Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [900,2,Mod(257,900)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(900, base_ring=CyclotomicField(12))
chi = DirichletCharacter(H, H._module([0, 10, 3]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("900.257");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 900 = 2^{2} \cdot 3^{2} \cdot 5^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 900.be (of order \(12\), degree \(4\), 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: | \(7.18653618192\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(6\) over \(\Q(\zeta_{12})\) |
Twist minimal: | no (minimal twist has level 180) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{12}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
257.1 | 0 | −1.70261 | + | 0.318010i | 0 | 0 | 0 | 0.252396 | − | 0.941955i | 0 | 2.79774 | − | 1.08289i | 0 | ||||||||||||
257.2 | 0 | −1.04282 | − | 1.38294i | 0 | 0 | 0 | −1.04520 | + | 3.90075i | 0 | −0.825048 | + | 2.88432i | 0 | ||||||||||||
257.3 | 0 | −0.483525 | − | 1.66319i | 0 | 0 | 0 | 1.23944 | − | 4.62566i | 0 | −2.53241 | + | 1.60839i | 0 | ||||||||||||
257.4 | 0 | −0.438358 | + | 1.67566i | 0 | 0 | 0 | 0.290218 | − | 1.08311i | 0 | −2.61569 | − | 1.46908i | 0 | ||||||||||||
257.5 | 0 | 1.60329 | − | 0.655337i | 0 | 0 | 0 | −0.901926 | + | 3.36603i | 0 | 2.14107 | − | 2.10139i | 0 | ||||||||||||
257.6 | 0 | 1.69800 | + | 0.341771i | 0 | 0 | 0 | 0.165071 | − | 0.616053i | 0 | 2.76639 | + | 1.16065i | 0 | ||||||||||||
293.1 | 0 | −1.67566 | − | 0.438358i | 0 | 0 | 0 | −1.08311 | − | 0.290218i | 0 | 2.61569 | + | 1.46908i | 0 | ||||||||||||
293.2 | 0 | −0.341771 | + | 1.69800i | 0 | 0 | 0 | −0.616053 | − | 0.165071i | 0 | −2.76639 | − | 1.16065i | 0 | ||||||||||||
293.3 | 0 | −0.318010 | − | 1.70261i | 0 | 0 | 0 | −0.941955 | − | 0.252396i | 0 | −2.79774 | + | 1.08289i | 0 | ||||||||||||
293.4 | 0 | 0.655337 | + | 1.60329i | 0 | 0 | 0 | 3.36603 | + | 0.901926i | 0 | −2.14107 | + | 2.10139i | 0 | ||||||||||||
293.5 | 0 | 1.38294 | − | 1.04282i | 0 | 0 | 0 | 3.90075 | + | 1.04520i | 0 | 0.825048 | − | 2.88432i | 0 | ||||||||||||
293.6 | 0 | 1.66319 | − | 0.483525i | 0 | 0 | 0 | −4.62566 | − | 1.23944i | 0 | 2.53241 | − | 1.60839i | 0 | ||||||||||||
857.1 | 0 | −1.67566 | + | 0.438358i | 0 | 0 | 0 | −1.08311 | + | 0.290218i | 0 | 2.61569 | − | 1.46908i | 0 | ||||||||||||
857.2 | 0 | −0.341771 | − | 1.69800i | 0 | 0 | 0 | −0.616053 | + | 0.165071i | 0 | −2.76639 | + | 1.16065i | 0 | ||||||||||||
857.3 | 0 | −0.318010 | + | 1.70261i | 0 | 0 | 0 | −0.941955 | + | 0.252396i | 0 | −2.79774 | − | 1.08289i | 0 | ||||||||||||
857.4 | 0 | 0.655337 | − | 1.60329i | 0 | 0 | 0 | 3.36603 | − | 0.901926i | 0 | −2.14107 | − | 2.10139i | 0 | ||||||||||||
857.5 | 0 | 1.38294 | + | 1.04282i | 0 | 0 | 0 | 3.90075 | − | 1.04520i | 0 | 0.825048 | + | 2.88432i | 0 | ||||||||||||
857.6 | 0 | 1.66319 | + | 0.483525i | 0 | 0 | 0 | −4.62566 | + | 1.23944i | 0 | 2.53241 | + | 1.60839i | 0 | ||||||||||||
893.1 | 0 | −1.70261 | − | 0.318010i | 0 | 0 | 0 | 0.252396 | + | 0.941955i | 0 | 2.79774 | + | 1.08289i | 0 | ||||||||||||
893.2 | 0 | −1.04282 | + | 1.38294i | 0 | 0 | 0 | −1.04520 | − | 3.90075i | 0 | −0.825048 | − | 2.88432i | 0 | ||||||||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.c | odd | 4 | 1 | inner |
9.d | odd | 6 | 1 | inner |
45.l | even | 12 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 900.2.be.e | 24 | |
3.b | odd | 2 | 1 | 2700.2.bf.e | 24 | ||
5.b | even | 2 | 1 | 180.2.w.a | ✓ | 24 | |
5.c | odd | 4 | 1 | 180.2.w.a | ✓ | 24 | |
5.c | odd | 4 | 1 | inner | 900.2.be.e | 24 | |
9.c | even | 3 | 1 | 2700.2.bf.e | 24 | ||
9.d | odd | 6 | 1 | inner | 900.2.be.e | 24 | |
15.d | odd | 2 | 1 | 540.2.x.a | 24 | ||
15.e | even | 4 | 1 | 540.2.x.a | 24 | ||
15.e | even | 4 | 1 | 2700.2.bf.e | 24 | ||
20.d | odd | 2 | 1 | 720.2.cu.d | 24 | ||
20.e | even | 4 | 1 | 720.2.cu.d | 24 | ||
45.h | odd | 6 | 1 | 180.2.w.a | ✓ | 24 | |
45.h | odd | 6 | 1 | 1620.2.j.b | 24 | ||
45.j | even | 6 | 1 | 540.2.x.a | 24 | ||
45.j | even | 6 | 1 | 1620.2.j.b | 24 | ||
45.k | odd | 12 | 1 | 540.2.x.a | 24 | ||
45.k | odd | 12 | 1 | 1620.2.j.b | 24 | ||
45.k | odd | 12 | 1 | 2700.2.bf.e | 24 | ||
45.l | even | 12 | 1 | 180.2.w.a | ✓ | 24 | |
45.l | even | 12 | 1 | inner | 900.2.be.e | 24 | |
45.l | even | 12 | 1 | 1620.2.j.b | 24 | ||
180.n | even | 6 | 1 | 720.2.cu.d | 24 | ||
180.v | odd | 12 | 1 | 720.2.cu.d | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
180.2.w.a | ✓ | 24 | 5.b | even | 2 | 1 | |
180.2.w.a | ✓ | 24 | 5.c | odd | 4 | 1 | |
180.2.w.a | ✓ | 24 | 45.h | odd | 6 | 1 | |
180.2.w.a | ✓ | 24 | 45.l | even | 12 | 1 | |
540.2.x.a | 24 | 15.d | odd | 2 | 1 | ||
540.2.x.a | 24 | 15.e | even | 4 | 1 | ||
540.2.x.a | 24 | 45.j | even | 6 | 1 | ||
540.2.x.a | 24 | 45.k | odd | 12 | 1 | ||
720.2.cu.d | 24 | 20.d | odd | 2 | 1 | ||
720.2.cu.d | 24 | 20.e | even | 4 | 1 | ||
720.2.cu.d | 24 | 180.n | even | 6 | 1 | ||
720.2.cu.d | 24 | 180.v | odd | 12 | 1 | ||
900.2.be.e | 24 | 1.a | even | 1 | 1 | trivial | |
900.2.be.e | 24 | 5.c | odd | 4 | 1 | inner | |
900.2.be.e | 24 | 9.d | odd | 6 | 1 | inner | |
900.2.be.e | 24 | 45.l | even | 12 | 1 | inner | |
1620.2.j.b | 24 | 45.h | odd | 6 | 1 | ||
1620.2.j.b | 24 | 45.j | even | 6 | 1 | ||
1620.2.j.b | 24 | 45.k | odd | 12 | 1 | ||
1620.2.j.b | 24 | 45.l | even | 12 | 1 | ||
2700.2.bf.e | 24 | 3.b | odd | 2 | 1 | ||
2700.2.bf.e | 24 | 9.c | even | 3 | 1 | ||
2700.2.bf.e | 24 | 15.e | even | 4 | 1 | ||
2700.2.bf.e | 24 | 45.k | odd | 12 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{24} + 4 T_{7}^{21} - 471 T_{7}^{20} - 264 T_{7}^{19} + 8 T_{7}^{18} + 4986 T_{7}^{17} + \cdots + 4879681 \) acting on \(S_{2}^{\mathrm{new}}(900, [\chi])\).