Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [637,2,Mod(19,637)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(637, base_ring=CyclotomicField(12))
chi = DirichletCharacter(H, H._module([10, 5]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("637.19");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 637 = 7^{2} \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 637.x (of order \(12\), degree \(4\), not 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: | \(5.08647060876\) |
Analytic rank: | \(0\) |
Dimension: | \(28\) |
Relative dimension: | \(7\) over \(\Q(\zeta_{12})\) |
Twist minimal: | no (minimal twist has level 91) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{12}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
19.1 | −2.38212 | − | 0.638288i | − | 0.168862i | 3.53505 | + | 2.04096i | 2.38343 | − | 0.638637i | −0.107782 | + | 0.402250i | 0 | −3.63054 | − | 3.63054i | 2.97149 | −6.08525 | |||||||
19.2 | −1.56673 | − | 0.419805i | − | 0.513926i | 0.546366 | + | 0.315445i | −1.47457 | + | 0.395109i | −0.215749 | + | 0.805186i | 0 | 1.57027 | + | 1.57027i | 2.73588 | 2.47612 | |||||||
19.3 | −0.670702 | − | 0.179714i | − | 3.13022i | −1.31451 | − | 0.758931i | 0.0359277 | − | 0.00962681i | −0.562545 | + | 2.09944i | 0 | 1.72723 | + | 1.72723i | −6.79826 | −0.0258269 | |||||||
19.4 | 0.263976 | + | 0.0707322i | 2.50625i | −1.66737 | − | 0.962657i | 1.43012 | − | 0.383199i | −0.177273 | + | 0.661591i | 0 | −0.758543 | − | 0.758543i | −3.28130 | 0.404621 | ||||||||
19.5 | 0.369709 | + | 0.0990633i | 0.914861i | −1.60518 | − | 0.926751i | −3.58134 | + | 0.959617i | −0.0906291 | + | 0.338232i | 0 | −1.04293 | − | 1.04293i | 2.16303 | −1.41912 | ||||||||
19.6 | 1.34471 | + | 0.360315i | − | 1.44853i | −0.0536242 | − | 0.0309600i | 0.643078 | − | 0.172312i | 0.521927 | − | 1.94786i | 0 | −2.02975 | − | 2.02975i | 0.901760 | 0.926843 | |||||||
19.7 | 2.14116 | + | 0.573722i | 1.10837i | 2.52336 | + | 1.45686i | 2.92938 | − | 0.784926i | −0.635898 | + | 2.37321i | 0 | 1.43221 | + | 1.43221i | 1.77151 | 6.72261 | ||||||||
80.1 | −0.629770 | − | 2.35033i | 1.97095i | −3.39540 | + | 1.96034i | −0.0608458 | + | 0.227080i | 4.63238 | − | 1.24124i | 0 | 3.30464 | + | 3.30464i | −0.884626 | 0.572032 | ||||||||
80.2 | −0.521585 | − | 1.94658i | − | 1.44369i | −1.78508 | + | 1.03062i | −0.849184 | + | 3.16920i | −2.81025 | + | 0.753004i | 0 | 0.0872533 | + | 0.0872533i | 0.915773 | 6.61202 | |||||||
80.3 | −0.320827 | − | 1.19734i | − | 2.22531i | 0.401352 | − | 0.231720i | 0.674321 | − | 2.51660i | −2.66446 | + | 0.713939i | 0 | −2.15924 | − | 2.15924i | −1.95199 | −3.22957 | |||||||
80.4 | −0.127046 | − | 0.474142i | 2.44579i | 1.52338 | − | 0.879524i | 0.931242 | − | 3.47544i | 1.15965 | − | 0.310728i | 0 | −1.30475 | − | 1.30475i | −2.98191 | −1.76616 | ||||||||
80.5 | 0.0745816 | + | 0.278342i | − | 1.06594i | 1.66014 | − | 0.958482i | −0.133809 | + | 0.499383i | 0.296695 | − | 0.0794993i | 0 | 0.798123 | + | 0.798123i | 1.86378 | −0.148979 | |||||||
80.6 | 0.470172 | + | 1.75471i | 3.06997i | −1.12588 | + | 0.650030i | −0.288156 | + | 1.07541i | −5.38690 | + | 1.44342i | 0 | 0.899098 | + | 0.899098i | −6.42473 | −2.02252 | ||||||||
80.7 | 0.554474 | + | 2.06932i | − | 0.0197323i | −2.24261 | + | 1.29477i | 0.360406 | − | 1.34505i | 0.0408324 | − | 0.0109410i | 0 | −0.893066 | − | 0.893066i | 2.99961 | 2.98319 | |||||||
215.1 | −0.629770 | + | 2.35033i | − | 1.97095i | −3.39540 | − | 1.96034i | −0.0608458 | − | 0.227080i | 4.63238 | + | 1.24124i | 0 | 3.30464 | − | 3.30464i | −0.884626 | 0.572032 | |||||||
215.2 | −0.521585 | + | 1.94658i | 1.44369i | −1.78508 | − | 1.03062i | −0.849184 | − | 3.16920i | −2.81025 | − | 0.753004i | 0 | 0.0872533 | − | 0.0872533i | 0.915773 | 6.61202 | ||||||||
215.3 | −0.320827 | + | 1.19734i | 2.22531i | 0.401352 | + | 0.231720i | 0.674321 | + | 2.51660i | −2.66446 | − | 0.713939i | 0 | −2.15924 | + | 2.15924i | −1.95199 | −3.22957 | ||||||||
215.4 | −0.127046 | + | 0.474142i | − | 2.44579i | 1.52338 | + | 0.879524i | 0.931242 | + | 3.47544i | 1.15965 | + | 0.310728i | 0 | −1.30475 | + | 1.30475i | −2.98191 | −1.76616 | |||||||
215.5 | 0.0745816 | − | 0.278342i | 1.06594i | 1.66014 | + | 0.958482i | −0.133809 | − | 0.499383i | 0.296695 | + | 0.0794993i | 0 | 0.798123 | − | 0.798123i | 1.86378 | −0.148979 | ||||||||
215.6 | 0.470172 | − | 1.75471i | − | 3.06997i | −1.12588 | − | 0.650030i | −0.288156 | − | 1.07541i | −5.38690 | − | 1.44342i | 0 | 0.899098 | − | 0.899098i | −6.42473 | −2.02252 | |||||||
See all 28 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
91.w | even | 12 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 637.2.x.a | 28 | |
7.b | odd | 2 | 1 | 91.2.w.a | ✓ | 28 | |
7.c | even | 3 | 1 | 91.2.ba.a | yes | 28 | |
7.c | even | 3 | 1 | 637.2.bd.b | 28 | ||
7.d | odd | 6 | 1 | 637.2.bb.a | 28 | ||
7.d | odd | 6 | 1 | 637.2.bd.a | 28 | ||
13.f | odd | 12 | 1 | 637.2.bb.a | 28 | ||
21.c | even | 2 | 1 | 819.2.gh.b | 28 | ||
21.h | odd | 6 | 1 | 819.2.et.b | 28 | ||
91.w | even | 12 | 1 | inner | 637.2.x.a | 28 | |
91.x | odd | 12 | 1 | 637.2.bd.a | 28 | ||
91.ba | even | 12 | 1 | 637.2.bd.b | 28 | ||
91.bc | even | 12 | 1 | 91.2.ba.a | yes | 28 | |
91.bd | odd | 12 | 1 | 91.2.w.a | ✓ | 28 | |
273.bw | even | 12 | 1 | 819.2.gh.b | 28 | ||
273.ca | odd | 12 | 1 | 819.2.et.b | 28 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
91.2.w.a | ✓ | 28 | 7.b | odd | 2 | 1 | |
91.2.w.a | ✓ | 28 | 91.bd | odd | 12 | 1 | |
91.2.ba.a | yes | 28 | 7.c | even | 3 | 1 | |
91.2.ba.a | yes | 28 | 91.bc | even | 12 | 1 | |
637.2.x.a | 28 | 1.a | even | 1 | 1 | trivial | |
637.2.x.a | 28 | 91.w | even | 12 | 1 | inner | |
637.2.bb.a | 28 | 7.d | odd | 6 | 1 | ||
637.2.bb.a | 28 | 13.f | odd | 12 | 1 | ||
637.2.bd.a | 28 | 7.d | odd | 6 | 1 | ||
637.2.bd.a | 28 | 91.x | odd | 12 | 1 | ||
637.2.bd.b | 28 | 7.c | even | 3 | 1 | ||
637.2.bd.b | 28 | 91.ba | even | 12 | 1 | ||
819.2.et.b | 28 | 21.h | odd | 6 | 1 | ||
819.2.et.b | 28 | 273.ca | odd | 12 | 1 | ||
819.2.gh.b | 28 | 21.c | even | 2 | 1 | ||
819.2.gh.b | 28 | 273.bw | even | 12 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{28} + 2 T_{2}^{27} + 5 T_{2}^{26} + 6 T_{2}^{25} - 31 T_{2}^{24} - 46 T_{2}^{23} - 138 T_{2}^{22} + \cdots + 9 \) acting on \(S_{2}^{\mathrm{new}}(637, [\chi])\).