Properties

Label 2340.2.bc.a
Level $2340$
Weight $2$
Character orbit 2340.bc
Analytic conductor $18.685$
Analytic rank $0$
Dimension $56$
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] = [2340,2,Mod(629,2340)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2340, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 2, 2, 3]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2340.629");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2340 = 2^{2} \cdot 3^{2} \cdot 5 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2340.bc (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: \(18.6849940730\)
Analytic rank: \(0\)
Dimension: \(56\)
Relative dimension: \(28\) over \(\Q(i)\)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-expansion

The dimension is sufficiently large that we do not compute an algebraic \(q\)-expansion, but we have computed the trace expansion.

\(\operatorname{Tr}(f)(q) = \) \( 56 q+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 56 q + 32 q^{19} + 32 q^{31} + 32 q^{55} - 16 q^{79} + 48 q^{91}+O(q^{100}) \) Copy content Toggle raw display

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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
629.1 0 0 0 −2.22721 0.198795i 0 −1.01960 + 1.01960i 0 0 0
629.2 0 0 0 −2.21980 + 0.269206i 0 −0.644393 + 0.644393i 0 0 0
629.3 0 0 0 −2.17955 + 0.499581i 0 3.20502 3.20502i 0 0 0
629.4 0 0 0 −2.10597 + 0.751602i 0 −0.282581 + 0.282581i 0 0 0
629.5 0 0 0 −1.90513 1.17067i 0 1.63133 1.63133i 0 0 0
629.6 0 0 0 −1.82913 + 1.28619i 0 −2.70086 + 2.70086i 0 0 0
629.7 0 0 0 −1.73294 1.41312i 0 −2.28851 + 2.28851i 0 0 0
629.8 0 0 0 −1.41312 1.73294i 0 2.28851 2.28851i 0 0 0
629.9 0 0 0 −1.28619 + 1.82913i 0 2.70086 2.70086i 0 0 0
629.10 0 0 0 −1.17067 1.90513i 0 −1.63133 + 1.63133i 0 0 0
629.11 0 0 0 −0.751602 + 2.10597i 0 0.282581 0.282581i 0 0 0
629.12 0 0 0 −0.499581 + 2.17955i 0 −3.20502 + 3.20502i 0 0 0
629.13 0 0 0 −0.269206 + 2.21980i 0 0.644393 0.644393i 0 0 0
629.14 0 0 0 −0.198795 2.22721i 0 1.01960 1.01960i 0 0 0
629.15 0 0 0 0.198795 + 2.22721i 0 1.01960 1.01960i 0 0 0
629.16 0 0 0 0.269206 2.21980i 0 0.644393 0.644393i 0 0 0
629.17 0 0 0 0.499581 2.17955i 0 −3.20502 + 3.20502i 0 0 0
629.18 0 0 0 0.751602 2.10597i 0 0.282581 0.282581i 0 0 0
629.19 0 0 0 1.17067 + 1.90513i 0 −1.63133 + 1.63133i 0 0 0
629.20 0 0 0 1.28619 1.82913i 0 2.70086 2.70086i 0 0 0
See all 56 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 629.28
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
13.d odd 4 1 inner
15.d odd 2 1 inner
39.f even 4 1 inner
65.g odd 4 1 inner
195.n even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2340.2.bc.a 56
3.b odd 2 1 inner 2340.2.bc.a 56
5.b even 2 1 inner 2340.2.bc.a 56
13.d odd 4 1 inner 2340.2.bc.a 56
15.d odd 2 1 inner 2340.2.bc.a 56
39.f even 4 1 inner 2340.2.bc.a 56
65.g odd 4 1 inner 2340.2.bc.a 56
195.n even 4 1 inner 2340.2.bc.a 56
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2340.2.bc.a 56 1.a even 1 1 trivial
2340.2.bc.a 56 3.b odd 2 1 inner
2340.2.bc.a 56 5.b even 2 1 inner
2340.2.bc.a 56 13.d odd 4 1 inner
2340.2.bc.a 56 15.d odd 2 1 inner
2340.2.bc.a 56 39.f even 4 1 inner
2340.2.bc.a 56 65.g odd 4 1 inner
2340.2.bc.a 56 195.n even 4 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(2340, [\chi])\).