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.
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) |
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 \(S_{2}^{\mathrm{new}}(931, [\chi])\).