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Properties

Label 378.2.bf.a
Level $378$
Weight $2$
Character orbit 378.bf
Analytic conductor $3.018$
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] = [378,2,Mod(5,378)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(378, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([5, 15]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("378.5");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 378 = 2 \cdot 3^{3} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 378.bf (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: \(3.01834519640\)
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.

\(\operatorname{Tr}(f)(q) = \) \( 144 q + 18 q^{6} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 144 q + 18 q^{6} - 12 q^{9} + 12 q^{11} + 6 q^{14} + 12 q^{15} + 6 q^{21} - 6 q^{23} - 6 q^{29} - 18 q^{30} - 54 q^{35} + 6 q^{36} - 6 q^{39} + 24 q^{42} - 54 q^{47} + 18 q^{49} + 12 q^{50} + 18 q^{51} + 90 q^{53} - 54 q^{54} - 12 q^{56} - 6 q^{57} - 90 q^{59} - 36 q^{60} - 24 q^{63} + 72 q^{64} - 84 q^{65} - 36 q^{69} - 18 q^{70} - 72 q^{71} + 12 q^{72} + 18 q^{74} - 90 q^{75} - 78 q^{77} - 60 q^{78} + 36 q^{79} - 6 q^{84} - 72 q^{85} + 24 q^{86} + 90 q^{87} - 18 q^{91} - 42 q^{92} - 12 q^{93} + 78 q^{95} - 36 q^{98} - 108 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Display 100 coefficients 10 coefficients

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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
5.1 −0.984808 + 0.173648i −1.69494 − 0.356630i 0.939693 − 0.342020i 0.295406 − 1.67533i 1.73112 + 0.0568892i 2.46278 − 0.966803i −0.866025 + 0.500000i 2.74563 + 1.20893i 1.70117i
5.2 −0.984808 + 0.173648i −1.68531 + 0.399650i 0.939693 − 0.342020i −0.662712 + 3.75843i 1.59031 − 0.686230i −0.925433 + 2.47862i −0.866025 + 0.500000i 2.68056 − 1.34707i − 3.81641i
5.3 −0.984808 + 0.173648i −1.31364 − 1.12887i 0.939693 − 0.342020i −0.00506474 + 0.0287236i 1.48971 + 0.883607i −2.31258 + 1.28530i −0.866025 + 0.500000i 0.451313 + 2.96586i − 0.0291667i
5.4 −0.984808 + 0.173648i −0.906167 + 1.47610i 0.939693 − 0.342020i 0.392637 − 2.22675i 0.636079 − 1.61103i 1.14836 + 2.38354i −0.866025 + 0.500000i −1.35772 − 2.67518i 2.26111i
5.5 −0.984808 + 0.173648i −0.755599 + 1.55855i 0.939693 − 0.342020i −0.0946220 + 0.536628i 0.473481 − 1.66608i −2.19872 − 1.47161i −0.866025 + 0.500000i −1.85814 − 2.35527i − 0.544906i
5.6 −0.984808 + 0.173648i −0.542374 − 1.64494i 0.939693 − 0.342020i 0.381353 − 2.16276i 0.819775 + 1.52577i −1.53538 − 2.15467i −0.866025 + 0.500000i −2.41166 + 1.78435i 2.19613i
5.7 −0.984808 + 0.173648i −0.507755 − 1.65595i 0.939693 − 0.342020i −0.693451 + 3.93276i 0.787595 + 1.54263i 1.74878 − 1.98539i −0.866025 + 0.500000i −2.48437 + 1.68164i − 3.99342i
5.8 −0.984808 + 0.173648i 0.801094 − 1.53566i 0.939693 − 0.342020i 0.703607 − 3.99035i −0.522259 + 1.65144i 2.53004 + 0.773898i −0.866025 + 0.500000i −1.71650 − 2.46041i 4.05191i
5.9 −0.984808 + 0.173648i 0.891925 + 1.48475i 0.939693 − 0.342020i 0.217432 − 1.23312i −1.13620 − 1.30731i −2.23659 + 1.41339i −0.866025 + 0.500000i −1.40894 + 2.64856i 1.25214i
5.10 −0.984808 + 0.173648i 1.22171 + 1.22777i 0.939693 − 0.342020i 0.204833 − 1.16167i −1.41635 − 0.996970i 1.70692 − 2.02149i −0.866025 + 0.500000i −0.0148421 + 2.99996i 1.17959i
5.11 −0.984808 + 0.173648i 1.43254 − 0.973561i 0.939693 − 0.342020i −0.404896 + 2.29628i −1.24172 + 1.20753i −2.01803 − 1.71101i −0.866025 + 0.500000i 1.10436 − 2.78934i − 2.33170i
5.12 −0.984808 + 0.173648i 1.73169 + 0.0354625i 0.939693 − 0.342020i −0.334523 + 1.89717i −1.71154 + 0.265781i 2.15385 + 1.53653i −0.866025 + 0.500000i 2.99748 + 0.122820i − 1.92644i
5.13 0.984808 − 0.173648i −1.73120 − 0.0542063i 0.939693 − 0.342020i −0.139489 + 0.791082i −1.71431 + 0.247237i 1.46739 + 2.20154i 0.866025 − 0.500000i 2.99412 + 0.187684i 0.803286i
5.14 0.984808 − 0.173648i −1.68862 + 0.385431i 0.939693 − 0.342020i 0.136034 − 0.771489i −1.59604 + 0.672801i −2.64466 + 0.0761338i 0.866025 − 0.500000i 2.70289 − 1.30169i − 0.783391i
5.15 0.984808 − 0.173648i −1.15375 + 1.29185i 0.939693 − 0.342020i 0.485901 − 2.75568i −0.911891 + 1.47257i 1.15554 − 2.38007i 0.866025 − 0.500000i −0.337739 − 2.98093i − 2.79820i
5.16 0.984808 − 0.173648i −0.926008 − 1.46373i 0.939693 − 0.342020i 0.475930 − 2.69913i −1.16611 − 1.28069i 2.49768 + 0.872702i 0.866025 − 0.500000i −1.28502 + 2.71085i − 2.74077i
5.17 0.984808 − 0.173648i −0.424397 + 1.67925i 0.939693 − 0.342020i −0.661063 + 3.74907i −0.126350 + 1.72744i −2.47370 − 0.938514i 0.866025 − 0.500000i −2.63977 − 1.42534i 3.80691i
5.18 0.984808 − 0.173648i 0.228430 − 1.71692i 0.939693 − 0.342020i 0.0564431 − 0.320105i −0.0731809 − 1.73050i −0.543232 − 2.58938i 0.866025 − 0.500000i −2.89564 − 0.784392i − 0.325043i
5.19 0.984808 − 0.173648i 0.261649 + 1.71217i 0.939693 − 0.342020i −0.00558222 + 0.0316584i 0.554990 + 1.64073i 2.62068 − 0.363383i 0.866025 − 0.500000i −2.86308 + 0.895977i 0.0321467i
5.20 0.984808 − 0.173648i 0.963600 − 1.43926i 0.939693 − 0.342020i −0.689038 + 3.90773i 0.699036 − 1.58472i 0.360258 + 2.62111i 0.866025 − 0.500000i −1.14295 − 2.77375i 3.96801i
See next 80 embeddings (of 144 total)
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 5.24
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 378.2.bf.a yes 144
7.d odd 6 1 378.2.ba.a ✓ 144
27.f odd 18 1 378.2.ba.a ✓ 144
189.ba even 18 1 inner 378.2.bf.a yes 144
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
378.2.ba.a ✓ 144 7.d odd 6 1
378.2.ba.a ✓ 144 27.f odd 18 1
378.2.bf.a yes 144 1.a even 1 1 trivial
378.2.bf.a yes 144 189.ba even 18 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(378, [\chi])\).