Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [920,2,Mod(413,920)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(920, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 2, 3, 2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("920.413");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 920 = 2^{3} \cdot 5 \cdot 23 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 920.x (of order \(4\), 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: | \(7.34623698596\) |
Analytic rank: | \(0\) |
Dimension: | \(264\) |
Relative dimension: | \(132\) over \(\Q(i)\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{4}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
413.1 | −1.41152 | + | 0.0872300i | 1.39583 | − | 1.39583i | 1.98478 | − | 0.246254i | −2.22438 | − | 0.228324i | −1.84849 | + | 2.09201i | −0.328173 | − | 0.328173i | −2.78008 | + | 0.520725i | − | 0.896700i | 3.15968 | + | 0.128251i | |
413.2 | −1.41152 | + | 0.0872300i | 1.39583 | − | 1.39583i | 1.98478 | − | 0.246254i | 2.22438 | + | 0.228324i | −1.84849 | + | 2.09201i | 0.328173 | + | 0.328173i | −2.78008 | + | 0.520725i | − | 0.896700i | −3.15968 | − | 0.128251i | |
413.3 | −1.40870 | − | 0.124723i | 0.569673 | − | 0.569673i | 1.96889 | + | 0.351396i | −1.11428 | − | 1.93865i | −0.873551 | + | 0.731448i | −2.21503 | − | 2.21503i | −2.72975 | − | 0.740579i | 2.35095i | 1.32789 | + | 2.86997i | ||
413.4 | −1.40870 | − | 0.124723i | 0.569673 | − | 0.569673i | 1.96889 | + | 0.351396i | 1.11428 | + | 1.93865i | −0.873551 | + | 0.731448i | 2.21503 | + | 2.21503i | −2.72975 | − | 0.740579i | 2.35095i | −1.32789 | − | 2.86997i | ||
413.5 | −1.40742 | − | 0.138403i | −1.22169 | + | 1.22169i | 1.96169 | + | 0.389583i | −0.126470 | − | 2.23249i | 1.88853 | − | 1.55036i | −0.715528 | − | 0.715528i | −2.70701 | − | 0.819812i | 0.0149250i | −0.130985 | + | 3.15956i | ||
413.6 | −1.40742 | − | 0.138403i | −1.22169 | + | 1.22169i | 1.96169 | + | 0.389583i | 0.126470 | + | 2.23249i | 1.88853 | − | 1.55036i | 0.715528 | + | 0.715528i | −2.70701 | − | 0.819812i | 0.0149250i | 0.130985 | − | 3.15956i | ||
413.7 | −1.40687 | + | 0.143912i | −0.790180 | + | 0.790180i | 1.95858 | − | 0.404932i | −2.23004 | + | 0.164085i | 0.997965 | − | 1.22540i | 2.29410 | + | 2.29410i | −2.69719 | + | 0.851551i | 1.75123i | 3.11377 | − | 0.551776i | ||
413.8 | −1.40687 | + | 0.143912i | −0.790180 | + | 0.790180i | 1.95858 | − | 0.404932i | 2.23004 | − | 0.164085i | 0.997965 | − | 1.22540i | −2.29410 | − | 2.29410i | −2.69719 | + | 0.851551i | 1.75123i | −3.11377 | + | 0.551776i | ||
413.9 | −1.38153 | − | 0.302280i | 2.33354 | − | 2.33354i | 1.81725 | + | 0.835218i | −0.491368 | + | 2.18141i | −3.92925 | + | 2.51848i | −0.767580 | − | 0.767580i | −2.25812 | − | 1.70320i | − | 7.89085i | 1.33824 | − | 2.86516i | |
413.10 | −1.38153 | − | 0.302280i | 2.33354 | − | 2.33354i | 1.81725 | + | 0.835218i | 0.491368 | − | 2.18141i | −3.92925 | + | 2.51848i | 0.767580 | + | 0.767580i | −2.25812 | − | 1.70320i | − | 7.89085i | −1.33824 | + | 2.86516i | |
413.11 | −1.34566 | + | 0.434979i | −2.00419 | + | 2.00419i | 1.62159 | − | 1.17067i | −1.28359 | + | 1.83095i | 1.82517 | − | 3.56874i | 1.08315 | + | 1.08315i | −1.67289 | + | 2.28067i | − | 5.03357i | 0.930846 | − | 3.02217i | |
413.12 | −1.34566 | + | 0.434979i | −2.00419 | + | 2.00419i | 1.62159 | − | 1.17067i | 1.28359 | − | 1.83095i | 1.82517 | − | 3.56874i | −1.08315 | − | 1.08315i | −1.67289 | + | 2.28067i | − | 5.03357i | −0.930846 | + | 3.02217i | |
413.13 | −1.33616 | − | 0.463335i | −2.22481 | + | 2.22481i | 1.57064 | + | 1.23818i | −2.22212 | + | 0.249389i | 4.00353 | − | 1.94187i | −2.54743 | − | 2.54743i | −1.52494 | − | 2.38214i | − | 6.89955i | 3.08465 | + | 0.696361i | |
413.14 | −1.33616 | − | 0.463335i | −2.22481 | + | 2.22481i | 1.57064 | + | 1.23818i | 2.22212 | − | 0.249389i | 4.00353 | − | 1.94187i | 2.54743 | + | 2.54743i | −1.52494 | − | 2.38214i | − | 6.89955i | −3.08465 | − | 0.696361i | |
413.15 | −1.33328 | + | 0.471562i | −0.296434 | + | 0.296434i | 1.55526 | − | 1.25745i | −0.251163 | − | 2.22192i | 0.255442 | − | 0.535016i | 3.54670 | + | 3.54670i | −1.48063 | + | 2.40993i | 2.82425i | 1.38264 | + | 2.84399i | ||
413.16 | −1.33328 | + | 0.471562i | −0.296434 | + | 0.296434i | 1.55526 | − | 1.25745i | 0.251163 | + | 2.22192i | 0.255442 | − | 0.535016i | −3.54670 | − | 3.54670i | −1.48063 | + | 2.40993i | 2.82425i | −1.38264 | − | 2.84399i | ||
413.17 | −1.30237 | + | 0.551202i | 1.10544 | − | 1.10544i | 1.39235 | − | 1.43574i | −1.04628 | + | 1.97619i | −0.830375 | + | 2.04902i | −0.867616 | − | 0.867616i | −1.02198 | + | 2.63734i | 0.556000i | 0.273363 | − | 3.15044i | ||
413.18 | −1.30237 | + | 0.551202i | 1.10544 | − | 1.10544i | 1.39235 | − | 1.43574i | 1.04628 | − | 1.97619i | −0.830375 | + | 2.04902i | 0.867616 | + | 0.867616i | −1.02198 | + | 2.63734i | 0.556000i | −0.273363 | + | 3.15044i | ||
413.19 | −1.27320 | − | 0.615599i | −1.39301 | + | 1.39301i | 1.24208 | + | 1.56756i | −1.79988 | − | 1.32682i | 2.63112 | − | 0.916046i | 1.14201 | + | 1.14201i | −0.616423 | − | 2.76044i | − | 0.880959i | 1.47482 | + | 2.79731i | |
413.20 | −1.27320 | − | 0.615599i | −1.39301 | + | 1.39301i | 1.24208 | + | 1.56756i | 1.79988 | + | 1.32682i | 2.63112 | − | 0.916046i | −1.14201 | − | 1.14201i | −0.616423 | − | 2.76044i | − | 0.880959i | −1.47482 | − | 2.79731i | |
See next 80 embeddings (of 264 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.c | odd | 4 | 1 | inner |
8.b | even | 2 | 1 | inner |
23.b | odd | 2 | 1 | inner |
40.i | odd | 4 | 1 | inner |
115.e | even | 4 | 1 | inner |
184.e | odd | 2 | 1 | inner |
920.x | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 920.2.x.c | ✓ | 264 |
5.c | odd | 4 | 1 | inner | 920.2.x.c | ✓ | 264 |
8.b | even | 2 | 1 | inner | 920.2.x.c | ✓ | 264 |
23.b | odd | 2 | 1 | inner | 920.2.x.c | ✓ | 264 |
40.i | odd | 4 | 1 | inner | 920.2.x.c | ✓ | 264 |
115.e | even | 4 | 1 | inner | 920.2.x.c | ✓ | 264 |
184.e | odd | 2 | 1 | inner | 920.2.x.c | ✓ | 264 |
920.x | even | 4 | 1 | inner | 920.2.x.c | ✓ | 264 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
920.2.x.c | ✓ | 264 | 1.a | even | 1 | 1 | trivial |
920.2.x.c | ✓ | 264 | 5.c | odd | 4 | 1 | inner |
920.2.x.c | ✓ | 264 | 8.b | even | 2 | 1 | inner |
920.2.x.c | ✓ | 264 | 23.b | odd | 2 | 1 | inner |
920.2.x.c | ✓ | 264 | 40.i | odd | 4 | 1 | inner |
920.2.x.c | ✓ | 264 | 115.e | even | 4 | 1 | inner |
920.2.x.c | ✓ | 264 | 184.e | odd | 2 | 1 | inner |
920.2.x.c | ✓ | 264 | 920.x | even | 4 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(920, [\chi])\):
\( T_{3}^{132} + 960 T_{3}^{128} + 425250 T_{3}^{124} + 115495592 T_{3}^{120} + 21558614287 T_{3}^{116} + \cdots + 56\!\cdots\!44 \) |
\( T_{11}^{66} - 364 T_{11}^{64} + 62516 T_{11}^{62} - 6745432 T_{11}^{60} + 513616327 T_{11}^{58} + \cdots - 10\!\cdots\!00 \) |