");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1200 = 2^{4} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1200.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: \(9.58204824255\)
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: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{8} \)
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.

\(f(q)\) \(=\) \( q - \beta_1 q^{3} + 2 \beta_{3} q^{7} + \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_1 q^{3} + 2 \beta_{3} q^{7} + \beta_{2} q^{9} - \beta_{4} q^{11} + \beta_{7} q^{13} - 2 \beta_{5} q^{17} + \beta_{6} q^{19} - 2 q^{21} + \beta_{3} q^{27} + \beta_{4} q^{31} + \beta_{7} q^{33} - 3 \beta_{5} q^{37} + \beta_{6} q^{39} + 6 q^{41} - 8 \beta_1 q^{43} + 12 \beta_{3} q^{47} + 3 \beta_{2} q^{49} + 2 \beta_{4} q^{51} + 2 \beta_{7} q^{53} - \beta_{5} q^{57} - 3 \beta_{6} q^{59} - 10 q^{61} + 2 \beta_1 q^{63} + 4 \beta_{3} q^{67} - 4 \beta_{4} q^{71} + 2 \beta_{7} q^{73} - 2 \beta_{5} q^{77} - \beta_{6} q^{79} - q^{81} - 12 \beta_1 q^{83} - 18 \beta_{2} q^{89} + 2 \beta_{4} q^{91} - \beta_{7} q^{93} - 2 \beta_{5} q^{97} + \beta_{6} q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 16 q^{21} + 48 q^{41} - 80 q^{61} - 8 q^{81}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring

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

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1200\mathbb{Z}\right)^\times\).

\(n\) \(401\) \(577\) \(751\) \(901\)
\(\chi(n)\) \(1\) \(\beta_{2}\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
607.1
0.965926 + 0.258819i
−0.258819 0.965926i
−0.965926 0.258819i
0.258819 + 0.965926i
−0.258819 + 0.965926i
0.965926 0.258819i
0.258819 0.965926i
−0.965926 + 0.258819i
0 −0.707107 0.707107i 0 0 0 1.41421 1.41421i 0 1.00000i 0
607.2 0 −0.707107 0.707107i 0 0 0 1.41421 1.41421i 0 1.00000i 0
607.3 0 0.707107 + 0.707107i 0 0 0 −1.41421 + 1.41421i 0 1.00000i 0
607.4 0 0.707107 + 0.707107i 0 0 0 −1.41421 + 1.41421i 0 1.00000i 0
943.1 0 −0.707107 + 0.707107i 0 0 0 1.41421 + 1.41421i 0 1.00000i 0
943.2 0 −0.707107 + 0.707107i 0 0 0 1.41421 + 1.41421i 0 1.00000i 0
943.3 0 0.707107 0.707107i 0 0 0 −1.41421 1.41421i 0 1.00000i 0
943.4 0 0.707107 0.707107i 0 0 0 −1.41421 1.41421i 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
4.b odd 2 1 inner
5.b even 2 1 inner
5.c odd 4 2 inner
20.d odd 2 1 inner
20.e even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1200.2.w.c 8
3.b odd 2 1 3600.2.x.h 8
4.b odd 2 1 inner 1200.2.w.c 8
5.b even 2 1 inner 1200.2.w.c 8
5.c odd 4 2 inner 1200.2.w.c 8
12.b even 2 1 3600.2.x.h 8
15.d odd 2 1 3600.2.x.h 8
15.e even 4 2 3600.2.x.h 8
20.d odd 2 1 inner 1200.2.w.c 8
20.e even 4 2 inner 1200.2.w.c 8
60.h even 2 1 3600.2.x.h 8
60.l odd 4 2 3600.2.x.h 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1200.2.w.c 8 1.a even 1 1 trivial
1200.2.w.c 8 4.b odd 2 1 inner
1200.2.w.c 8 5.b even 2 1 inner
1200.2.w.c 8 5.c odd 4 2 inner
1200.2.w.c 8 20.d odd 2 1 inner
1200.2.w.c 8 20.e even 4 2 inner
3600.2.x.h 8 3.b odd 2 1
3600.2.x.h 8 12.b even 2 1
3600.2.x.h 8 15.d odd 2 1
3600.2.x.h 8 15.e even 4 2
3600.2.x.h 8 60.h even 2 1
3600.2.x.h 8 60.l odd 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1200, [\chi])\):

\( T_{7}^{4} + 16 \) Copy content Toggle raw display
\( T_{13}^{4} + 144 \) 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
$7$ \( (T^{4} + 16)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 12)^{4} \) Copy content Toggle raw display
$13$ \( (T^{4} + 144)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} + 2304)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} - 12)^{4} \) Copy content Toggle raw display
$23$ \( T^{8} \) Copy content Toggle raw display
$29$ \( T^{8} \) Copy content Toggle raw display
$31$ \( (T^{2} + 12)^{4} \) Copy content Toggle raw display
$37$ \( (T^{4} + 11664)^{2} \) Copy content Toggle raw display
$41$ \( (T - 6)^{8} \) Copy content Toggle raw display
$43$ \( (T^{4} + 4096)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 20736)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 2304)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} - 108)^{4} \) Copy content Toggle raw display
$61$ \( (T + 10)^{8} \) Copy content Toggle raw display
$67$ \( (T^{4} + 256)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 192)^{4} \) Copy content Toggle raw display
$73$ \( (T^{4} + 2304)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} - 12)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 20736)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} + 324)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} + 2304)^{2} \) Copy content Toggle raw display
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