Properties

Label 2280.1.cs.b
Level $2280$
Weight $1$
Character orbit 2280.cs
Analytic conductor $1.138$
Analytic rank $0$
Dimension $4$
Projective image $D_{6}$
CM discriminant -15
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2280,1,Mod(179,2280)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2280, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 3, 3, 3, 1]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2280.179");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2280 = 2^{3} \cdot 3 \cdot 5 \cdot 19 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2280.cs (of order \(6\), 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: \(1.13786822880\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\zeta_{12})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{6}\)
Projective field: Galois closure of 6.2.1426233024000.1

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q + \zeta_{12}^{5} q^{2} - \zeta_{12} q^{3} - \zeta_{12}^{4} q^{4} + \zeta_{12} q^{5} + q^{6} + \zeta_{12}^{3} q^{8} + \zeta_{12}^{2} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{12}^{5} q^{2} - \zeta_{12} q^{3} - \zeta_{12}^{4} q^{4} + \zeta_{12} q^{5} + q^{6} + \zeta_{12}^{3} q^{8} + \zeta_{12}^{2} q^{9} - q^{10} + \zeta_{12}^{5} q^{12} - \zeta_{12}^{2} q^{15} - \zeta_{12}^{2} q^{16} + (\zeta_{12}^{5} + \zeta_{12}^{3}) q^{17} - \zeta_{12} q^{18} + \zeta_{12}^{4} q^{19} - \zeta_{12}^{5} q^{20} + \zeta_{12}^{5} q^{23} - \zeta_{12}^{4} q^{24} + \zeta_{12}^{2} q^{25} - \zeta_{12}^{3} q^{27} + \zeta_{12} q^{30} - q^{31} + \zeta_{12} q^{32} + ( - \zeta_{12}^{4} - \zeta_{12}^{2}) q^{34} + q^{36} - \zeta_{12}^{3} q^{38} + \zeta_{12}^{4} q^{40} + \zeta_{12}^{3} q^{45} - 2 \zeta_{12}^{4} q^{46} - \zeta_{12}^{5} q^{47} + \zeta_{12}^{3} q^{48} - q^{49} - \zeta_{12} q^{50} + ( - \zeta_{12}^{4} + 1) q^{51} + ( - \zeta_{12}^{3} - \zeta_{12}) q^{53} + \zeta_{12}^{2} q^{54} - \zeta_{12}^{5} q^{57} - q^{60} - \zeta_{12}^{5} q^{62} - q^{64} + (\zeta_{12}^{3} + \zeta_{12}) q^{68} + 2 q^{69} + \zeta_{12}^{5} q^{72} - \zeta_{12}^{3} q^{75} + \zeta_{12}^{2} q^{76} + \zeta_{12}^{4} q^{79} - \zeta_{12}^{3} q^{80} + \zeta_{12}^{4} q^{81} + ( - \zeta_{12}^{5} + \zeta_{12}) q^{83} + (\zeta_{12}^{4} - 1) q^{85} - \zeta_{12}^{2} q^{90} + 2 \zeta_{12}^{3} q^{92} + \zeta_{12} q^{93} + \zeta_{12}^{4} q^{94} + \zeta_{12}^{5} q^{95} - \zeta_{12}^{2} q^{96} - \zeta_{12}^{5} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 2 q^{4} + 4 q^{6} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 2 q^{4} + 4 q^{6} + 2 q^{9} - 4 q^{10} - 2 q^{15} - 2 q^{16} - 2 q^{19} + 2 q^{24} + 2 q^{25} - 4 q^{31} + 4 q^{36} - 2 q^{40} + 4 q^{46} - 4 q^{49} + 6 q^{51} + 2 q^{54} - 4 q^{60} - 4 q^{64} + 8 q^{69} + 2 q^{76} - 4 q^{79} - 2 q^{81} - 6 q^{85} - 2 q^{90} - 2 q^{94} - 2 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2280\mathbb{Z}\right)^\times\).

\(n\) \(457\) \(761\) \(1141\) \(1711\) \(1921\)
\(\chi(n)\) \(-1\) \(-1\) \(-1\) \(-1\) \(\zeta_{12}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
179.1
0.866025 + 0.500000i
−0.866025 0.500000i
0.866025 0.500000i
−0.866025 + 0.500000i
−0.866025 + 0.500000i −0.866025 0.500000i 0.500000 0.866025i 0.866025 + 0.500000i 1.00000 0 1.00000i 0.500000 + 0.866025i −1.00000
179.2 0.866025 0.500000i 0.866025 + 0.500000i 0.500000 0.866025i −0.866025 0.500000i 1.00000 0 1.00000i 0.500000 + 0.866025i −1.00000
1019.1 −0.866025 0.500000i −0.866025 + 0.500000i 0.500000 + 0.866025i 0.866025 0.500000i 1.00000 0 1.00000i 0.500000 0.866025i −1.00000
1019.2 0.866025 + 0.500000i 0.866025 0.500000i 0.500000 + 0.866025i −0.866025 + 0.500000i 1.00000 0 1.00000i 0.500000 0.866025i −1.00000
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
15.d odd 2 1 CM by \(\Q(\sqrt{-15}) \)
3.b odd 2 1 inner
5.b even 2 1 inner
152.o even 6 1 inner
456.s odd 6 1 inner
760.bf even 6 1 inner
2280.cs odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2280.1.cs.b yes 4
3.b odd 2 1 inner 2280.1.cs.b yes 4
5.b even 2 1 inner 2280.1.cs.b yes 4
8.d odd 2 1 2280.1.cs.a 4
15.d odd 2 1 CM 2280.1.cs.b yes 4
19.d odd 6 1 2280.1.cs.a 4
24.f even 2 1 2280.1.cs.a 4
40.e odd 2 1 2280.1.cs.a 4
57.f even 6 1 2280.1.cs.a 4
95.h odd 6 1 2280.1.cs.a 4
120.m even 2 1 2280.1.cs.a 4
152.o even 6 1 inner 2280.1.cs.b yes 4
285.q even 6 1 2280.1.cs.a 4
456.s odd 6 1 inner 2280.1.cs.b yes 4
760.bf even 6 1 inner 2280.1.cs.b yes 4
2280.cs odd 6 1 inner 2280.1.cs.b yes 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2280.1.cs.a 4 8.d odd 2 1
2280.1.cs.a 4 19.d odd 6 1
2280.1.cs.a 4 24.f even 2 1
2280.1.cs.a 4 40.e odd 2 1
2280.1.cs.a 4 57.f even 6 1
2280.1.cs.a 4 95.h odd 6 1
2280.1.cs.a 4 120.m even 2 1
2280.1.cs.a 4 285.q even 6 1
2280.1.cs.b yes 4 1.a even 1 1 trivial
2280.1.cs.b yes 4 3.b odd 2 1 inner
2280.1.cs.b yes 4 5.b even 2 1 inner
2280.1.cs.b yes 4 15.d odd 2 1 CM
2280.1.cs.b yes 4 152.o even 6 1 inner
2280.1.cs.b yes 4 456.s odd 6 1 inner
2280.1.cs.b yes 4 760.bf even 6 1 inner
2280.1.cs.b yes 4 2280.cs odd 6 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{31} + 1 \) acting on \(S_{1}^{\mathrm{new}}(2280, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} - T^{2} + 1 \) Copy content Toggle raw display
$3$ \( T^{4} - T^{2} + 1 \) Copy content Toggle raw display
$5$ \( T^{4} - T^{2} + 1 \) Copy content Toggle raw display
$7$ \( T^{4} \) Copy content Toggle raw display
$11$ \( T^{4} \) Copy content Toggle raw display
$13$ \( T^{4} \) Copy content Toggle raw display
$17$ \( T^{4} + 3T^{2} + 9 \) Copy content Toggle raw display
$19$ \( (T^{2} + T + 1)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} - 4T^{2} + 16 \) Copy content Toggle raw display
$29$ \( T^{4} \) Copy content Toggle raw display
$31$ \( (T + 1)^{4} \) Copy content Toggle raw display
$37$ \( T^{4} \) Copy content Toggle raw display
$41$ \( T^{4} \) Copy content Toggle raw display
$43$ \( T^{4} \) Copy content Toggle raw display
$47$ \( T^{4} - T^{2} + 1 \) Copy content Toggle raw display
$53$ \( T^{4} + 3T^{2} + 9 \) Copy content Toggle raw display
$59$ \( T^{4} \) Copy content Toggle raw display
$61$ \( T^{4} \) Copy content Toggle raw display
$67$ \( T^{4} \) Copy content Toggle raw display
$71$ \( T^{4} \) Copy content Toggle raw display
$73$ \( T^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} + 2 T + 4)^{2} \) Copy content Toggle raw display
$83$ \( (T^{2} - 3)^{2} \) Copy content Toggle raw display
$89$ \( T^{4} \) Copy content Toggle raw display
$97$ \( T^{4} \) Copy content Toggle raw display
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