Properties

Label 381.2.g.c
Level $381$
Weight $2$
Character orbit 381.g
Analytic conductor $3.042$
Analytic rank $0$
Dimension $72$
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] = [381,2,Mod(20,381)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(381, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("381.20");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 381 = 3 \cdot 127 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 381.g (of order \(6\), degree \(2\), 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: \(3.04230031701\)
Analytic rank: \(0\)
Dimension: \(72\)
Relative dimension: \(36\) over \(\Q(\zeta_{6})\)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-expansion

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

\(\operatorname{Tr}(f)(q) = \) \( 72 q - 72 q^{4} - 9 q^{6} - 6 q^{7}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 72 q - 72 q^{4} - 9 q^{6} - 6 q^{7} - 18 q^{12} - 12 q^{13} - q^{15} + 72 q^{16} - 12 q^{18} - 52 q^{19} - 28 q^{21} + 48 q^{22} - 9 q^{24} + 52 q^{25} - 54 q^{28} - 15 q^{30} - 22 q^{31} + 4 q^{34} + 27 q^{36} - 22 q^{37} - 42 q^{39} + q^{42} + 60 q^{43} - 42 q^{45} - 36 q^{46} + 3 q^{48} + 74 q^{49} + 64 q^{52} + 42 q^{55} - 18 q^{57} + 18 q^{58} + 20 q^{60} - 28 q^{61} + 60 q^{64} - 18 q^{67} + 12 q^{69} + 12 q^{70} + 13 q^{72} - 68 q^{73} + 6 q^{75} + 96 q^{76} - 150 q^{78} - 14 q^{79} + 44 q^{81} + 2 q^{82} + 75 q^{84} + 62 q^{87} + 40 q^{88} - 60 q^{90} - 96 q^{91} + 3 q^{93} - 112 q^{94} - 54 q^{96} - 90 q^{97} + 46 q^{99}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
20.1 2.71445i −0.518986 1.65247i −5.36824 0.893206 −4.48554 + 1.40876i −1.99265 + 1.15046i 9.14292i −2.46131 + 1.71522i 2.42456i
20.2 2.52018i 1.72695 + 0.132856i −4.35132 2.75121 0.334820 4.35222i −0.393176 + 0.227000i 5.92576i 2.96470 + 0.458869i 6.93355i
20.3 2.51015i −0.291859 + 1.70728i −4.30086 −1.12928 4.28554 + 0.732611i 4.45267 2.57075i 5.77550i −2.82964 0.996573i 2.83467i
20.4 2.41695i 0.744448 + 1.56390i −3.84163 −1.78400 3.77987 1.79929i −3.12854 + 1.80626i 4.45113i −1.89159 + 2.32849i 4.31183i
20.5 2.23119i 0.884630 1.48910i −2.97822 0.125754 −3.32248 1.97378i 2.84593 1.64310i 2.18260i −1.43486 2.63461i 0.280582i
20.6 2.19154i −1.72917 0.0998148i −2.80283 2.88844 −0.218748 + 3.78954i 2.87116 1.65766i 1.75944i 2.98007 + 0.345194i 6.33013i
20.7 2.18507i −1.45123 0.945478i −2.77451 −4.24066 −2.06593 + 3.17104i 1.53870 0.888369i 1.69237i 1.21214 + 2.74421i 9.26613i
20.8 1.92695i 1.25735 1.19125i −1.71313 −2.87921 −2.29547 2.42285i −3.83327 + 2.21314i 0.552789i 0.161862 2.99563i 5.54808i
20.9 1.50929i −1.20481 + 1.24436i −0.277965 −1.72647 1.87811 + 1.81841i −0.611156 + 0.352851i 2.59905i −0.0968780 2.99844i 2.60575i
20.10 1.44130i −0.773084 + 1.54995i −0.0773408 1.69273 2.23394 + 1.11424i −1.09077 + 0.629759i 2.77113i −1.80468 2.39648i 2.43973i
20.11 1.39140i 1.66784 + 0.467248i 0.0640060 −2.84814 0.650129 2.32063i 2.53428 1.46316i 2.87186i 2.56336 + 1.55859i 3.96290i
20.12 1.23123i 0.393008 1.68687i 0.484071 4.31193 −2.07693 0.483883i −2.81895 + 1.62752i 3.05846i −2.69109 1.32591i 5.30898i
20.13 1.06432i −0.232359 1.71639i 0.867231 −0.493663 −1.82679 + 0.247304i 1.71308 0.989047i 3.05164i −2.89202 + 0.797640i 0.525413i
20.14 0.644462i −1.66095 0.491155i 1.58467 −1.85134 −0.316531 + 1.07042i −4.13935 + 2.38985i 2.31018i 2.51753 + 1.63157i 1.19312i
20.15 0.526296i 1.69800 0.341774i 1.72301 −0.00872515 −0.179874 0.893648i −0.609981 + 0.352173i 1.95941i 2.76638 1.16066i 0.00459201i
20.16 0.367913i 1.19765 + 1.25126i 1.86464 2.77415 0.460353 0.440630i −3.10329 + 1.79168i 1.42185i −0.131284 + 2.99713i 1.02065i
20.17 0.314327i −1.34652 1.08944i 1.90120 1.52320 −0.342441 + 0.423247i 2.18809 1.26330i 1.22625i 0.626226 + 2.93391i 0.478781i
20.18 0.0526567i −1.62710 + 0.593763i 1.99723 −3.05043 0.0312656 + 0.0856775i 2.07723 1.19929i 0.210481i 2.29489 1.93222i 0.160626i
20.19 0.0526567i −1.32776 + 1.11223i 1.99723 3.05043 −0.0585661 0.0699155i 2.07723 1.19929i 0.210481i 0.525907 2.95354i 0.160626i
20.20 0.314327i 0.270226 + 1.71084i 1.90120 −1.52320 −0.537763 + 0.0849394i 2.18809 1.26330i 1.22625i −2.85396 + 0.924629i 0.478781i
See all 72 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 20.36
Significant digits:
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Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
127.d odd 6 1 inner
381.g even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 381.2.g.c 72
3.b odd 2 1 inner 381.2.g.c 72
127.d odd 6 1 inner 381.2.g.c 72
381.g even 6 1 inner 381.2.g.c 72
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
381.2.g.c 72 1.a even 1 1 trivial
381.2.g.c 72 3.b odd 2 1 inner
381.2.g.c 72 127.d odd 6 1 inner
381.2.g.c 72 381.g even 6 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(381, [\chi])\):

\( T_{2}^{36} + 54 T_{2}^{34} + 1323 T_{2}^{32} + 19465 T_{2}^{30} + 191861 T_{2}^{28} + 1338395 T_{2}^{26} + \cdots + 49 \) Copy content Toggle raw display
\( T_{5}^{36} - 103 T_{5}^{34} + 4743 T_{5}^{32} - 129540 T_{5}^{30} + 2346705 T_{5}^{28} - 29859989 T_{5}^{26} + \cdots + 6561 \) Copy content Toggle raw display