Properties

Label 128.8.e.b
Level $128$
Weight $8$
Character orbit 128.e
Analytic conductor $39.985$
Analytic rank $0$
Dimension $26$
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] = [128,8,Mod(33,128)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(128, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 3]))
 
N = Newforms(chi, 8, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("128.33");
 
S:= CuspForms(chi, 8);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 128 = 2^{7} \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 128.e (of order \(4\), degree \(2\), 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: \(39.9852832620\)
Analytic rank: \(0\)
Dimension: \(26\)
Relative dimension: \(13\) over \(\Q(i)\)
Twist minimal: no (minimal twist has level 16)
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.

\(\operatorname{Tr}(f)(q) = \) \( 26 q + 2 q^{3} + 2 q^{5}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 26 q + 2 q^{3} + 2 q^{5} - 1202 q^{11} + 2 q^{13} - 27004 q^{15} - 4 q^{17} - 60582 q^{19} - 4372 q^{21} + 233672 q^{27} + 51690 q^{29} + 357488 q^{31} - 4 q^{33} + 252004 q^{35} - 415574 q^{37} - 569754 q^{43} - 151874 q^{45} - 2076464 q^{47} - 1647090 q^{49} - 2609508 q^{51} - 907814 q^{53} + 4865142 q^{59} - 2279886 q^{61} + 8295108 q^{63} - 1426892 q^{65} + 5564458 q^{67} + 4786076 q^{69} - 6212566 q^{75} - 7604308 q^{77} - 9598912 q^{79} - 5314414 q^{81} - 4531198 q^{83} - 7377748 q^{85} - 2587652 q^{91} + 14504144 q^{93} - 4900620 q^{95} - 4 q^{97} - 18815006 q^{99}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
33.1 0 −61.7547 61.7547i 0 −160.824 + 160.824i 0 1202.46i 0 5440.30i 0
33.2 0 −50.5872 50.5872i 0 364.370 364.370i 0 182.346i 0 2931.14i 0
33.3 0 −42.2145 42.2145i 0 −46.9348 + 46.9348i 0 1384.27i 0 1377.13i 0
33.4 0 −26.1364 26.1364i 0 31.6175 31.6175i 0 444.381i 0 820.775i 0
33.5 0 −20.1662 20.1662i 0 −269.345 + 269.345i 0 147.771i 0 1373.65i 0
33.6 0 −8.25573 8.25573i 0 −63.0500 + 63.0500i 0 847.676i 0 2050.69i 0
33.7 0 −2.27414 2.27414i 0 242.456 242.456i 0 1642.72i 0 2176.66i 0
33.8 0 12.2643 + 12.2643i 0 210.432 210.432i 0 920.183i 0 1886.17i 0
33.9 0 21.1050 + 21.1050i 0 −328.807 + 328.807i 0 874.718i 0 1296.15i 0
33.10 0 35.6625 + 35.6625i 0 −50.2015 + 50.2015i 0 699.226i 0 356.628i 0
33.11 0 37.3394 + 37.3394i 0 233.214 233.214i 0 241.506i 0 601.466i 0
33.12 0 49.4488 + 49.4488i 0 −252.094 + 252.094i 0 1482.88i 0 2703.37i 0
33.13 0 56.5688 + 56.5688i 0 90.1684 90.1684i 0 373.897i 0 4213.06i 0
97.1 0 −61.7547 + 61.7547i 0 −160.824 160.824i 0 1202.46i 0 5440.30i 0
97.2 0 −50.5872 + 50.5872i 0 364.370 + 364.370i 0 182.346i 0 2931.14i 0
97.3 0 −42.2145 + 42.2145i 0 −46.9348 46.9348i 0 1384.27i 0 1377.13i 0
97.4 0 −26.1364 + 26.1364i 0 31.6175 + 31.6175i 0 444.381i 0 820.775i 0
97.5 0 −20.1662 + 20.1662i 0 −269.345 269.345i 0 147.771i 0 1373.65i 0
97.6 0 −8.25573 + 8.25573i 0 −63.0500 63.0500i 0 847.676i 0 2050.69i 0
97.7 0 −2.27414 + 2.27414i 0 242.456 + 242.456i 0 1642.72i 0 2176.66i 0
See all 26 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 33.13
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
16.e even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 128.8.e.b 26
4.b odd 2 1 128.8.e.a 26
8.b even 2 1 16.8.e.a 26
8.d odd 2 1 64.8.e.a 26
16.e even 4 1 16.8.e.a 26
16.e even 4 1 inner 128.8.e.b 26
16.f odd 4 1 64.8.e.a 26
16.f odd 4 1 128.8.e.a 26
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
16.8.e.a 26 8.b even 2 1
16.8.e.a 26 16.e even 4 1
64.8.e.a 26 8.d odd 2 1
64.8.e.a 26 16.f odd 4 1
128.8.e.a 26 4.b odd 2 1
128.8.e.a 26 16.f odd 4 1
128.8.e.b 26 1.a even 1 1 trivial
128.8.e.b 26 16.e even 4 1 inner