Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [495,2,Mod(28,495)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(495, base_ring=CyclotomicField(20))
chi = DirichletCharacter(H, H._module([0, 15, 18]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("495.28");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 495 = 3^{2} \cdot 5 \cdot 11 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 495.bj (of order \(20\), degree \(8\), 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: | \(3.95259490005\) |
Analytic rank: | \(0\) |
Dimension: | \(96\) |
Relative dimension: | \(12\) over \(\Q(\zeta_{20})\) |
Twist minimal: | no (minimal twist has level 165) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{20}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
28.1 | −1.18575 | + | 2.32716i | 0 | −2.83412 | − | 3.90083i | −1.30674 | − | 1.81450i | 0 | −1.46263 | − | 0.231658i | 7.27904 | − | 1.15289i | 0 | 5.77211 | − | 0.889461i | ||||||
28.2 | −0.991111 | + | 1.94517i | 0 | −1.62580 | − | 2.23772i | −2.23403 | + | 0.0954087i | 0 | 0.0532647 | + | 0.00843630i | 1.65161 | − | 0.261589i | 0 | 2.02859 | − | 4.44012i | ||||||
28.3 | −0.895950 | + | 1.75840i | 0 | −1.11368 | − | 1.53285i | 1.84639 | + | 1.26129i | 0 | 1.95292 | + | 0.309312i | −0.205250 | + | 0.0325083i | 0 | −3.87213 | + | 2.11664i | ||||||
28.4 | −0.590928 | + | 1.15976i | 0 | 0.179719 | + | 0.247362i | 1.66621 | − | 1.49122i | 0 | 2.49573 | + | 0.395285i | −2.96429 | + | 0.469498i | 0 | 0.744848 | + | 2.81361i | ||||||
28.5 | −0.331042 | + | 0.649706i | 0 | 0.863041 | + | 1.18787i | −1.12140 | + | 1.93454i | 0 | −1.77896 | − | 0.281760i | −2.49788 | + | 0.395626i | 0 | −0.885655 | − | 1.36900i | ||||||
28.6 | −0.170021 | + | 0.333685i | 0 | 1.09313 | + | 1.50457i | −0.0891995 | + | 2.23429i | 0 | 0.999786 | + | 0.158351i | −1.42769 | + | 0.226124i | 0 | −0.730383 | − | 0.409641i | ||||||
28.7 | 0.0863333 | − | 0.169439i | 0 | 1.15431 | + | 1.58878i | −1.73786 | − | 1.40707i | 0 | −4.37063 | − | 0.692240i | 0.744505 | − | 0.117918i | 0 | −0.388447 | + | 0.172984i | ||||||
28.8 | 0.298067 | − | 0.584989i | 0 | 0.922202 | + | 1.26930i | 1.28833 | − | 1.82762i | 0 | 2.25936 | + | 0.357848i | 2.31434 | − | 0.366555i | 0 | −0.685133 | − | 1.29841i | ||||||
28.9 | 0.757027 | − | 1.48575i | 0 | −0.458789 | − | 0.631469i | 2.23602 | + | 0.0151940i | 0 | −2.35072 | − | 0.372318i | 2.00841 | − | 0.318101i | 0 | 1.71530 | − | 3.31066i | ||||||
28.10 | 0.908700 | − | 1.78343i | 0 | −1.17930 | − | 1.62316i | −0.626380 | − | 2.14654i | 0 | 4.18741 | + | 0.663220i | −0.0125370 | + | 0.00198567i | 0 | −4.39739 | − | 0.833463i | ||||||
28.11 | 0.986271 | − | 1.93567i | 0 | −1.59850 | − | 2.20015i | 0.401727 | + | 2.19969i | 0 | 3.95619 | + | 0.626599i | −1.54390 | + | 0.244529i | 0 | 4.65407 | + | 1.39188i | ||||||
28.12 | 1.12840 | − | 2.21461i | 0 | −2.45566 | − | 3.37992i | 0.676946 | − | 2.13114i | 0 | −3.91204 | − | 0.619606i | −5.34635 | + | 0.846779i | 0 | −3.95578 | − | 3.90395i | ||||||
73.1 | −0.408966 | − | 2.58211i | 0 | −4.59791 | + | 1.49395i | −2.00042 | − | 0.999158i | 0 | −0.975676 | + | 1.91487i | 3.36420 | + | 6.60261i | 0 | −1.76183 | + | 5.57392i | ||||||
73.2 | −0.374072 | − | 2.36180i | 0 | −3.53603 | + | 1.14893i | 1.34914 | − | 1.78321i | 0 | −0.373384 | + | 0.732807i | 1.86506 | + | 3.66039i | 0 | −4.71624 | − | 2.51934i | ||||||
73.3 | −0.229620 | − | 1.44976i | 0 | −0.146976 | + | 0.0477555i | −0.283867 | + | 2.21798i | 0 | −1.53330 | + | 3.00927i | −1.22978 | − | 2.41359i | 0 | 3.28072 | − | 0.0977516i | ||||||
73.4 | −0.201671 | − | 1.27330i | 0 | 0.321488 | − | 0.104458i | 2.23487 | − | 0.0732929i | 0 | −2.05499 | + | 4.03315i | −1.36839 | − | 2.68561i | 0 | −0.544032 | − | 2.83088i | ||||||
73.5 | −0.178502 | − | 1.12702i | 0 | 0.663811 | − | 0.215685i | −1.98355 | + | 1.03225i | 0 | 0.694338 | − | 1.36271i | −1.39764 | − | 2.74302i | 0 | 1.51742 | + | 2.05123i | ||||||
73.6 | −0.0522232 | − | 0.329725i | 0 | 1.79612 | − | 0.583595i | 2.09365 | + | 0.785250i | 0 | 1.33085 | − | 2.61195i | −0.589341 | − | 1.15665i | 0 | 0.149579 | − | 0.731337i | ||||||
73.7 | 0.0220781 | + | 0.139396i | 0 | 1.88317 | − | 0.611879i | −0.421082 | − | 2.19606i | 0 | −0.796462 | + | 1.56314i | 0.255016 | + | 0.500497i | 0 | 0.296825 | − | 0.107182i | ||||||
73.8 | 0.123435 | + | 0.779339i | 0 | 1.30998 | − | 0.425638i | 1.47874 | + | 1.67730i | 0 | 0.409798 | − | 0.804274i | 1.20986 | + | 2.37448i | 0 | −1.12466 | + | 1.35948i | ||||||
See all 96 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.c | odd | 4 | 1 | inner |
11.d | odd | 10 | 1 | inner |
55.l | even | 20 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 495.2.bj.c | 96 | |
3.b | odd | 2 | 1 | 165.2.w.a | ✓ | 96 | |
5.c | odd | 4 | 1 | inner | 495.2.bj.c | 96 | |
11.d | odd | 10 | 1 | inner | 495.2.bj.c | 96 | |
15.d | odd | 2 | 1 | 825.2.cw.b | 96 | ||
15.e | even | 4 | 1 | 165.2.w.a | ✓ | 96 | |
15.e | even | 4 | 1 | 825.2.cw.b | 96 | ||
33.f | even | 10 | 1 | 165.2.w.a | ✓ | 96 | |
55.l | even | 20 | 1 | inner | 495.2.bj.c | 96 | |
165.r | even | 10 | 1 | 825.2.cw.b | 96 | ||
165.u | odd | 20 | 1 | 165.2.w.a | ✓ | 96 | |
165.u | odd | 20 | 1 | 825.2.cw.b | 96 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
165.2.w.a | ✓ | 96 | 3.b | odd | 2 | 1 | |
165.2.w.a | ✓ | 96 | 15.e | even | 4 | 1 | |
165.2.w.a | ✓ | 96 | 33.f | even | 10 | 1 | |
165.2.w.a | ✓ | 96 | 165.u | odd | 20 | 1 | |
495.2.bj.c | 96 | 1.a | even | 1 | 1 | trivial | |
495.2.bj.c | 96 | 5.c | odd | 4 | 1 | inner | |
495.2.bj.c | 96 | 11.d | odd | 10 | 1 | inner | |
495.2.bj.c | 96 | 55.l | even | 20 | 1 | inner | |
825.2.cw.b | 96 | 15.d | odd | 2 | 1 | ||
825.2.cw.b | 96 | 15.e | even | 4 | 1 | ||
825.2.cw.b | 96 | 165.r | even | 10 | 1 | ||
825.2.cw.b | 96 | 165.u | odd | 20 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{96} - 86 T_{2}^{92} - 180 T_{2}^{89} + 4943 T_{2}^{88} - 20 T_{2}^{87} + 15800 T_{2}^{85} + \cdots + 43046721 \) acting on \(S_{2}^{\mathrm{new}}(495, [\chi])\).