Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [810,2,Mod(31,810)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(810, base_ring=CyclotomicField(54))
chi = DirichletCharacter(H, H._module([20, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("810.31");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 810 = 2 \cdot 3^{4} \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 810.q (of order \(27\), degree \(18\), 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: | \(6.46788256372\) |
Analytic rank: | \(0\) |
Dimension: | \(162\) |
Relative dimension: | \(9\) over \(\Q(\zeta_{27})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{27}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31.1 | −0.396080 | − | 0.918216i | −1.67127 | − | 0.454831i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | 0.244321 | + | 1.71473i | 1.90982 | − | 0.452636i | 0.939693 | + | 0.342020i | 2.58626 | + | 1.52029i | 0.939693 | − | 0.342020i |
31.2 | −0.396080 | − | 0.918216i | −1.53152 | + | 0.808981i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | 1.34942 | + | 1.08584i | −4.46797 | + | 1.05893i | 0.939693 | + | 0.342020i | 1.69110 | − | 2.47794i | 0.939693 | − | 0.342020i |
31.3 | −0.396080 | − | 0.918216i | −0.812412 | − | 1.52970i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | −1.08282 | + | 1.35185i | 3.62367 | − | 0.858826i | 0.939693 | + | 0.342020i | −1.67997 | + | 2.48550i | 0.939693 | − | 0.342020i |
31.4 | −0.396080 | − | 0.918216i | −0.721884 | + | 1.57445i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | 1.73161 | + | 0.0392394i | −0.596907 | + | 0.141470i | 0.939693 | + | 0.342020i | −1.95777 | − | 2.27314i | 0.939693 | − | 0.342020i |
31.5 | −0.396080 | − | 0.918216i | 0.0129628 | + | 1.73200i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | 1.58522 | − | 0.697914i | 1.23412 | − | 0.292491i | 0.939693 | + | 0.342020i | −2.99966 | + | 0.0449033i | 0.939693 | − | 0.342020i |
31.6 | −0.396080 | − | 0.918216i | 0.457047 | − | 1.67066i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | −1.71505 | + | 0.242047i | −1.11093 | + | 0.263296i | 0.939693 | + | 0.342020i | −2.58222 | − | 1.52714i | 0.939693 | − | 0.342020i |
31.7 | −0.396080 | − | 0.918216i | 1.37358 | + | 1.05513i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | 0.424789 | − | 1.67915i | 2.01281 | − | 0.477046i | 0.939693 | + | 0.342020i | 0.773417 | + | 2.89859i | 0.939693 | − | 0.342020i |
31.8 | −0.396080 | − | 0.918216i | 1.44566 | − | 0.953971i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | −1.44855 | − | 0.949582i | 3.83233 | − | 0.908278i | 0.939693 | + | 0.342020i | 1.17988 | − | 2.75824i | 0.939693 | − | 0.342020i |
31.9 | −0.396080 | − | 0.918216i | 1.55204 | − | 0.768881i | −0.686242 | + | 0.727374i | −0.0581448 | + | 0.998308i | −1.32073 | − | 1.12057i | −3.93181 | + | 0.931856i | 0.939693 | + | 0.342020i | 1.81764 | − | 2.38666i | 0.939693 | − | 0.342020i |
61.1 | 0.993238 | − | 0.116093i | −1.41520 | + | 0.998609i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | −1.28970 | + | 1.15615i | −0.536847 | − | 1.79320i | 0.939693 | − | 0.342020i | 1.00556 | − | 2.82645i | 0.939693 | + | 0.342020i |
61.2 | 0.993238 | − | 0.116093i | −1.40036 | − | 1.01931i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | −1.50922 | − | 0.849848i | 0.446772 | + | 1.49232i | 0.939693 | − | 0.342020i | 0.922008 | + | 2.85480i | 0.939693 | + | 0.342020i |
61.3 | 0.993238 | − | 0.116093i | −0.906790 | − | 1.47571i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | −1.07198 | − | 1.36046i | 0.893266 | + | 2.98372i | 0.939693 | − | 0.342020i | −1.35546 | + | 2.67633i | 0.939693 | + | 0.342020i |
61.4 | 0.993238 | − | 0.116093i | −0.659316 | + | 1.60166i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | −0.468917 | + | 1.66737i | 1.32137 | + | 4.41367i | 0.939693 | − | 0.342020i | −2.13060 | − | 2.11199i | 0.939693 | + | 0.342020i |
61.5 | 0.993238 | − | 0.116093i | −0.269948 | − | 1.71089i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | −0.466745 | − | 1.66798i | −1.17767 | − | 3.93368i | 0.939693 | − | 0.342020i | −2.85426 | + | 0.923701i | 0.939693 | + | 0.342020i |
61.6 | 0.993238 | − | 0.116093i | 1.33184 | + | 1.10734i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | 1.45139 | + | 0.945230i | 0.508204 | + | 1.69752i | 0.939693 | − | 0.342020i | 0.547617 | + | 2.94960i | 0.939693 | + | 0.342020i |
61.7 | 0.993238 | − | 0.116093i | 1.34364 | − | 1.09300i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | 1.20766 | − | 1.24159i | 1.10743 | + | 3.69908i | 0.939693 | − | 0.342020i | 0.610713 | − | 2.93718i | 0.939693 | + | 0.342020i |
61.8 | 0.993238 | − | 0.116093i | 1.34389 | + | 1.09268i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | 1.46166 | + | 0.929275i | −0.495456 | − | 1.65494i | 0.939693 | − | 0.342020i | 0.612101 | + | 2.93689i | 0.939693 | + | 0.342020i |
61.9 | 0.993238 | − | 0.116093i | 1.51378 | − | 0.841700i | 0.973045 | − | 0.230616i | 0.893633 | + | 0.448799i | 1.40583 | − | 1.01175i | −0.821784 | − | 2.74495i | 0.939693 | − | 0.342020i | 1.58308 | − | 2.54830i | 0.939693 | + | 0.342020i |
121.1 | 0.0581448 | + | 0.998308i | −1.72109 | − | 0.194558i | −0.993238 | + | 0.116093i | 0.973045 | + | 0.230616i | 0.0941566 | − | 1.72949i | 2.76758 | − | 3.71751i | −0.173648 | − | 0.984808i | 2.92429 | + | 0.669704i | −0.173648 | + | 0.984808i |
121.2 | 0.0581448 | + | 0.998308i | −1.45014 | + | 0.947148i | −0.993238 | + | 0.116093i | 0.973045 | + | 0.230616i | −1.02986 | − | 1.39262i | 0.128210 | − | 0.172215i | −0.173648 | − | 0.984808i | 1.20582 | − | 2.74700i | −0.173648 | + | 0.984808i |
See next 80 embeddings (of 162 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
81.g | even | 27 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 810.2.q.b | ✓ | 162 |
81.g | even | 27 | 1 | inner | 810.2.q.b | ✓ | 162 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
810.2.q.b | ✓ | 162 | 1.a | even | 1 | 1 | trivial |
810.2.q.b | ✓ | 162 | 81.g | even | 27 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{162} - 27 T_{7}^{160} + 150 T_{7}^{159} + 756 T_{7}^{158} - 3852 T_{7}^{157} + \cdots + 15\!\cdots\!96 \) acting on \(S_{2}^{\mathrm{new}}(810, [\chi])\).