Properties

Label 931.2.bk.a
Level $931$
Weight $2$
Character orbit 931.bk
Analytic conductor $7.434$
Analytic rank $0$
Dimension $1104$
CM no
Inner twists $2$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [931,2,Mod(11,931)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(931, base_ring=CyclotomicField(42))
 
chi = DirichletCharacter(H, H._module([40, 28]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("931.11");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 931 = 7^{2} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 931.bk (of order \(21\), degree \(12\), 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: \(7.43407242818\)
Analytic rank: \(0\)
Dimension: \(1104\)
Relative dimension: \(92\) over \(\Q(\zeta_{21})\)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{21}]$

$q$-expansion

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

\(\operatorname{Tr}(f)(q) = \) \( 1104 q - 5 q^{2} - 10 q^{3} - 189 q^{4} - 7 q^{5} - q^{6} - 26 q^{7} - 10 q^{8} + 82 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 1104 q - 5 q^{2} - 10 q^{3} - 189 q^{4} - 7 q^{5} - q^{6} - 26 q^{7} - 10 q^{8} + 82 q^{9} + 25 q^{10} - 20 q^{11} - 26 q^{12} - 13 q^{13} - 9 q^{14} - 2 q^{15} - 185 q^{16} - 8 q^{17} - 11 q^{18} - 9 q^{19} - 19 q^{21} - 9 q^{22} - 4 q^{23} + q^{24} - 183 q^{25} - q^{26} - 10 q^{27} - 20 q^{28} - 7 q^{29} - 13 q^{30} + 59 q^{31} - q^{32} - q^{33} - 13 q^{34} + 52 q^{35} + 108 q^{36} - 39 q^{37} - 40 q^{38} - 15 q^{39} + 77 q^{40} - 27 q^{41} - 187 q^{42} - 5 q^{43} - 51 q^{44} - 142 q^{45} - 14 q^{46} - 91 q^{47} + 3 q^{48} - 46 q^{49} - 70 q^{50} - 20 q^{51} - 4 q^{52} + 7 q^{53} - 51 q^{54} + 19 q^{55} + 7 q^{56} - 111 q^{57} + 17 q^{58} - 21 q^{59} - 3 q^{60} + 8 q^{61} + 26 q^{62} + 40 q^{63} - 162 q^{64} - 19 q^{65} - 71 q^{66} - 34 q^{67} - 65 q^{68} + 6 q^{69} - 49 q^{70} - 29 q^{71} + 167 q^{72} + 14 q^{73} + 28 q^{74} - 143 q^{75} + 189 q^{76} - 8 q^{77} - 10 q^{78} - 12 q^{79} + 96 q^{80} + 65 q^{81} - 30 q^{82} - 3 q^{83} + 165 q^{84} + 124 q^{85} - 78 q^{86} - 81 q^{87} - 58 q^{88} - 27 q^{89} + 15 q^{90} + 97 q^{91} - 249 q^{92} - 29 q^{93} + 100 q^{94} - 23 q^{95} - 508 q^{96} + 11 q^{97} + 100 q^{98} + 23 q^{99}+O(q^{100}) \) 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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
11.1 −0.615875 2.69832i −0.332007 + 0.845940i −5.09971 + 2.45589i −1.15532 1.44872i 2.48709 + 0.374869i 2.46158 + 0.969855i 6.31629 + 7.92037i 1.59377 + 1.47880i −3.19759 + 4.00965i
11.2 −0.609805 2.67173i 0.644462 1.64206i −4.96434 + 2.39070i 1.94340 + 2.43695i −4.78014 0.720491i −2.58384 + 0.569009i 5.99730 + 7.52038i −0.0818849 0.0759781i 5.32577 6.67831i
11.3 −0.587425 2.57368i −1.13685 + 2.89665i −4.47682 + 2.15592i 0.919532 + 1.15306i 8.12286 + 1.22432i −2.11037 1.59573i 4.88659 + 6.12759i −4.89898 4.54559i 2.42744 3.04391i
11.4 −0.587289 2.57308i 0.140450 0.357861i −4.47390 + 2.15452i −0.381209 0.478022i −1.00329 0.151222i 0.277776 2.63113i 4.88012 + 6.11947i 2.09082 + 1.94000i −1.00611 + 1.26162i
11.5 −0.579392 2.53848i −0.568641 + 1.44887i −4.30626 + 2.07378i 2.63489 + 3.30404i 4.00741 + 0.604020i 2.30643 1.29629i 4.51243 + 5.65841i 0.423271 + 0.392738i 6.86062 8.60294i
11.6 −0.552041 2.41865i −1.16445 + 2.96696i −3.74318 + 1.80262i −0.393992 0.494050i 7.81887 + 1.17850i 1.55186 + 2.14283i 3.33272 + 4.17910i −5.24778 4.86923i −0.977434 + 1.22566i
11.7 −0.549985 2.40964i 0.609760 1.55364i −3.70195 + 1.78277i −1.40795 1.76552i −4.07908 0.614823i −2.06656 + 1.65206i 3.24980 + 4.07512i 0.157156 + 0.145820i −3.47991 + 4.36367i
11.8 −0.547285 2.39781i 1.04580 2.66465i −3.64804 + 1.75681i 0.578694 + 0.725660i −6.96169 1.04931i 1.14529 2.38502i 3.14209 + 3.94006i −3.80753 3.53287i 1.42329 1.78474i
11.9 −0.543789 2.38249i −0.265972 + 0.677685i −3.57863 + 1.72338i −0.524866 0.658161i 1.75921 + 0.265159i −0.928425 2.47750i 3.00463 + 3.76769i 1.81064 + 1.68003i −1.28265 + 1.60839i
11.10 −0.540332 2.36735i −0.785355 + 2.00105i −3.51044 + 1.69054i −2.32503 2.91549i 5.16153 + 0.777976i −2.64118 + 0.155496i 2.87094 + 3.60004i −1.18827 1.10255i −5.64570 + 7.07948i
11.11 −0.538912 2.36113i 0.605126 1.54184i −3.48257 + 1.67712i 1.31442 + 1.64823i −3.96659 0.597867i 1.46589 + 2.20253i 2.81669 + 3.53202i 0.188073 + 0.174506i 3.18334 3.99178i
11.12 −0.510055 2.23470i 0.0578878 0.147496i −2.93177 + 1.41187i −0.706743 0.886228i −0.359134 0.0541307i −0.0746171 + 2.64470i 1.79218 + 2.24732i 2.18075 + 2.02344i −1.61997 + 2.03138i
11.13 −0.482006 2.11180i −0.442854 + 1.12837i −2.42545 + 1.16804i 1.98377 + 2.48757i 2.59636 + 0.391339i −0.196080 + 2.63848i 0.934643 + 1.17201i 1.12205 + 1.04111i 4.29708 5.38836i
11.14 −0.457382 2.00392i 1.05033 2.67619i −2.00456 + 0.965345i −1.00741 1.26325i −5.84326 0.880730i −2.24653 1.39753i 0.288212 + 0.361406i −3.85964 3.58122i −2.07068 + 2.59655i
11.15 −0.450682 1.97457i −0.818630 + 2.08584i −1.89387 + 0.912039i −2.38170 2.98656i 4.48757 + 0.676392i 2.02636 1.70113i 0.128848 + 0.161571i −1.48140 1.37454i −4.82377 + 6.04881i
11.16 −0.432719 1.89587i 0.00417702 0.0106429i −1.60513 + 0.772990i 1.18614 + 1.48737i −0.0219850 0.00331370i −1.63071 2.08346i −0.264848 0.332109i 2.19906 + 2.04043i 2.30659 2.89237i
11.17 −0.426281 1.86766i 0.997568 2.54176i −1.50450 + 0.724531i −1.83257 2.29797i −5.17240 0.779613i 2.38424 + 1.14690i −0.394308 0.494446i −3.26626 3.03065i −3.51064 + 4.40220i
11.18 −0.417108 1.82747i 0.442810 1.12826i −1.36373 + 0.656737i −0.116514 0.146105i −2.24656 0.338615i 2.61176 + 0.422728i −0.568433 0.712793i 1.12226 + 1.04131i −0.218402 + 0.273868i
11.19 −0.412379 1.80675i −0.519618 + 1.32396i −1.29236 + 0.622368i 0.0580236 + 0.0727593i 2.60636 + 0.392845i 2.64553 + 0.0342878i −0.653515 0.819483i 0.716275 + 0.664606i 0.107530 0.134839i
11.20 −0.411670 1.80364i 1.07059 2.72781i −1.28172 + 0.617245i 2.19657 + 2.75441i −5.36072 0.807999i 1.06921 + 2.42008i −0.666011 0.835151i −4.09562 3.80018i 4.06371 5.09573i
See next 80 embeddings (of 1104 total)
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 11.92
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
931.bk even 21 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 931.2.bk.a 1104
19.c even 3 1 931.2.bl.a yes 1104
49.g even 21 1 931.2.bl.a yes 1104
931.bk even 21 1 inner 931.2.bk.a 1104
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
931.2.bk.a 1104 1.a even 1 1 trivial
931.2.bk.a 1104 931.bk even 21 1 inner
931.2.bl.a yes 1104 19.c even 3 1
931.2.bl.a yes 1104 49.g even 21 1

Hecke kernels

This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(931, [\chi])\).