Properties

Label 768.2.n.a
Level $768$
Weight $2$
Character orbit 768.n
Analytic conductor $6.133$
Analytic rank $0$
Dimension $32$
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] = [768,2,Mod(97,768)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(768, base_ring=CyclotomicField(8))
 
chi = DirichletCharacter(H, H._module([0, 5, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("768.97");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 768 = 2^{8} \cdot 3 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 768.n (of order \(8\), degree \(4\), not 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: \(6.13251087523\)
Analytic rank: \(0\)
Dimension: \(32\)
Relative dimension: \(8\) over \(\Q(\zeta_{8})\)
Twist minimal: no (minimal twist has level 96)
Sato-Tate group: $\mathrm{SU}(2)[C_{8}]$

$q$-expansion

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

\(\operatorname{Tr}(f)(q) = \) \( 32 q+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 32 q - 16 q^{23} - 48 q^{31} + 48 q^{35} + 16 q^{43} - 16 q^{51} + 32 q^{53} + 32 q^{55} - 64 q^{59} + 32 q^{61} + 16 q^{63} - 16 q^{67} + 32 q^{69} + 64 q^{71} - 32 q^{75} + 32 q^{77} + 48 q^{91}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
97.1 0 −0.923880 + 0.382683i 0 −0.750897 + 1.81283i 0 0.638460 + 0.638460i 0 0.707107 0.707107i 0
97.2 0 −0.923880 + 0.382683i 0 0.00259461 0.00626394i 0 −2.41880 2.41880i 0 0.707107 0.707107i 0
97.3 0 −0.923880 + 0.382683i 0 0.155637 0.375742i 0 0.709092 + 0.709092i 0 0.707107 0.707107i 0
97.4 0 −0.923880 + 0.382683i 0 1.35803 3.27858i 0 2.48546 + 2.48546i 0 0.707107 0.707107i 0
97.5 0 0.923880 0.382683i 0 −1.36206 + 3.28830i 0 −2.73097 2.73097i 0 0.707107 0.707107i 0
97.6 0 0.923880 0.382683i 0 −0.705805 + 1.70396i 0 3.24150 + 3.24150i 0 0.707107 0.707107i 0
97.7 0 0.923880 0.382683i 0 −0.184062 + 0.444366i 0 −0.134531 0.134531i 0 0.707107 0.707107i 0
97.8 0 0.923880 0.382683i 0 1.48656 3.58888i 0 1.03821 + 1.03821i 0 0.707107 0.707107i 0
289.1 0 −0.382683 + 0.923880i 0 −3.68816 + 1.52768i 0 −1.63704 + 1.63704i 0 −0.707107 0.707107i 0
289.2 0 −0.382683 + 0.923880i 0 −0.825824 + 0.342068i 0 1.17750 1.17750i 0 −0.707107 0.707107i 0
289.3 0 −0.382683 + 0.923880i 0 1.20409 0.498752i 0 2.59422 2.59422i 0 −0.707107 0.707107i 0
289.4 0 −0.382683 + 0.923880i 0 1.46213 0.605634i 0 −3.54889 + 3.54889i 0 −0.707107 0.707107i 0
289.5 0 0.382683 0.923880i 0 −2.14986 + 0.890503i 0 −1.10001 + 1.10001i 0 −0.707107 0.707107i 0
289.6 0 0.382683 0.923880i 0 −1.60930 + 0.666593i 0 −0.589445 + 0.589445i 0 −0.707107 0.707107i 0
289.7 0 0.382683 0.923880i 0 2.51374 1.04122i 0 2.01027 2.01027i 0 −0.707107 0.707107i 0
289.8 0 0.382683 0.923880i 0 3.09318 1.28124i 0 −1.73503 + 1.73503i 0 −0.707107 0.707107i 0
481.1 0 −0.382683 0.923880i 0 −3.68816 1.52768i 0 −1.63704 1.63704i 0 −0.707107 + 0.707107i 0
481.2 0 −0.382683 0.923880i 0 −0.825824 0.342068i 0 1.17750 + 1.17750i 0 −0.707107 + 0.707107i 0
481.3 0 −0.382683 0.923880i 0 1.20409 + 0.498752i 0 2.59422 + 2.59422i 0 −0.707107 + 0.707107i 0
481.4 0 −0.382683 0.923880i 0 1.46213 + 0.605634i 0 −3.54889 3.54889i 0 −0.707107 + 0.707107i 0
See all 32 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 97.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
32.g even 8 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 768.2.n.a 32
4.b odd 2 1 768.2.n.b 32
8.b even 2 1 96.2.n.a 32
8.d odd 2 1 384.2.n.a 32
24.f even 2 1 1152.2.v.c 32
24.h odd 2 1 288.2.v.d 32
32.g even 8 1 96.2.n.a 32
32.g even 8 1 inner 768.2.n.a 32
32.h odd 8 1 384.2.n.a 32
32.h odd 8 1 768.2.n.b 32
96.o even 8 1 1152.2.v.c 32
96.p odd 8 1 288.2.v.d 32
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
96.2.n.a 32 8.b even 2 1
96.2.n.a 32 32.g even 8 1
288.2.v.d 32 24.h odd 2 1
288.2.v.d 32 96.p odd 8 1
384.2.n.a 32 8.d odd 2 1
384.2.n.a 32 32.h odd 8 1
768.2.n.a 32 1.a even 1 1 trivial
768.2.n.a 32 32.g even 8 1 inner
768.2.n.b 32 4.b odd 2 1
768.2.n.b 32 32.h odd 8 1
1152.2.v.c 32 24.f even 2 1
1152.2.v.c 32 96.o even 8 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{32} - 16 T_{7}^{29} + 960 T_{7}^{28} - 352 T_{7}^{27} + 128 T_{7}^{26} - 7328 T_{7}^{25} + \cdots + 1195499776 \) acting on \(S_{2}^{\mathrm{new}}(768, [\chi])\). Copy content Toggle raw display