Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [729,4,Mod(1,729)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(729, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("729.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 729 = 3^{6} \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 729.a (trivial) |
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: | yes |
Analytic conductor: | \(43.0123923942\) |
Analytic rank: | \(1\) |
Dimension: | \(24\) |
Twist minimal: | no (minimal twist has level 27) |
Fricke sign: | \(-1\) |
Sato-Tate group: | $\mathrm{SU}(2)$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.1 | −5.30748 | 0 | 20.1693 | −5.51457 | 0 | 24.6230 | −64.5884 | 0 | 29.2684 | ||||||||||||||||||
1.2 | −5.29813 | 0 | 20.0701 | 10.5105 | 0 | −7.73120 | −63.9491 | 0 | −55.6861 | ||||||||||||||||||
1.3 | −5.21012 | 0 | 19.1454 | −14.0463 | 0 | −10.3001 | −58.0686 | 0 | 73.1831 | ||||||||||||||||||
1.4 | −4.31240 | 0 | 10.5968 | −18.5830 | 0 | 18.8092 | −11.1984 | 0 | 80.1375 | ||||||||||||||||||
1.5 | −3.68865 | 0 | 5.60613 | 1.61561 | 0 | 33.9652 | 8.83016 | 0 | −5.95943 | ||||||||||||||||||
1.6 | −3.18906 | 0 | 2.17013 | 14.3358 | 0 | −32.2016 | 18.5918 | 0 | −45.7179 | ||||||||||||||||||
1.7 | −3.18772 | 0 | 2.16159 | 7.17014 | 0 | 4.85729 | 18.6113 | 0 | −22.8564 | ||||||||||||||||||
1.8 | −2.95196 | 0 | 0.714070 | −17.0434 | 0 | −12.8302 | 21.5078 | 0 | 50.3115 | ||||||||||||||||||
1.9 | −2.25787 | 0 | −2.90200 | 19.2297 | 0 | 0.653898 | 24.6154 | 0 | −43.4182 | ||||||||||||||||||
1.10 | −1.04608 | 0 | −6.90572 | −15.4345 | 0 | −23.5429 | 15.5926 | 0 | 16.1457 | ||||||||||||||||||
1.11 | −0.991947 | 0 | −7.01604 | −0.144478 | 0 | 25.3747 | 14.8951 | 0 | 0.143314 | ||||||||||||||||||
1.12 | −0.841078 | 0 | −7.29259 | 10.8166 | 0 | −26.6917 | 12.8623 | 0 | −9.09757 | ||||||||||||||||||
1.13 | −0.644468 | 0 | −7.58466 | 0.514271 | 0 | −9.60308 | 10.0438 | 0 | −0.331431 | ||||||||||||||||||
1.14 | 0.298855 | 0 | −7.91069 | −20.0516 | 0 | 21.4905 | −4.75498 | 0 | −5.99252 | ||||||||||||||||||
1.15 | 1.15359 | 0 | −6.66923 | −7.67988 | 0 | 12.9720 | −16.9223 | 0 | −8.85943 | ||||||||||||||||||
1.16 | 1.82173 | 0 | −4.68131 | 13.5279 | 0 | 22.8583 | −23.1019 | 0 | 24.6442 | ||||||||||||||||||
1.17 | 1.94042 | 0 | −4.23475 | 2.70886 | 0 | −11.9176 | −23.7406 | 0 | 5.25633 | ||||||||||||||||||
1.18 | 2.33077 | 0 | −2.56749 | 6.24132 | 0 | −2.70290 | −24.6304 | 0 | 14.5471 | ||||||||||||||||||
1.19 | 3.41269 | 0 | 3.64648 | 10.9823 | 0 | −4.40595 | −14.8572 | 0 | 37.4794 | ||||||||||||||||||
1.20 | 3.75799 | 0 | 6.12246 | −6.10578 | 0 | 17.2567 | −7.05576 | 0 | −22.9454 | ||||||||||||||||||
See all 24 embeddings |
Atkin-Lehner signs
\( p \) | Sign |
---|---|
\(3\) | \(-1\) |
Inner twists
This newform does not admit any (nontrivial) inner twists.
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 729.4.a.c | 24 | |
3.b | odd | 2 | 1 | 729.4.a.d | 24 | ||
27.e | even | 9 | 2 | 81.4.e.a | 48 | ||
27.e | even | 9 | 2 | 243.4.e.a | 48 | ||
27.e | even | 9 | 2 | 243.4.e.b | 48 | ||
27.f | odd | 18 | 2 | 27.4.e.a | ✓ | 48 | |
27.f | odd | 18 | 2 | 243.4.e.c | 48 | ||
27.f | odd | 18 | 2 | 243.4.e.d | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
27.4.e.a | ✓ | 48 | 27.f | odd | 18 | 2 | |
81.4.e.a | 48 | 27.e | even | 9 | 2 | ||
243.4.e.a | 48 | 27.e | even | 9 | 2 | ||
243.4.e.b | 48 | 27.e | even | 9 | 2 | ||
243.4.e.c | 48 | 27.f | odd | 18 | 2 | ||
243.4.e.d | 48 | 27.f | odd | 18 | 2 | ||
729.4.a.c | 24 | 1.a | even | 1 | 1 | trivial | |
729.4.a.d | 24 | 3.b | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{24} + 6 T_{2}^{23} - 120 T_{2}^{22} - 735 T_{2}^{21} + 6102 T_{2}^{20} + 38547 T_{2}^{19} + \cdots - 1375087104 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(729))\).