Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [390,2,Mod(77,390)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(390, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([2, 1, 2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("390.77");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 390 = 2 \cdot 3 \cdot 5 \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 390.s (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: | \(3.11416567883\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(12\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
77.1 | −0.707107 | − | 0.707107i | −1.53318 | − | 0.805823i | 1.00000i | −1.53706 | + | 1.62402i | 0.514321 | + | 1.65393i | 0.677204 | − | 0.677204i | 0.707107 | − | 0.707107i | 1.70130 | + | 2.47095i | 2.23522 | − | 0.0614950i | ||
77.2 | −0.707107 | − | 0.707107i | −1.29768 | − | 1.14719i | 1.00000i | 2.23605 | − | 0.00995019i | 0.106413 | + | 1.72878i | −1.03162 | + | 1.03162i | 0.707107 | − | 0.707107i | 0.367928 | + | 2.97735i | −1.58816 | − | 1.57409i | ||
77.3 | −0.707107 | − | 0.707107i | −0.854151 | + | 1.50679i | 1.00000i | 1.11448 | + | 1.93854i | 1.66944 | − | 0.461487i | 3.10713 | − | 3.10713i | 0.707107 | − | 0.707107i | −1.54085 | − | 2.57406i | 0.582700 | − | 2.15881i | ||
77.4 | −0.707107 | − | 0.707107i | −0.128848 | + | 1.72725i | 1.00000i | −1.56114 | − | 1.60089i | 1.31246 | − | 1.13024i | 0.236462 | − | 0.236462i | 0.707107 | − | 0.707107i | −2.96680 | − | 0.445105i | −0.0281051 | + | 2.23589i | ||
77.5 | −0.707107 | − | 0.707107i | 0.174068 | − | 1.72328i | 1.00000i | 1.17831 | − | 1.90042i | −1.34163 | + | 1.09546i | −2.28877 | + | 2.28877i | 0.707107 | − | 0.707107i | −2.93940 | − | 0.599938i | −2.17699 | + | 0.510611i | ||
77.6 | −0.707107 | − | 0.707107i | 1.63979 | − | 0.557754i | 1.00000i | −2.13774 | + | 0.655799i | −1.55390 | − | 0.765115i | 2.12802 | − | 2.12802i | 0.707107 | − | 0.707107i | 2.37782 | − | 1.82920i | 1.97533 | + | 1.04789i | ||
77.7 | 0.707107 | + | 0.707107i | −1.53318 | − | 0.805823i | 1.00000i | 1.53706 | − | 1.62402i | −0.514321 | − | 1.65393i | −0.677204 | + | 0.677204i | −0.707107 | + | 0.707107i | 1.70130 | + | 2.47095i | 2.23522 | − | 0.0614950i | ||
77.8 | 0.707107 | + | 0.707107i | −1.29768 | − | 1.14719i | 1.00000i | −2.23605 | + | 0.00995019i | −0.106413 | − | 1.72878i | 1.03162 | − | 1.03162i | −0.707107 | + | 0.707107i | 0.367928 | + | 2.97735i | −1.58816 | − | 1.57409i | ||
77.9 | 0.707107 | + | 0.707107i | −0.854151 | + | 1.50679i | 1.00000i | −1.11448 | − | 1.93854i | −1.66944 | + | 0.461487i | −3.10713 | + | 3.10713i | −0.707107 | + | 0.707107i | −1.54085 | − | 2.57406i | 0.582700 | − | 2.15881i | ||
77.10 | 0.707107 | + | 0.707107i | −0.128848 | + | 1.72725i | 1.00000i | 1.56114 | + | 1.60089i | −1.31246 | + | 1.13024i | −0.236462 | + | 0.236462i | −0.707107 | + | 0.707107i | −2.96680 | − | 0.445105i | −0.0281051 | + | 2.23589i | ||
77.11 | 0.707107 | + | 0.707107i | 0.174068 | − | 1.72328i | 1.00000i | −1.17831 | + | 1.90042i | 1.34163 | − | 1.09546i | 2.28877 | − | 2.28877i | −0.707107 | + | 0.707107i | −2.93940 | − | 0.599938i | −2.17699 | + | 0.510611i | ||
77.12 | 0.707107 | + | 0.707107i | 1.63979 | − | 0.557754i | 1.00000i | 2.13774 | − | 0.655799i | 1.55390 | + | 0.765115i | −2.12802 | + | 2.12802i | −0.707107 | + | 0.707107i | 2.37782 | − | 1.82920i | 1.97533 | + | 1.04789i | ||
233.1 | −0.707107 | + | 0.707107i | −1.53318 | + | 0.805823i | − | 1.00000i | −1.53706 | − | 1.62402i | 0.514321 | − | 1.65393i | 0.677204 | + | 0.677204i | 0.707107 | + | 0.707107i | 1.70130 | − | 2.47095i | 2.23522 | + | 0.0614950i | |
233.2 | −0.707107 | + | 0.707107i | −1.29768 | + | 1.14719i | − | 1.00000i | 2.23605 | + | 0.00995019i | 0.106413 | − | 1.72878i | −1.03162 | − | 1.03162i | 0.707107 | + | 0.707107i | 0.367928 | − | 2.97735i | −1.58816 | + | 1.57409i | |
233.3 | −0.707107 | + | 0.707107i | −0.854151 | − | 1.50679i | − | 1.00000i | 1.11448 | − | 1.93854i | 1.66944 | + | 0.461487i | 3.10713 | + | 3.10713i | 0.707107 | + | 0.707107i | −1.54085 | + | 2.57406i | 0.582700 | + | 2.15881i | |
233.4 | −0.707107 | + | 0.707107i | −0.128848 | − | 1.72725i | − | 1.00000i | −1.56114 | + | 1.60089i | 1.31246 | + | 1.13024i | 0.236462 | + | 0.236462i | 0.707107 | + | 0.707107i | −2.96680 | + | 0.445105i | −0.0281051 | − | 2.23589i | |
233.5 | −0.707107 | + | 0.707107i | 0.174068 | + | 1.72328i | − | 1.00000i | 1.17831 | + | 1.90042i | −1.34163 | − | 1.09546i | −2.28877 | − | 2.28877i | 0.707107 | + | 0.707107i | −2.93940 | + | 0.599938i | −2.17699 | − | 0.510611i | |
233.6 | −0.707107 | + | 0.707107i | 1.63979 | + | 0.557754i | − | 1.00000i | −2.13774 | − | 0.655799i | −1.55390 | + | 0.765115i | 2.12802 | + | 2.12802i | 0.707107 | + | 0.707107i | 2.37782 | + | 1.82920i | 1.97533 | − | 1.04789i | |
233.7 | 0.707107 | − | 0.707107i | −1.53318 | + | 0.805823i | − | 1.00000i | 1.53706 | + | 1.62402i | −0.514321 | + | 1.65393i | −0.677204 | − | 0.677204i | −0.707107 | − | 0.707107i | 1.70130 | − | 2.47095i | 2.23522 | + | 0.0614950i | |
233.8 | 0.707107 | − | 0.707107i | −1.29768 | + | 1.14719i | − | 1.00000i | −2.23605 | − | 0.00995019i | −0.106413 | + | 1.72878i | 1.03162 | + | 1.03162i | −0.707107 | − | 0.707107i | 0.367928 | − | 2.97735i | −1.58816 | + | 1.57409i | |
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
13.b | even | 2 | 1 | inner |
15.e | even | 4 | 1 | inner |
195.s | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 390.2.s.b | ✓ | 24 |
3.b | odd | 2 | 1 | 390.2.s.c | yes | 24 | |
5.c | odd | 4 | 1 | 390.2.s.c | yes | 24 | |
13.b | even | 2 | 1 | inner | 390.2.s.b | ✓ | 24 |
15.e | even | 4 | 1 | inner | 390.2.s.b | ✓ | 24 |
39.d | odd | 2 | 1 | 390.2.s.c | yes | 24 | |
65.h | odd | 4 | 1 | 390.2.s.c | yes | 24 | |
195.s | even | 4 | 1 | inner | 390.2.s.b | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
390.2.s.b | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
390.2.s.b | ✓ | 24 | 13.b | even | 2 | 1 | inner |
390.2.s.b | ✓ | 24 | 15.e | even | 4 | 1 | inner |
390.2.s.b | ✓ | 24 | 195.s | even | 4 | 1 | inner |
390.2.s.c | yes | 24 | 3.b | odd | 2 | 1 | |
390.2.s.c | yes | 24 | 5.c | odd | 4 | 1 | |
390.2.s.c | yes | 24 | 39.d | odd | 2 | 1 | |
390.2.s.c | yes | 24 | 65.h | odd | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(390, [\chi])\):
\( T_{7}^{24} + 570T_{7}^{20} + 83553T_{7}^{16} + 3792536T_{7}^{12} + 18386480T_{7}^{8} + 13023616T_{7}^{4} + 160000 \) |
\( T_{17}^{12} - 26 T_{17}^{11} + 338 T_{17}^{10} - 2514 T_{17}^{9} + 11301 T_{17}^{8} - 26460 T_{17}^{7} + \cdots + 26419600 \) |