Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [153,4,Mod(19,153)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(153, base_ring=CyclotomicField(8))
chi = DirichletCharacter(H, H._module([0, 7]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("153.19");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 153 = 3^{2} \cdot 17 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 153.l (of order \(8\), 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: | \(9.02729223088\) |
Analytic rank: | \(0\) |
Dimension: | \(32\) |
Relative dimension: | \(8\) over \(\Q(\zeta_{8})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{8}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
19.1 | −3.22560 | − | 3.22560i | 0 | 12.8090i | −2.92988 | − | 7.07335i | 0 | −4.41551 | + | 10.6600i | 15.5118 | − | 15.5118i | 0 | −13.3652 | + | 32.2664i | ||||||||
19.2 | −2.60260 | − | 2.60260i | 0 | 5.54705i | 7.10732 | + | 17.1586i | 0 | 0.546150 | − | 1.31852i | −6.38404 | + | 6.38404i | 0 | 26.1594 | − | 63.1545i | ||||||||
19.3 | −1.56233 | − | 1.56233i | 0 | − | 3.11822i | −3.46961 | − | 8.37637i | 0 | 11.4295 | − | 27.5933i | −17.3704 | + | 17.3704i | 0 | −7.66601 | + | 18.5074i | |||||||
19.4 | −0.509685 | − | 0.509685i | 0 | − | 7.48044i | 3.53692 | + | 8.53887i | 0 | −6.14596 | + | 14.8377i | −7.89014 | + | 7.89014i | 0 | 2.54942 | − | 6.15484i | |||||||
19.5 | 0.509685 | + | 0.509685i | 0 | − | 7.48044i | −3.53692 | − | 8.53887i | 0 | −6.14596 | + | 14.8377i | 7.89014 | − | 7.89014i | 0 | 2.54942 | − | 6.15484i | |||||||
19.6 | 1.56233 | + | 1.56233i | 0 | − | 3.11822i | 3.46961 | + | 8.37637i | 0 | 11.4295 | − | 27.5933i | 17.3704 | − | 17.3704i | 0 | −7.66601 | + | 18.5074i | |||||||
19.7 | 2.60260 | + | 2.60260i | 0 | 5.54705i | −7.10732 | − | 17.1586i | 0 | 0.546150 | − | 1.31852i | 6.38404 | − | 6.38404i | 0 | 26.1594 | − | 63.1545i | ||||||||
19.8 | 3.22560 | + | 3.22560i | 0 | 12.8090i | 2.92988 | + | 7.07335i | 0 | −4.41551 | + | 10.6600i | −15.5118 | + | 15.5118i | 0 | −13.3652 | + | 32.2664i | ||||||||
100.1 | −3.60798 | − | 3.60798i | 0 | 18.0350i | 10.0551 | − | 4.16494i | 0 | −24.1664 | − | 10.0100i | 36.2060 | − | 36.2060i | 0 | −51.3054 | − | 21.2514i | ||||||||
100.2 | −2.93590 | − | 2.93590i | 0 | 9.23901i | −10.1803 | + | 4.21680i | 0 | 16.5093 | + | 6.83839i | 3.63760 | − | 3.63760i | 0 | 42.2683 | + | 17.5081i | ||||||||
100.3 | −1.39664 | − | 1.39664i | 0 | − | 4.09877i | 0.571583 | − | 0.236758i | 0 | −12.7805 | − | 5.29386i | −16.8977 | + | 16.8977i | 0 | −1.12896 | − | 0.467632i | |||||||
100.4 | −0.730557 | − | 0.730557i | 0 | − | 6.93257i | 16.9495 | − | 7.02071i | 0 | 19.0233 | + | 7.87972i | −10.9091 | + | 10.9091i | 0 | −17.5116 | − | 7.25354i | |||||||
100.5 | 0.730557 | + | 0.730557i | 0 | − | 6.93257i | −16.9495 | + | 7.02071i | 0 | 19.0233 | + | 7.87972i | 10.9091 | − | 10.9091i | 0 | −17.5116 | − | 7.25354i | |||||||
100.6 | 1.39664 | + | 1.39664i | 0 | − | 4.09877i | −0.571583 | + | 0.236758i | 0 | −12.7805 | − | 5.29386i | 16.8977 | − | 16.8977i | 0 | −1.12896 | − | 0.467632i | |||||||
100.7 | 2.93590 | + | 2.93590i | 0 | 9.23901i | 10.1803 | − | 4.21680i | 0 | 16.5093 | + | 6.83839i | −3.63760 | + | 3.63760i | 0 | 42.2683 | + | 17.5081i | ||||||||
100.8 | 3.60798 | + | 3.60798i | 0 | 18.0350i | −10.0551 | + | 4.16494i | 0 | −24.1664 | − | 10.0100i | −36.2060 | + | 36.2060i | 0 | −51.3054 | − | 21.2514i | ||||||||
127.1 | −3.60798 | + | 3.60798i | 0 | − | 18.0350i | 10.0551 | + | 4.16494i | 0 | −24.1664 | + | 10.0100i | 36.2060 | + | 36.2060i | 0 | −51.3054 | + | 21.2514i | |||||||
127.2 | −2.93590 | + | 2.93590i | 0 | − | 9.23901i | −10.1803 | − | 4.21680i | 0 | 16.5093 | − | 6.83839i | 3.63760 | + | 3.63760i | 0 | 42.2683 | − | 17.5081i | |||||||
127.3 | −1.39664 | + | 1.39664i | 0 | 4.09877i | 0.571583 | + | 0.236758i | 0 | −12.7805 | + | 5.29386i | −16.8977 | − | 16.8977i | 0 | −1.12896 | + | 0.467632i | ||||||||
127.4 | −0.730557 | + | 0.730557i | 0 | 6.93257i | 16.9495 | + | 7.02071i | 0 | 19.0233 | − | 7.87972i | −10.9091 | − | 10.9091i | 0 | −17.5116 | + | 7.25354i | ||||||||
See all 32 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
3.b | odd | 2 | 1 | inner |
17.d | even | 8 | 1 | inner |
51.g | odd | 8 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 153.4.l.b | ✓ | 32 |
3.b | odd | 2 | 1 | inner | 153.4.l.b | ✓ | 32 |
17.d | even | 8 | 1 | inner | 153.4.l.b | ✓ | 32 |
51.g | odd | 8 | 1 | inner | 153.4.l.b | ✓ | 32 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
153.4.l.b | ✓ | 32 | 1.a | even | 1 | 1 | trivial |
153.4.l.b | ✓ | 32 | 3.b | odd | 2 | 1 | inner |
153.4.l.b | ✓ | 32 | 17.d | even | 8 | 1 | inner |
153.4.l.b | ✓ | 32 | 51.g | odd | 8 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{32} + 1632 T_{2}^{28} + 946842 T_{2}^{24} + 238027740 T_{2}^{20} + 24537184105 T_{2}^{16} + \cdots + 1785793904896 \) acting on \(S_{4}^{\mathrm{new}}(153, [\chi])\).