Properties

Label 1050.2.bc.b
Level $1050$
Weight $2$
Character orbit 1050.bc
Analytic conductor $8.384$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1050,2,Mod(157,1050)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1050, base_ring=CyclotomicField(12))
 
chi = DirichletCharacter(H, H._module([0, 3, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1050.157");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1050 = 2 \cdot 3 \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1050.bc (of order \(12\), degree \(4\), 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: \(8.38429221223\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{12})\)
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: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{12}]$

$q$-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 primitive root of unity \(\zeta_{24}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{24}^{7} + \zeta_{24}^{3}) q^{2} + \zeta_{24}^{7} q^{3} + ( - \zeta_{24}^{6} + \zeta_{24}^{2}) q^{4} + \zeta_{24}^{6} q^{6} + ( - 3 \zeta_{24}^{7} + \zeta_{24}^{3}) q^{7} + ( - \zeta_{24}^{5} + \zeta_{24}) q^{8} - \zeta_{24}^{2} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{24}^{7} + \zeta_{24}^{3}) q^{2} + \zeta_{24}^{7} q^{3} + ( - \zeta_{24}^{6} + \zeta_{24}^{2}) q^{4} + \zeta_{24}^{6} q^{6} + ( - 3 \zeta_{24}^{7} + \zeta_{24}^{3}) q^{7} + ( - \zeta_{24}^{5} + \zeta_{24}) q^{8} - \zeta_{24}^{2} q^{9} + (\zeta_{24}^{6} + \cdots + \zeta_{24}^{2}) q^{11} + \cdots + (\zeta_{24}^{6} - 2 \zeta_{24}^{4} + 1) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 4 q^{11} + 4 q^{16} - 4 q^{19} + 4 q^{24} + 24 q^{26} + 48 q^{31} + 32 q^{34} - 8 q^{36} - 24 q^{39} + 12 q^{44} + 8 q^{46} - 16 q^{51} + 4 q^{54} - 4 q^{56} + 16 q^{59} + 36 q^{61} - 12 q^{66} - 16 q^{69} + 8 q^{71} - 12 q^{74} - 84 q^{79} + 4 q^{81} + 20 q^{84} - 20 q^{86} + 12 q^{89} + 72 q^{91} + 44 q^{94}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1050\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(451\) \(701\)
\(\chi(n)\) \(\zeta_{24}^{6}\) \(1 - \zeta_{24}^{4}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
157.1
−0.258819 0.965926i
0.258819 + 0.965926i
−0.965926 + 0.258819i
0.965926 0.258819i
−0.965926 0.258819i
0.965926 + 0.258819i
−0.258819 + 0.965926i
0.258819 0.965926i
−0.258819 + 0.965926i 0.965926 0.258819i −0.866025 0.500000i 0 1.00000i −2.19067 + 1.48356i 0.707107 0.707107i 0.866025 0.500000i 0
157.2 0.258819 0.965926i −0.965926 + 0.258819i −0.866025 0.500000i 0 1.00000i 2.19067 1.48356i −0.707107 + 0.707107i 0.866025 0.500000i 0
493.1 −0.965926 0.258819i 0.258819 + 0.965926i 0.866025 + 0.500000i 0 1.00000i −1.48356 2.19067i −0.707107 0.707107i −0.866025 + 0.500000i 0
493.2 0.965926 + 0.258819i −0.258819 0.965926i 0.866025 + 0.500000i 0 1.00000i 1.48356 + 2.19067i 0.707107 + 0.707107i −0.866025 + 0.500000i 0
607.1 −0.965926 + 0.258819i 0.258819 0.965926i 0.866025 0.500000i 0 1.00000i −1.48356 + 2.19067i −0.707107 + 0.707107i −0.866025 0.500000i 0
607.2 0.965926 0.258819i −0.258819 + 0.965926i 0.866025 0.500000i 0 1.00000i 1.48356 2.19067i 0.707107 0.707107i −0.866025 0.500000i 0
943.1 −0.258819 0.965926i 0.965926 + 0.258819i −0.866025 + 0.500000i 0 1.00000i −2.19067 1.48356i 0.707107 + 0.707107i 0.866025 + 0.500000i 0
943.2 0.258819 + 0.965926i −0.965926 0.258819i −0.866025 + 0.500000i 0 1.00000i 2.19067 + 1.48356i −0.707107 0.707107i 0.866025 + 0.500000i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 157.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
35.k even 12 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1050.2.bc.b 8
5.b even 2 1 inner 1050.2.bc.b 8
5.c odd 4 2 1050.2.bc.c yes 8
7.d odd 6 1 1050.2.bc.c yes 8
35.i odd 6 1 1050.2.bc.c yes 8
35.k even 12 2 inner 1050.2.bc.b 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1050.2.bc.b 8 1.a even 1 1 trivial
1050.2.bc.b 8 5.b even 2 1 inner
1050.2.bc.b 8 35.k even 12 2 inner
1050.2.bc.c yes 8 5.c odd 4 2
1050.2.bc.c yes 8 7.d odd 6 1
1050.2.bc.c yes 8 35.i odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1050, [\chi])\):

\( T_{11}^{4} + 2T_{11}^{3} + 6T_{11}^{2} - 4T_{11} + 4 \) Copy content Toggle raw display
\( T_{13}^{8} + 896T_{13}^{4} + 4096 \) Copy content Toggle raw display
\( T_{17}^{8} + 48T_{17}^{6} + 599T_{17}^{4} - 8112T_{17}^{2} + 28561 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} - T^{4} + 1 \) Copy content Toggle raw display
$3$ \( T^{8} - T^{4} + 1 \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} + 71T^{4} + 2401 \) Copy content Toggle raw display
$11$ \( (T^{4} + 2 T^{3} + 6 T^{2} + \cdots + 4)^{2} \) Copy content Toggle raw display
$13$ \( T^{8} + 896T^{4} + 4096 \) Copy content Toggle raw display
$17$ \( T^{8} + 48 T^{6} + \cdots + 28561 \) Copy content Toggle raw display
$19$ \( (T^{4} + 2 T^{3} + \cdots + 676)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + 24 T^{6} + \cdots + 1 \) Copy content Toggle raw display
$29$ \( (T^{4} + 72 T^{2} + 324)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 24 T^{3} + \cdots + 2209)^{2} \) Copy content Toggle raw display
$37$ \( T^{8} - 36 T^{6} + \cdots + 1296 \) Copy content Toggle raw display
$41$ \( (T^{4} + 26 T^{2} + 121)^{2} \) Copy content Toggle raw display
$43$ \( T^{8} + 10808T^{4} + 16 \) Copy content Toggle raw display
$47$ \( T^{8} - 14641 T^{4} + 214358881 \) Copy content Toggle raw display
$53$ \( T^{8} + 84 T^{6} + \cdots + 4477456 \) Copy content Toggle raw display
$59$ \( (T^{4} - 8 T^{3} + 60 T^{2} + \cdots + 16)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} - 18 T^{3} + \cdots + 484)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} - 256 T^{4} + 65536 \) Copy content Toggle raw display
$71$ \( (T^{2} - 2 T - 191)^{4} \) Copy content Toggle raw display
$73$ \( T^{8} - 4096 T^{4} + 16777216 \) Copy content Toggle raw display
$79$ \( (T^{4} + 42 T^{3} + \cdots + 17161)^{2} \) Copy content Toggle raw display
$83$ \( T^{8} + 19512 T^{4} + 18974736 \) Copy content Toggle raw display
$89$ \( (T^{4} - 6 T^{3} + 39 T^{2} + \cdots + 9)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 2401)^{2} \) Copy content Toggle raw display
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