Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [520,2,Mod(261,520)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(520, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 1, 0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("520.261");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 520 = 2^{3} \cdot 5 \cdot 13 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 520.g (of order \(2\), degree \(1\), 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: | \(4.15222090511\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{2}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
261.1 | −1.34108 | − | 0.448904i | 0.601115i | 1.59697 | + | 1.20403i | 1.00000i | 0.269843 | − | 0.806141i | −3.20726 | −1.60117 | − | 2.33158i | 2.63866 | 0.448904 | − | 1.34108i | ||||||||
261.2 | −1.34108 | + | 0.448904i | − | 0.601115i | 1.59697 | − | 1.20403i | − | 1.00000i | 0.269843 | + | 0.806141i | −3.20726 | −1.60117 | + | 2.33158i | 2.63866 | 0.448904 | + | 1.34108i | ||||||
261.3 | −1.25169 | − | 0.658225i | − | 2.91145i | 1.13348 | + | 1.64779i | − | 1.00000i | −1.91639 | + | 3.64425i | −1.95534 | −0.334150 | − | 2.80862i | −5.47656 | −0.658225 | + | 1.25169i | ||||||
261.4 | −1.25169 | + | 0.658225i | 2.91145i | 1.13348 | − | 1.64779i | 1.00000i | −1.91639 | − | 3.64425i | −1.95534 | −0.334150 | + | 2.80862i | −5.47656 | −0.658225 | − | 1.25169i | ||||||||
261.5 | −1.02892 | − | 0.970216i | 1.68090i | 0.117362 | + | 1.99655i | 1.00000i | 1.63084 | − | 1.72952i | 3.58543 | 1.81633 | − | 2.16817i | 0.174562 | 0.970216 | − | 1.02892i | ||||||||
261.6 | −1.02892 | + | 0.970216i | − | 1.68090i | 0.117362 | − | 1.99655i | − | 1.00000i | 1.63084 | + | 1.72952i | 3.58543 | 1.81633 | + | 2.16817i | 0.174562 | 0.970216 | + | 1.02892i | ||||||
261.7 | −0.835094 | − | 1.14132i | 0.601279i | −0.605237 | + | 1.90622i | − | 1.00000i | 0.686253 | − | 0.502124i | −4.98089 | 2.68105 | − | 0.901105i | 2.63846 | −1.14132 | + | 0.835094i | |||||||
261.8 | −0.835094 | + | 1.14132i | − | 0.601279i | −0.605237 | − | 1.90622i | 1.00000i | 0.686253 | + | 0.502124i | −4.98089 | 2.68105 | + | 0.901105i | 2.63846 | −1.14132 | − | 0.835094i | |||||||
261.9 | −0.481628 | − | 1.32967i | − | 1.22302i | −1.53607 | + | 1.28082i | 1.00000i | −1.62622 | + | 0.589041i | 0.685077 | 2.44288 | + | 1.42559i | 1.50422 | 1.32967 | − | 0.481628i | |||||||
261.10 | −0.481628 | + | 1.32967i | 1.22302i | −1.53607 | − | 1.28082i | − | 1.00000i | −1.62622 | − | 0.589041i | 0.685077 | 2.44288 | − | 1.42559i | 1.50422 | 1.32967 | + | 0.481628i | |||||||
261.11 | −0.0701382 | − | 1.41247i | 0.360301i | −1.99016 | + | 0.198137i | − | 1.00000i | 0.508916 | − | 0.0252709i | 1.97386 | 0.419449 | + | 2.79715i | 2.87018 | −1.41247 | + | 0.0701382i | |||||||
261.12 | −0.0701382 | + | 1.41247i | − | 0.360301i | −1.99016 | − | 0.198137i | 1.00000i | 0.508916 | + | 0.0252709i | 1.97386 | 0.419449 | − | 2.79715i | 2.87018 | −1.41247 | − | 0.0701382i | |||||||
261.13 | 0.579792 | − | 1.28990i | 2.54544i | −1.32768 | − | 1.49575i | − | 1.00000i | 3.28336 | + | 1.47582i | −4.22375 | −2.69914 | + | 0.845354i | −3.47926 | −1.28990 | − | 0.579792i | |||||||
261.14 | 0.579792 | + | 1.28990i | − | 2.54544i | −1.32768 | + | 1.49575i | 1.00000i | 3.28336 | − | 1.47582i | −4.22375 | −2.69914 | − | 0.845354i | −3.47926 | −1.28990 | + | 0.579792i | |||||||
261.15 | 0.670304 | − | 1.24527i | − | 1.79082i | −1.10139 | − | 1.66942i | − | 1.00000i | −2.23005 | − | 1.20039i | 2.36726 | −2.81713 | + | 0.252504i | −0.207044 | −1.24527 | − | 0.670304i | ||||||
261.16 | 0.670304 | + | 1.24527i | 1.79082i | −1.10139 | + | 1.66942i | 1.00000i | −2.23005 | + | 1.20039i | 2.36726 | −2.81713 | − | 0.252504i | −0.207044 | −1.24527 | + | 0.670304i | ||||||||
261.17 | 0.855598 | − | 1.12603i | − | 2.88793i | −0.535903 | − | 1.92686i | 1.00000i | −3.25191 | − | 2.47091i | −0.427933 | −2.62823 | − | 1.04518i | −5.34015 | 1.12603 | + | 0.855598i | |||||||
261.18 | 0.855598 | + | 1.12603i | 2.88793i | −0.535903 | + | 1.92686i | − | 1.00000i | −3.25191 | + | 2.47091i | −0.427933 | −2.62823 | + | 1.04518i | −5.34015 | 1.12603 | − | 0.855598i | |||||||
261.19 | 1.12418 | − | 0.858032i | 3.18499i | 0.527561 | − | 1.92917i | 1.00000i | 2.73282 | + | 3.58050i | −3.77752 | −1.06221 | − | 2.62139i | −7.14416 | 0.858032 | + | 1.12418i | ||||||||
261.20 | 1.12418 | + | 0.858032i | − | 3.18499i | 0.527561 | + | 1.92917i | − | 1.00000i | 2.73282 | − | 3.58050i | −3.77752 | −1.06221 | + | 2.62139i | −7.14416 | 0.858032 | − | 1.12418i | ||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
8.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 520.2.g.a | ✓ | 24 |
4.b | odd | 2 | 1 | 2080.2.g.b | 24 | ||
8.b | even | 2 | 1 | inner | 520.2.g.a | ✓ | 24 |
8.d | odd | 2 | 1 | 2080.2.g.b | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
520.2.g.a | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
520.2.g.a | ✓ | 24 | 8.b | even | 2 | 1 | inner |
2080.2.g.b | 24 | 4.b | odd | 2 | 1 | ||
2080.2.g.b | 24 | 8.d | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 48 T_{3}^{22} + 988 T_{3}^{20} + 11440 T_{3}^{18} + 82240 T_{3}^{16} + 382592 T_{3}^{14} + \cdots + 9216 \) acting on \(S_{2}^{\mathrm{new}}(520, [\chi])\).