Properties

Label 855.2.cz.a
Level $855$
Weight $2$
Character orbit 855.cz
Analytic conductor $6.827$
Analytic rank $0$
Dimension $696$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [855,2,Mod(14,855)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(855, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([15, 9, 7]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("855.14");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 855 = 3^{2} \cdot 5 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 855.cz (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: \(6.82720937282\)
Analytic rank: \(0\)
Dimension: \(696\)
Relative dimension: \(116\) 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.

\(\operatorname{Tr}(f)(q) = \) \( 696 q - 6 q^{4} - 9 q^{5} - 12 q^{6} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 696 q - 6 q^{4} - 9 q^{5} - 12 q^{6} - 12 q^{9} - 12 q^{10} - 18 q^{14} - 12 q^{15} + 6 q^{16} - 24 q^{19} - 18 q^{20} - 30 q^{21} - 84 q^{24} - 3 q^{25} - 72 q^{26} - 18 q^{29} + 39 q^{30} - 42 q^{34} - 45 q^{35} - 24 q^{36} - 36 q^{39} - 21 q^{40} - 18 q^{41} + 72 q^{44} - 3 q^{45} - 36 q^{46} + 282 q^{49} + 126 q^{50} + 6 q^{51} - 24 q^{54} + 3 q^{55} - 126 q^{56} - 18 q^{59} + 135 q^{60} - 6 q^{61} + 234 q^{64} - 18 q^{65} + 72 q^{66} - 18 q^{69} - 45 q^{70} - 54 q^{74} - 6 q^{76} - 6 q^{79} + 126 q^{80} - 144 q^{81} - 234 q^{84} - 3 q^{85} - 180 q^{86} - 69 q^{90} + 18 q^{91} - 117 q^{95} - 12 q^{99}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
14.1 −1.77614 + 2.11672i 1.51097 0.846736i −0.978542 5.54959i −1.54846 1.61316i −0.891397 + 4.70223i −2.46545 1.42343i 8.69899 + 5.02236i 1.56608 2.55879i 6.16489 0.412452i
14.2 −1.76414 + 2.10241i −1.58681 + 0.694292i −0.960677 5.44827i 1.87700 1.21527i 1.33966 4.56095i 1.39961 + 0.808064i 8.39566 + 4.84724i 2.03592 2.20341i −0.756278 + 6.09013i
14.3 −1.71799 + 2.04742i −1.17262 1.27474i −0.893139 5.06524i −1.95207 + 1.09061i 4.62447 0.210851i 3.46780 + 2.00214i 7.27579 + 4.20068i −0.249930 + 2.98957i 1.12069 5.87035i
14.4 −1.70294 + 2.02948i −0.0545835 1.73119i −0.871504 4.94255i 0.873283 2.05849i 3.60637 + 2.83733i 1.45981 + 0.842821i 6.92620 + 3.99884i −2.99404 + 0.188989i 2.69052 + 5.27779i
14.5 −1.68283 + 2.00552i 0.951558 + 1.44725i −0.842888 4.78025i −2.21135 0.331573i −4.50379 0.527109i 1.83271 + 1.05812i 6.47077 + 3.73590i −1.18907 + 2.75429i 4.38629 3.87691i
14.6 −1.68210 + 2.00465i −1.60863 0.642108i −0.841859 4.77442i 1.22127 + 1.87310i 3.99308 2.14465i −3.40312 1.96480i 6.45455 + 3.72654i 2.17540 + 2.06583i −5.80920 0.702537i
14.7 −1.64122 + 1.95593i 0.705083 + 1.58204i −0.784757 4.45058i 1.44263 1.70846i −4.25155 1.21738i −0.160015 0.0923848i 5.57054 + 3.21616i −2.00572 + 2.23094i 0.973959 + 5.62562i
14.8 −1.62873 + 1.94105i −0.797598 + 1.53748i −0.767598 4.35326i −1.43402 + 1.71569i −1.68524 4.05231i −1.31230 0.757658i 5.31133 + 3.06650i −1.72768 2.45258i −0.994612 5.57789i
14.9 −1.60758 + 1.91584i 0.760442 1.55619i −0.738831 4.19012i −0.235270 + 2.22366i 1.75894 + 3.95859i −1.31478 0.759090i 4.88355 + 2.81952i −1.84345 2.36679i −3.88195 4.02545i
14.10 −1.54282 + 1.83866i 1.65654 + 0.505843i −0.653086 3.70384i 2.20079 0.395653i −3.48582 + 2.26539i −4.16840 2.40663i 3.66043 + 2.11335i 2.48824 + 1.67590i −2.66795 + 4.65692i
14.11 −1.53614 + 1.83070i −0.699278 + 1.58462i −0.644441 3.65480i −0.626608 2.14648i −1.82677 3.71436i −3.41261 1.97027i 3.54153 + 2.04470i −2.02202 2.21617i 4.89211 + 2.15016i
14.12 −1.51114 + 1.80091i −1.18229 + 1.26578i −0.612427 3.47325i 1.04367 + 1.97756i −0.492948 4.04197i 2.60897 + 1.50629i 3.10856 + 1.79473i −0.204391 2.99303i −5.13855 1.10881i
14.13 −1.50851 + 1.79777i −1.56326 0.745802i −0.609084 3.45429i −0.715069 2.11865i 3.69897 1.68533i −1.42633 0.823492i 3.06401 + 1.76900i 1.88756 + 2.33176i 4.88753 + 1.91047i
14.14 −1.46406 + 1.74480i 0.525134 + 1.65053i −0.553555 3.13937i 2.04894 + 0.895466i −3.64866 1.50022i 2.70425 + 1.56130i 2.34296 + 1.35271i −2.44847 + 1.73349i −4.56218 + 2.26397i
14.15 −1.42588 + 1.69930i 1.73161 0.0389454i −0.507183 2.87638i −0.193815 2.22765i −2.40289 + 2.99806i 3.61440 + 2.08678i 1.76884 + 1.02124i 2.99697 0.134877i 4.06180 + 2.84702i
14.16 −1.40874 + 1.67887i 1.39325 1.02901i −0.486763 2.76057i 2.23338 + 0.109709i −0.235154 + 3.78869i −0.222994 0.128745i 1.52439 + 0.880105i 0.882286 2.86733i −3.33043 + 3.59500i
14.17 −1.36140 + 1.62245i 1.58033 + 0.708916i −0.431650 2.44801i −0.0758389 + 2.23478i −3.30165 + 1.59889i 0.240473 + 0.138837i 0.891010 + 0.514425i 1.99487 + 2.24064i −3.52258 3.16548i
14.18 −1.34790 + 1.60636i −0.762023 1.55542i −0.416276 2.36082i −1.93409 1.12219i 3.52570 + 0.872458i −1.41860 0.819030i 0.721389 + 0.416494i −1.83864 + 2.37053i 4.40960 1.59424i
14.19 −1.33489 + 1.59086i 1.37265 1.05633i −0.401612 2.27765i −1.89785 + 1.18244i −0.151868 + 3.59379i 3.74330 + 2.16120i 0.562552 + 0.324790i 0.768341 2.89994i 0.652334 4.59765i
14.20 −1.28192 + 1.52773i −1.61982 + 0.613343i −0.343348 1.94722i −1.51571 1.64396i 1.13945 3.26089i 3.34053 + 1.92865i −0.0392757 0.0226758i 2.24762 1.98701i 4.45454 0.208176i
See next 80 embeddings (of 696 total)
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 14.116
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
171.x even 18 1 inner
855.cz even 18 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 855.2.cz.a yes 696
5.b even 2 1 inner 855.2.cz.a yes 696
9.d odd 6 1 855.2.co.a 696
19.f odd 18 1 855.2.co.a 696
45.h odd 6 1 855.2.co.a 696
95.o odd 18 1 855.2.co.a 696
171.x even 18 1 inner 855.2.cz.a yes 696
855.cz even 18 1 inner 855.2.cz.a yes 696
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
855.2.co.a 696 9.d odd 6 1
855.2.co.a 696 19.f odd 18 1
855.2.co.a 696 45.h odd 6 1
855.2.co.a 696 95.o odd 18 1
855.2.cz.a yes 696 1.a even 1 1 trivial
855.2.cz.a yes 696 5.b even 2 1 inner
855.2.cz.a yes 696 171.x even 18 1 inner
855.2.cz.a yes 696 855.cz even 18 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(855, [\chi])\).