Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1815,2,Mod(364,1815)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1815, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 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("1815.364");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 1815 = 3 \cdot 5 \cdot 11^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 1815.c (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: | \(14.4928479669\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Twist minimal: | no (minimal twist has level 165) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
364.1 | − | 2.72592i | − | 1.00000i | −5.43063 | 1.85250 | + | 1.25229i | −2.72592 | − | 0.486331i | 9.35163i | −1.00000 | 3.41365 | − | 5.04977i | |||||||||||
364.2 | − | 2.59201i | − | 1.00000i | −4.71851 | −0.0953833 | − | 2.23403i | −2.59201 | − | 3.41835i | 7.04639i | −1.00000 | −5.79063 | + | 0.247234i | |||||||||||
364.3 | − | 2.36377i | 1.00000i | −3.58741 | 0.979185 | − | 2.01027i | 2.36377 | 1.71423i | 3.75227i | −1.00000 | −4.75182 | − | 2.31457i | |||||||||||||
364.4 | − | 2.21395i | 1.00000i | −2.90157 | −2.14116 | − | 0.644543i | 2.21395 | 1.59339i | 1.99602i | −1.00000 | −1.42699 | + | 4.74042i | |||||||||||||
364.5 | − | 2.10651i | − | 1.00000i | −2.43738 | −0.823234 | + | 2.07901i | −2.10651 | 3.31633i | 0.921348i | −1.00000 | 4.37946 | + | 1.73415i | ||||||||||||
364.6 | − | 1.90743i | − | 1.00000i | −1.63829 | −2.10308 | − | 0.759628i | −1.90743 | − | 4.45734i | − | 0.689943i | −1.00000 | −1.44894 | + | 4.01149i | ||||||||||
364.7 | − | 1.27093i | 1.00000i | 0.384732 | 1.01340 | + | 1.99324i | 1.27093 | − | 0.483291i | − | 3.03083i | −1.00000 | 2.53328 | − | 1.28796i | |||||||||||
364.8 | − | 0.803366i | − | 1.00000i | 1.35460 | 2.13623 | + | 0.660705i | −0.803366 | 0.508505i | − | 2.69497i | −1.00000 | 0.530788 | − | 1.71617i | |||||||||||
364.9 | − | 0.784131i | 1.00000i | 1.38514 | −1.83964 | − | 1.27111i | 0.784131 | 1.51801i | − | 2.65439i | −1.00000 | −0.996719 | + | 1.44252i | ||||||||||||
364.10 | − | 0.488299i | − | 1.00000i | 1.76156 | 2.10928 | + | 0.742259i | −0.488299 | − | 5.10895i | − | 1.83677i | −1.00000 | 0.362444 | − | 1.02996i | ||||||||||
364.11 | − | 0.298064i | − | 1.00000i | 1.91116 | −1.68093 | − | 1.47460i | −0.298064 | 2.32107i | − | 1.16578i | −1.00000 | −0.439527 | + | 0.501026i | |||||||||||
364.12 | − | 0.288813i | 1.00000i | 1.91659 | −0.407156 | + | 2.19869i | 0.288813 | − | 3.66740i | − | 1.13116i | −1.00000 | 0.635009 | + | 0.117592i | |||||||||||
364.13 | 0.288813i | − | 1.00000i | 1.91659 | −0.407156 | − | 2.19869i | 0.288813 | 3.66740i | 1.13116i | −1.00000 | 0.635009 | − | 0.117592i | |||||||||||||
364.14 | 0.298064i | 1.00000i | 1.91116 | −1.68093 | + | 1.47460i | −0.298064 | − | 2.32107i | 1.16578i | −1.00000 | −0.439527 | − | 0.501026i | |||||||||||||
364.15 | 0.488299i | 1.00000i | 1.76156 | 2.10928 | − | 0.742259i | −0.488299 | 5.10895i | 1.83677i | −1.00000 | 0.362444 | + | 1.02996i | ||||||||||||||
364.16 | 0.784131i | − | 1.00000i | 1.38514 | −1.83964 | + | 1.27111i | 0.784131 | − | 1.51801i | 2.65439i | −1.00000 | −0.996719 | − | 1.44252i | ||||||||||||
364.17 | 0.803366i | 1.00000i | 1.35460 | 2.13623 | − | 0.660705i | −0.803366 | − | 0.508505i | 2.69497i | −1.00000 | 0.530788 | + | 1.71617i | |||||||||||||
364.18 | 1.27093i | − | 1.00000i | 0.384732 | 1.01340 | − | 1.99324i | 1.27093 | 0.483291i | 3.03083i | −1.00000 | 2.53328 | + | 1.28796i | |||||||||||||
364.19 | 1.90743i | 1.00000i | −1.63829 | −2.10308 | + | 0.759628i | −1.90743 | 4.45734i | 0.689943i | −1.00000 | −1.44894 | − | 4.01149i | ||||||||||||||
364.20 | 2.10651i | 1.00000i | −2.43738 | −0.823234 | − | 2.07901i | −2.10651 | − | 3.31633i | − | 0.921348i | −1.00000 | 4.37946 | − | 1.73415i | ||||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.b | even | 2 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 1815.2.c.j | 24 | |
5.b | even | 2 | 1 | inner | 1815.2.c.j | 24 | |
5.c | odd | 4 | 1 | 9075.2.a.dy | 12 | ||
5.c | odd | 4 | 1 | 9075.2.a.dz | 12 | ||
11.b | odd | 2 | 1 | 1815.2.c.k | 24 | ||
11.c | even | 5 | 2 | 165.2.s.a | ✓ | 48 | |
33.h | odd | 10 | 2 | 495.2.ba.c | 48 | ||
55.d | odd | 2 | 1 | 1815.2.c.k | 24 | ||
55.e | even | 4 | 1 | 9075.2.a.dx | 12 | ||
55.e | even | 4 | 1 | 9075.2.a.ea | 12 | ||
55.j | even | 10 | 2 | 165.2.s.a | ✓ | 48 | |
55.k | odd | 20 | 2 | 825.2.n.o | 24 | ||
55.k | odd | 20 | 2 | 825.2.n.p | 24 | ||
165.o | odd | 10 | 2 | 495.2.ba.c | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
165.2.s.a | ✓ | 48 | 11.c | even | 5 | 2 | |
165.2.s.a | ✓ | 48 | 55.j | even | 10 | 2 | |
495.2.ba.c | 48 | 33.h | odd | 10 | 2 | ||
495.2.ba.c | 48 | 165.o | odd | 10 | 2 | ||
825.2.n.o | 24 | 55.k | odd | 20 | 2 | ||
825.2.n.p | 24 | 55.k | odd | 20 | 2 | ||
1815.2.c.j | 24 | 1.a | even | 1 | 1 | trivial | |
1815.2.c.j | 24 | 5.b | even | 2 | 1 | inner | |
1815.2.c.k | 24 | 11.b | odd | 2 | 1 | ||
1815.2.c.k | 24 | 55.d | odd | 2 | 1 | ||
9075.2.a.dx | 12 | 55.e | even | 4 | 1 | ||
9075.2.a.dy | 12 | 5.c | odd | 4 | 1 | ||
9075.2.a.dz | 12 | 5.c | odd | 4 | 1 | ||
9075.2.a.ea | 12 | 55.e | even | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1815, [\chi])\):
\( T_{2}^{24} + 36 T_{2}^{22} + 552 T_{2}^{20} + 4702 T_{2}^{18} + 24334 T_{2}^{16} + 78666 T_{2}^{14} + \cdots + 25 \) |
\( T_{19}^{12} - 16 T_{19}^{11} + 16 T_{19}^{10} + 942 T_{19}^{9} - 4470 T_{19}^{8} - 10358 T_{19}^{7} + \cdots + 734525 \) |