Properties

Label 756.2.ca.a
Level $756$
Weight $2$
Character orbit 756.ca
Analytic conductor $6.037$
Analytic rank $0$
Dimension $144$
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] = [756,2,Mod(173,756)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(756, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([0, 13, 15]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("756.173");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 756 = 2^{2} \cdot 3^{3} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 756.ca (of order \(18\), degree \(6\), 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: \(6.03669039281\)
Analytic rank: \(0\)
Dimension: \(144\)
Relative dimension: \(24\) over \(\Q(\zeta_{18})\)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{18}]$

$q$-expansion

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

\(\operatorname{Tr}(f)(q) = \) \( 144 q - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 144 q - 12 q^{9} + 12 q^{11} + 12 q^{15} - 3 q^{21} - 15 q^{23} - 6 q^{29} - 42 q^{39} + 18 q^{45} - 54 q^{47} - 36 q^{49} + 18 q^{51} + 45 q^{53} + 3 q^{57} + 54 q^{61} + 39 q^{63} - 3 q^{65} + 36 q^{69} + 36 q^{71} + 93 q^{77} - 18 q^{79} - 36 q^{81} + 36 q^{85} - 18 q^{91} + 60 q^{93} + 6 q^{95}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
173.1 0 −1.73005 0.0832183i 0 0.849177 0.712544i 0 −0.774464 + 2.52986i 0 2.98615 + 0.287944i 0
173.2 0 −1.69481 0.357227i 0 1.90051 1.59472i 0 1.42097 2.23178i 0 2.74478 + 1.21086i 0
173.3 0 −1.38241 1.04352i 0 −2.01034 + 1.68687i 0 −2.51700 0.815311i 0 0.822127 + 2.88515i 0
173.4 0 −1.34169 1.09539i 0 −2.77975 + 2.33249i 0 2.63835 0.197791i 0 0.600250 + 2.93934i 0
173.5 0 −1.31760 + 1.12424i 0 −2.86428 + 2.40342i 0 −1.48545 + 2.18939i 0 0.472151 2.96261i 0
173.6 0 −1.31609 + 1.12602i 0 −0.481690 + 0.404186i 0 2.64564 + 0.0243961i 0 0.464163 2.96387i 0
173.7 0 −1.16896 + 1.27810i 0 0.898527 0.753954i 0 −1.31798 2.29411i 0 −0.267080 2.98809i 0
173.8 0 −1.04679 1.37994i 0 0.700470 0.587764i 0 −0.673988 + 2.55846i 0 −0.808445 + 2.88902i 0
173.9 0 −0.586799 1.62962i 0 3.01033 2.52597i 0 −2.34045 1.23381i 0 −2.31133 + 1.91252i 0
173.10 0 −0.568097 + 1.63624i 0 3.32029 2.78605i 0 1.31877 + 2.29366i 0 −2.35453 1.85908i 0
173.11 0 −0.385495 1.68861i 0 −1.16198 + 0.975020i 0 0.818663 2.51591i 0 −2.70279 + 1.30190i 0
173.12 0 −0.267657 + 1.71125i 0 0.977821 0.820489i 0 −2.63440 0.244842i 0 −2.85672 0.916052i 0
173.13 0 0.0527582 + 1.73125i 0 −3.03928 + 2.55026i 0 0.308602 2.62769i 0 −2.99443 + 0.182675i 0
173.14 0 0.280100 1.70925i 0 −0.516309 + 0.433235i 0 1.59408 + 2.11161i 0 −2.84309 0.957524i 0
173.15 0 0.294282 + 1.70687i 0 −0.796960 + 0.668729i 0 0.995586 + 2.45129i 0 −2.82680 + 1.00460i 0
173.16 0 0.785443 1.54372i 0 1.98604 1.66648i 0 2.56407 0.652322i 0 −1.76616 2.42501i 0
173.17 0 0.839673 1.51491i 0 −1.81938 + 1.52664i 0 −2.37423 + 1.16749i 0 −1.58990 2.54406i 0
173.18 0 1.12890 + 1.31362i 0 0.424429 0.356139i 0 −2.49967 + 0.866968i 0 −0.451185 + 2.96588i 0
173.19 0 1.37133 + 1.05805i 0 −1.39267 + 1.16859i 0 0.270511 2.63189i 0 0.761074 + 2.90186i 0
173.20 0 1.47752 + 0.903842i 0 1.37147 1.15080i 0 2.42417 1.05990i 0 1.36614 + 2.67089i 0
See next 80 embeddings (of 144 total)
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 173.24
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
189.bd even 18 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 756.2.ca.a 144
7.d odd 6 1 756.2.ck.a yes 144
27.f odd 18 1 756.2.ck.a yes 144
189.bd even 18 1 inner 756.2.ca.a 144
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
756.2.ca.a 144 1.a even 1 1 trivial
756.2.ca.a 144 189.bd even 18 1 inner
756.2.ck.a yes 144 7.d odd 6 1
756.2.ck.a yes 144 27.f odd 18 1

Hecke kernels

This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(756, [\chi])\).