Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [896,2,Mod(289,896)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(896, base_ring=CyclotomicField(12))
chi = DirichletCharacter(H, H._module([0, 9, 4]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("896.289");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 896 = 2^{7} \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 896.ba (of order \(12\), degree \(4\), not 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: | \(7.15459602111\) |
Analytic rank: | \(0\) |
Dimension: | \(48\) |
Relative dimension: | \(12\) over \(\Q(\zeta_{12})\) |
Twist minimal: | no (minimal twist has level 112) |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
289.1 | 0 | −0.814813 | + | 3.04092i | 0 | −0.501787 | − | 1.87270i | 0 | 1.89831 | − | 1.84294i | 0 | −5.98523 | − | 3.45557i | 0 | ||||||||||
289.2 | 0 | −0.659252 | + | 2.46036i | 0 | 0.502490 | + | 1.87532i | 0 | −0.364450 | + | 2.62053i | 0 | −3.02070 | − | 1.74400i | 0 | ||||||||||
289.3 | 0 | −0.589510 | + | 2.20008i | 0 | 0.622192 | + | 2.32205i | 0 | −2.41058 | − | 1.09047i | 0 | −1.89476 | − | 1.09394i | 0 | ||||||||||
289.4 | 0 | −0.430984 | + | 1.60845i | 0 | 0.522232 | + | 1.94900i | 0 | 1.89075 | + | 1.85069i | 0 | 0.196696 | + | 0.113563i | 0 | ||||||||||
289.5 | 0 | −0.224854 | + | 0.839165i | 0 | −0.847576 | − | 3.16320i | 0 | −0.654939 | − | 2.56341i | 0 | 1.94444 | + | 1.12262i | 0 | ||||||||||
289.6 | 0 | −0.0145698 | + | 0.0543752i | 0 | 0.337028 | + | 1.25781i | 0 | −0.230738 | − | 2.63567i | 0 | 2.59533 | + | 1.49842i | 0 | ||||||||||
289.7 | 0 | 0.221819 | − | 0.827840i | 0 | 1.10095 | + | 4.10878i | 0 | 2.50325 | − | 0.856573i | 0 | 1.96196 | + | 1.13274i | 0 | ||||||||||
289.8 | 0 | 0.222846 | − | 0.831674i | 0 | −0.543265 | − | 2.02749i | 0 | 2.63544 | − | 0.233350i | 0 | 1.95606 | + | 1.12933i | 0 | ||||||||||
289.9 | 0 | 0.312249 | − | 1.16533i | 0 | 0.262843 | + | 0.980942i | 0 | −2.60251 | − | 0.476386i | 0 | 1.33758 | + | 0.772254i | 0 | ||||||||||
289.10 | 0 | 0.523249 | − | 1.95279i | 0 | 0.256983 | + | 0.959072i | 0 | −0.292831 | + | 2.62950i | 0 | −0.941530 | − | 0.543593i | 0 | ||||||||||
289.11 | 0 | 0.672759 | − | 2.51077i | 0 | −0.780276 | − | 2.91203i | 0 | −1.41955 | − | 2.23268i | 0 | −3.25328 | − | 1.87828i | 0 | ||||||||||
289.12 | 0 | 0.781062 | − | 2.91496i | 0 | −0.199758 | − | 0.745506i | 0 | 2.51194 | + | 0.830765i | 0 | −5.28887 | − | 3.05353i | 0 | ||||||||||
417.1 | 0 | −2.91496 | + | 0.781062i | 0 | 0.745506 | + | 0.199758i | 0 | −2.51194 | + | 0.830765i | 0 | 5.28887 | − | 3.05353i | 0 | ||||||||||
417.2 | 0 | −2.51077 | + | 0.672759i | 0 | 2.91203 | + | 0.780276i | 0 | 1.41955 | − | 2.23268i | 0 | 3.25328 | − | 1.87828i | 0 | ||||||||||
417.3 | 0 | −1.95279 | + | 0.523249i | 0 | −0.959072 | − | 0.256983i | 0 | 0.292831 | + | 2.62950i | 0 | 0.941530 | − | 0.543593i | 0 | ||||||||||
417.4 | 0 | −1.16533 | + | 0.312249i | 0 | −0.980942 | − | 0.262843i | 0 | 2.60251 | − | 0.476386i | 0 | −1.33758 | + | 0.772254i | 0 | ||||||||||
417.5 | 0 | −0.831674 | + | 0.222846i | 0 | 2.02749 | + | 0.543265i | 0 | −2.63544 | − | 0.233350i | 0 | −1.95606 | + | 1.12933i | 0 | ||||||||||
417.6 | 0 | −0.827840 | + | 0.221819i | 0 | −4.10878 | − | 1.10095i | 0 | −2.50325 | − | 0.856573i | 0 | −1.96196 | + | 1.13274i | 0 | ||||||||||
417.7 | 0 | 0.0543752 | − | 0.0145698i | 0 | −1.25781 | − | 0.337028i | 0 | 0.230738 | − | 2.63567i | 0 | −2.59533 | + | 1.49842i | 0 | ||||||||||
417.8 | 0 | 0.839165 | − | 0.224854i | 0 | 3.16320 | + | 0.847576i | 0 | 0.654939 | − | 2.56341i | 0 | −1.94444 | + | 1.12262i | 0 | ||||||||||
See all 48 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
7.c | even | 3 | 1 | inner |
16.e | even | 4 | 1 | inner |
112.w | even | 12 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 896.2.ba.f | 48 | |
4.b | odd | 2 | 1 | 896.2.ba.e | 48 | ||
7.c | even | 3 | 1 | inner | 896.2.ba.f | 48 | |
8.b | even | 2 | 1 | 112.2.w.c | ✓ | 48 | |
8.d | odd | 2 | 1 | 448.2.ba.c | 48 | ||
16.e | even | 4 | 1 | 112.2.w.c | ✓ | 48 | |
16.e | even | 4 | 1 | inner | 896.2.ba.f | 48 | |
16.f | odd | 4 | 1 | 448.2.ba.c | 48 | ||
16.f | odd | 4 | 1 | 896.2.ba.e | 48 | ||
28.g | odd | 6 | 1 | 896.2.ba.e | 48 | ||
56.h | odd | 2 | 1 | 784.2.x.o | 48 | ||
56.j | odd | 6 | 1 | 784.2.m.k | 24 | ||
56.j | odd | 6 | 1 | 784.2.x.o | 48 | ||
56.k | odd | 6 | 1 | 448.2.ba.c | 48 | ||
56.p | even | 6 | 1 | 112.2.w.c | ✓ | 48 | |
56.p | even | 6 | 1 | 784.2.m.j | 24 | ||
112.l | odd | 4 | 1 | 784.2.x.o | 48 | ||
112.u | odd | 12 | 1 | 448.2.ba.c | 48 | ||
112.u | odd | 12 | 1 | 896.2.ba.e | 48 | ||
112.w | even | 12 | 1 | 112.2.w.c | ✓ | 48 | |
112.w | even | 12 | 1 | 784.2.m.j | 24 | ||
112.w | even | 12 | 1 | inner | 896.2.ba.f | 48 | |
112.x | odd | 12 | 1 | 784.2.m.k | 24 | ||
112.x | odd | 12 | 1 | 784.2.x.o | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
112.2.w.c | ✓ | 48 | 8.b | even | 2 | 1 | |
112.2.w.c | ✓ | 48 | 16.e | even | 4 | 1 | |
112.2.w.c | ✓ | 48 | 56.p | even | 6 | 1 | |
112.2.w.c | ✓ | 48 | 112.w | even | 12 | 1 | |
448.2.ba.c | 48 | 8.d | odd | 2 | 1 | ||
448.2.ba.c | 48 | 16.f | odd | 4 | 1 | ||
448.2.ba.c | 48 | 56.k | odd | 6 | 1 | ||
448.2.ba.c | 48 | 112.u | odd | 12 | 1 | ||
784.2.m.j | 24 | 56.p | even | 6 | 1 | ||
784.2.m.j | 24 | 112.w | even | 12 | 1 | ||
784.2.m.k | 24 | 56.j | odd | 6 | 1 | ||
784.2.m.k | 24 | 112.x | odd | 12 | 1 | ||
784.2.x.o | 48 | 56.h | odd | 2 | 1 | ||
784.2.x.o | 48 | 56.j | odd | 6 | 1 | ||
784.2.x.o | 48 | 112.l | odd | 4 | 1 | ||
784.2.x.o | 48 | 112.x | odd | 12 | 1 | ||
896.2.ba.e | 48 | 4.b | odd | 2 | 1 | ||
896.2.ba.e | 48 | 16.f | odd | 4 | 1 | ||
896.2.ba.e | 48 | 28.g | odd | 6 | 1 | ||
896.2.ba.e | 48 | 112.u | odd | 12 | 1 | ||
896.2.ba.f | 48 | 1.a | even | 1 | 1 | trivial | |
896.2.ba.f | 48 | 7.c | even | 3 | 1 | inner | |
896.2.ba.f | 48 | 16.e | even | 4 | 1 | inner | |
896.2.ba.f | 48 | 112.w | even | 12 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{48} - 8 T_{3}^{45} - 162 T_{3}^{44} + 24 T_{3}^{43} + 32 T_{3}^{42} + 1116 T_{3}^{41} + \cdots + 194481 \) acting on \(S_{2}^{\mathrm{new}}(896, [\chi])\).