Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [738,2,Mod(289,738)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(738, base_ring=CyclotomicField(20))
chi = DirichletCharacter(H, H._module([0, 13]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("738.289");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 738 = 2 \cdot 3^{2} \cdot 41 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 738.u (of order \(20\), degree \(8\), 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: | \(5.89295966917\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(3\) over \(\Q(\zeta_{20})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{20}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
289.1 | 0.951057 | − | 0.309017i | 0 | 0.809017 | − | 0.587785i | −1.28802 | − | 1.77281i | 0 | −1.13802 | − | 2.23348i | 0.587785 | − | 0.809017i | 0 | −1.77281 | − | 1.28802i | ||||||
289.2 | 0.951057 | − | 0.309017i | 0 | 0.809017 | − | 0.587785i | 0.299981 | + | 0.412889i | 0 | −0.410194 | − | 0.805051i | 0.587785 | − | 0.809017i | 0 | 0.412889 | + | 0.299981i | ||||||
289.3 | 0.951057 | − | 0.309017i | 0 | 0.809017 | − | 0.587785i | 1.04558 | + | 1.43911i | 0 | 1.54821 | + | 3.03854i | 0.587785 | − | 0.809017i | 0 | 1.43911 | + | 1.04558i | ||||||
307.1 | −0.951057 | − | 0.309017i | 0 | 0.809017 | + | 0.587785i | −2.42150 | + | 3.33291i | 0 | −4.09923 | − | 2.08866i | −0.587785 | − | 0.809017i | 0 | 3.33291 | − | 2.42150i | ||||||
307.2 | −0.951057 | − | 0.309017i | 0 | 0.809017 | + | 0.587785i | −0.718242 | + | 0.988576i | 0 | 3.30863 | + | 1.68583i | −0.587785 | − | 0.809017i | 0 | 0.988576 | − | 0.718242i | ||||||
307.3 | −0.951057 | − | 0.309017i | 0 | 0.809017 | + | 0.587785i | 0.846136 | − | 1.16461i | 0 | 0.790595 | + | 0.402828i | −0.587785 | − | 0.809017i | 0 | −1.16461 | + | 0.846136i | ||||||
361.1 | −0.587785 | + | 0.809017i | 0 | −0.309017 | − | 0.951057i | −1.42143 | + | 0.461849i | 0 | 0.476878 | − | 3.01089i | 0.951057 | + | 0.309017i | 0 | 0.461849 | − | 1.42143i | ||||||
361.2 | −0.587785 | + | 0.809017i | 0 | −0.309017 | − | 0.951057i | 1.26355 | − | 0.410553i | 0 | −0.447363 | + | 2.82454i | 0.951057 | + | 0.309017i | 0 | −0.410553 | + | 1.26355i | ||||||
361.3 | −0.587785 | + | 0.809017i | 0 | −0.309017 | − | 0.951057i | 3.17802 | − | 1.03260i | 0 | −0.0295159 | + | 0.186356i | 0.951057 | + | 0.309017i | 0 | −1.03260 | + | 3.17802i | ||||||
415.1 | −0.587785 | − | 0.809017i | 0 | −0.309017 | + | 0.951057i | −1.42143 | − | 0.461849i | 0 | 0.476878 | + | 3.01089i | 0.951057 | − | 0.309017i | 0 | 0.461849 | + | 1.42143i | ||||||
415.2 | −0.587785 | − | 0.809017i | 0 | −0.309017 | + | 0.951057i | 1.26355 | + | 0.410553i | 0 | −0.447363 | − | 2.82454i | 0.951057 | − | 0.309017i | 0 | −0.410553 | − | 1.26355i | ||||||
415.3 | −0.587785 | − | 0.809017i | 0 | −0.309017 | + | 0.951057i | 3.17802 | + | 1.03260i | 0 | −0.0295159 | − | 0.186356i | 0.951057 | − | 0.309017i | 0 | −1.03260 | − | 3.17802i | ||||||
487.1 | 0.587785 | + | 0.809017i | 0 | −0.309017 | + | 0.951057i | −3.30848 | − | 1.07499i | 0 | 3.25475 | − | 0.515502i | −0.951057 | + | 0.309017i | 0 | −1.07499 | − | 3.30848i | ||||||
487.2 | 0.587785 | + | 0.809017i | 0 | −0.309017 | + | 0.951057i | 0.210253 | + | 0.0683152i | 0 | −4.01959 | + | 0.636641i | −0.951057 | + | 0.309017i | 0 | 0.0683152 | + | 0.210253i | ||||||
487.3 | 0.587785 | + | 0.809017i | 0 | −0.309017 | + | 0.951057i | 2.31414 | + | 0.751911i | 0 | 0.764846 | − | 0.121140i | −0.951057 | + | 0.309017i | 0 | 0.751911 | + | 2.31414i | ||||||
541.1 | 0.587785 | − | 0.809017i | 0 | −0.309017 | − | 0.951057i | −3.30848 | + | 1.07499i | 0 | 3.25475 | + | 0.515502i | −0.951057 | − | 0.309017i | 0 | −1.07499 | + | 3.30848i | ||||||
541.2 | 0.587785 | − | 0.809017i | 0 | −0.309017 | − | 0.951057i | 0.210253 | − | 0.0683152i | 0 | −4.01959 | − | 0.636641i | −0.951057 | − | 0.309017i | 0 | 0.0683152 | − | 0.210253i | ||||||
541.3 | 0.587785 | − | 0.809017i | 0 | −0.309017 | − | 0.951057i | 2.31414 | − | 0.751911i | 0 | 0.764846 | + | 0.121140i | −0.951057 | − | 0.309017i | 0 | 0.751911 | − | 2.31414i | ||||||
595.1 | 0.951057 | + | 0.309017i | 0 | 0.809017 | + | 0.587785i | −1.28802 | + | 1.77281i | 0 | −1.13802 | + | 2.23348i | 0.587785 | + | 0.809017i | 0 | −1.77281 | + | 1.28802i | ||||||
595.2 | 0.951057 | + | 0.309017i | 0 | 0.809017 | + | 0.587785i | 0.299981 | − | 0.412889i | 0 | −0.410194 | + | 0.805051i | 0.587785 | + | 0.809017i | 0 | 0.412889 | − | 0.299981i | ||||||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
41.g | even | 20 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 738.2.u.c | ✓ | 24 |
3.b | odd | 2 | 1 | 738.2.u.d | yes | 24 | |
41.g | even | 20 | 1 | inner | 738.2.u.c | ✓ | 24 |
123.m | odd | 20 | 1 | 738.2.u.d | yes | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
738.2.u.c | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
738.2.u.c | ✓ | 24 | 41.g | even | 20 | 1 | inner |
738.2.u.d | yes | 24 | 3.b | odd | 2 | 1 | |
738.2.u.d | yes | 24 | 123.m | odd | 20 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{24} - 18 T_{5}^{22} - 50 T_{5}^{21} + 246 T_{5}^{20} + 900 T_{5}^{19} - 2245 T_{5}^{18} + \cdots + 32041 \) acting on \(S_{2}^{\mathrm{new}}(738, [\chi])\).