Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [930,2,Mod(497,930)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(930, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([2, 1, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("930.497");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 930 = 2 \cdot 3 \cdot 5 \cdot 31 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 930.j (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: | \(7.42608738798\) |
Analytic rank: | \(0\) |
Dimension: | \(40\) |
Relative dimension: | \(20\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
497.1 | −0.707107 | + | 0.707107i | −1.65310 | + | 0.516967i | − | 1.00000i | −0.633448 | − | 2.14447i | 0.803369 | − | 1.53447i | −2.44874 | − | 2.44874i | 0.707107 | + | 0.707107i | 2.46549 | − | 1.70920i | 1.96428 | + | 1.06845i | |
497.2 | −0.707107 | + | 0.707107i | −1.47409 | − | 0.909430i | − | 1.00000i | 2.03224 | − | 0.932730i | 1.68540 | − | 0.399274i | −2.61297 | − | 2.61297i | 0.707107 | + | 0.707107i | 1.34588 | + | 2.68116i | −0.777474 | + | 2.09655i | |
497.3 | −0.707107 | + | 0.707107i | −0.919406 | + | 1.46789i | − | 1.00000i | 2.22068 | + | 0.261841i | −0.387835 | − | 1.68807i | 3.32500 | + | 3.32500i | 0.707107 | + | 0.707107i | −1.30939 | − | 2.69917i | −1.75541 | + | 1.38511i | |
497.4 | −0.707107 | + | 0.707107i | −0.731811 | + | 1.56986i | − | 1.00000i | −1.45516 | + | 1.69779i | −0.592589 | − | 1.62753i | 1.76311 | + | 1.76311i | 0.707107 | + | 0.707107i | −1.92891 | − | 2.29768i | −0.171568 | − | 2.22948i | |
497.5 | −0.707107 | + | 0.707107i | −0.673165 | − | 1.59589i | − | 1.00000i | −1.55932 | − | 1.60266i | 1.60446 | + | 0.652462i | −0.700251 | − | 0.700251i | 0.707107 | + | 0.707107i | −2.09370 | + | 2.14859i | 2.23586 | + | 0.0306496i | |
497.6 | −0.707107 | + | 0.707107i | 0.0444250 | − | 1.73148i | − | 1.00000i | −0.142194 | − | 2.23154i | 1.19293 | + | 1.25576i | 2.34383 | + | 2.34383i | 0.707107 | + | 0.707107i | −2.99605 | − | 0.153842i | 1.67849 | + | 1.47739i | |
497.7 | −0.707107 | + | 0.707107i | 0.765006 | + | 1.55395i | − | 1.00000i | 1.73301 | + | 1.41304i | −1.63975 | − | 0.557869i | 1.07773 | + | 1.07773i | 0.707107 | + | 0.707107i | −1.82953 | + | 2.37756i | −2.22459 | + | 0.226250i | |
497.8 | −0.707107 | + | 0.707107i | 0.853874 | + | 1.50695i | − | 1.00000i | −2.20708 | − | 0.358875i | −1.66935 | − | 0.461795i | −1.72132 | − | 1.72132i | 0.707107 | + | 0.707107i | −1.54180 | + | 2.57349i | 1.81441 | − | 1.30688i | |
497.9 | −0.707107 | + | 0.707107i | 1.05623 | − | 1.37273i | − | 1.00000i | −0.0887404 | + | 2.23431i | 0.223801 | + | 1.71753i | −1.91575 | − | 1.91575i | 0.707107 | + | 0.707107i | −0.768771 | − | 2.89983i | −1.51714 | − | 1.64264i | |
497.10 | −0.707107 | + | 0.707107i | 1.73204 | − | 0.00608872i | − | 1.00000i | −2.02131 | + | 0.956187i | −1.22043 | + | 1.22904i | −1.11064 | − | 1.11064i | 0.707107 | + | 0.707107i | 2.99993 | − | 0.0210918i | 0.753158 | − | 2.10541i | |
497.11 | 0.707107 | − | 0.707107i | −1.56986 | + | 0.731811i | − | 1.00000i | 1.45516 | − | 1.69779i | −0.592589 | + | 1.62753i | 1.76311 | + | 1.76311i | −0.707107 | − | 0.707107i | 1.92891 | − | 2.29768i | −0.171568 | − | 2.22948i | |
497.12 | 0.707107 | − | 0.707107i | −1.55395 | − | 0.765006i | − | 1.00000i | −1.73301 | − | 1.41304i | −1.63975 | + | 0.557869i | 1.07773 | + | 1.07773i | −0.707107 | − | 0.707107i | 1.82953 | + | 2.37756i | −2.22459 | + | 0.226250i | |
497.13 | 0.707107 | − | 0.707107i | −1.50695 | − | 0.853874i | − | 1.00000i | 2.20708 | + | 0.358875i | −1.66935 | + | 0.461795i | −1.72132 | − | 1.72132i | −0.707107 | − | 0.707107i | 1.54180 | + | 2.57349i | 1.81441 | − | 1.30688i | |
497.14 | 0.707107 | − | 0.707107i | −1.46789 | + | 0.919406i | − | 1.00000i | −2.22068 | − | 0.261841i | −0.387835 | + | 1.68807i | 3.32500 | + | 3.32500i | −0.707107 | − | 0.707107i | 1.30939 | − | 2.69917i | −1.75541 | + | 1.38511i | |
497.15 | 0.707107 | − | 0.707107i | −0.516967 | + | 1.65310i | − | 1.00000i | 0.633448 | + | 2.14447i | 0.803369 | + | 1.53447i | −2.44874 | − | 2.44874i | −0.707107 | − | 0.707107i | −2.46549 | − | 1.70920i | 1.96428 | + | 1.06845i | |
497.16 | 0.707107 | − | 0.707107i | 0.00608872 | − | 1.73204i | − | 1.00000i | 2.02131 | − | 0.956187i | −1.22043 | − | 1.22904i | −1.11064 | − | 1.11064i | −0.707107 | − | 0.707107i | −2.99993 | − | 0.0210918i | 0.753158 | − | 2.10541i | |
497.17 | 0.707107 | − | 0.707107i | 0.909430 | + | 1.47409i | − | 1.00000i | −2.03224 | + | 0.932730i | 1.68540 | + | 0.399274i | −2.61297 | − | 2.61297i | −0.707107 | − | 0.707107i | −1.34588 | + | 2.68116i | −0.777474 | + | 2.09655i | |
497.18 | 0.707107 | − | 0.707107i | 1.37273 | − | 1.05623i | − | 1.00000i | 0.0887404 | − | 2.23431i | 0.223801 | − | 1.71753i | −1.91575 | − | 1.91575i | −0.707107 | − | 0.707107i | 0.768771 | − | 2.89983i | −1.51714 | − | 1.64264i | |
497.19 | 0.707107 | − | 0.707107i | 1.59589 | + | 0.673165i | − | 1.00000i | 1.55932 | + | 1.60266i | 1.60446 | − | 0.652462i | −0.700251 | − | 0.700251i | −0.707107 | − | 0.707107i | 2.09370 | + | 2.14859i | 2.23586 | + | 0.0306496i | |
497.20 | 0.707107 | − | 0.707107i | 1.73148 | − | 0.0444250i | − | 1.00000i | 0.142194 | + | 2.23154i | 1.19293 | − | 1.25576i | 2.34383 | + | 2.34383i | −0.707107 | − | 0.707107i | 2.99605 | − | 0.153842i | 1.67849 | + | 1.47739i | |
See all 40 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
5.c | odd | 4 | 1 | inner |
15.e | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 930.2.j.g | ✓ | 40 |
3.b | odd | 2 | 1 | inner | 930.2.j.g | ✓ | 40 |
5.c | odd | 4 | 1 | inner | 930.2.j.g | ✓ | 40 |
15.e | even | 4 | 1 | inner | 930.2.j.g | ✓ | 40 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
930.2.j.g | ✓ | 40 | 1.a | even | 1 | 1 | trivial |
930.2.j.g | ✓ | 40 | 3.b | odd | 2 | 1 | inner |
930.2.j.g | ✓ | 40 | 5.c | odd | 4 | 1 | inner |
930.2.j.g | ✓ | 40 | 15.e | 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 \(S_{2}^{\mathrm{new}}(930, [\chi])\):
\( T_{7}^{20} + 4 T_{7}^{19} + 8 T_{7}^{18} + 24 T_{7}^{17} + 604 T_{7}^{16} + 2664 T_{7}^{15} + \cdots + 60466176 \) |
\( T_{11}^{20} + 184 T_{11}^{18} + 14417 T_{11}^{16} + 628792 T_{11}^{14} + 16758208 T_{11}^{12} + \cdots + 11906737924 \) |
\( T_{17}^{40} + 12210 T_{17}^{36} + 54185201 T_{17}^{32} + 105212553808 T_{17}^{28} + \cdots + 44\!\cdots\!76 \) |