Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [800,6,Mod(1,800)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(800, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0]))
N = Newforms(chi, 6, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("800.1");
S:= CuspForms(chi, 6);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 800 = 2^{5} \cdot 5^{2} \) |
| Weight: | \( k \) | \(=\) | \( 6 \) |
| Character orbit: | \([\chi]\) | \(=\) | 800.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: | \(128.307055850\) |
| Analytic rank: | \(1\) |
| Dimension: | \(2\) |
| Coefficient field: | \(\Q(\sqrt{3}) \) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{2} - 3 \)
|
| Coefficient ring: | \(\Z[a_1, a_2, a_3]\) |
| Coefficient ring index: | \( 2^{4} \) |
| Twist minimal: | no (minimal twist has level 32) |
| Fricke sign: | \(1\) |
| Sato-Tate group: | $\mathrm{SU}(2)$ |
$q$-expansion
comment: q-expansion
sage: f.q_expansion() # note that sage often uses an isomorphic number field
gp: mfcoefs(f, 20)
Coefficients of the \(q\)-expansion are expressed in terms of \(\beta = 16\sqrt{3}\). We also show the integral \(q\)-expansion of the trace form.
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 | \(\iota_m(\nu)\) | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.1 |
|
0 | −27.7128 | 0 | 0 | 0 | 166.277 | 0 | 525.000 | 0 | ||||||||||||||||||||||||
| 1.2 | 0 | 27.7128 | 0 | 0 | 0 | −166.277 | 0 | 525.000 | 0 | |||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(1\) |
| \(5\) | \(1\) |
Inner twists
| Char | Parity | Ord | Mult | Type |
|---|---|---|---|---|
| 1.a | even | 1 | 1 | trivial |
| 4.b | odd | 2 | 1 | inner |
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 800.6.a.k | 2 | |
| 4.b | odd | 2 | 1 | inner | 800.6.a.k | 2 | |
| 5.b | even | 2 | 1 | 32.6.a.d | ✓ | 2 | |
| 5.c | odd | 4 | 2 | 800.6.c.d | 4 | ||
| 15.d | odd | 2 | 1 | 288.6.a.l | 2 | ||
| 20.d | odd | 2 | 1 | 32.6.a.d | ✓ | 2 | |
| 20.e | even | 4 | 2 | 800.6.c.d | 4 | ||
| 40.e | odd | 2 | 1 | 64.6.a.h | 2 | ||
| 40.f | even | 2 | 1 | 64.6.a.h | 2 | ||
| 60.h | even | 2 | 1 | 288.6.a.l | 2 | ||
| 80.k | odd | 4 | 2 | 256.6.b.l | 4 | ||
| 80.q | even | 4 | 2 | 256.6.b.l | 4 | ||
| 120.i | odd | 2 | 1 | 576.6.a.bp | 2 | ||
| 120.m | even | 2 | 1 | 576.6.a.bp | 2 | ||
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 32.6.a.d | ✓ | 2 | 5.b | even | 2 | 1 | |
| 32.6.a.d | ✓ | 2 | 20.d | odd | 2 | 1 | |
| 64.6.a.h | 2 | 40.e | odd | 2 | 1 | ||
| 64.6.a.h | 2 | 40.f | even | 2 | 1 | ||
| 256.6.b.l | 4 | 80.k | odd | 4 | 2 | ||
| 256.6.b.l | 4 | 80.q | even | 4 | 2 | ||
| 288.6.a.l | 2 | 15.d | odd | 2 | 1 | ||
| 288.6.a.l | 2 | 60.h | even | 2 | 1 | ||
| 576.6.a.bp | 2 | 120.i | odd | 2 | 1 | ||
| 576.6.a.bp | 2 | 120.m | even | 2 | 1 | ||
| 800.6.a.k | 2 | 1.a | even | 1 | 1 | trivial | |
| 800.6.a.k | 2 | 4.b | odd | 2 | 1 | inner | |
| 800.6.c.d | 4 | 5.c | odd | 4 | 2 | ||
| 800.6.c.d | 4 | 20.e | even | 4 | 2 | ||
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{6}^{\mathrm{new}}(\Gamma_0(800))\):
|
\( T_{3}^{2} - 768 \)
|
|
\( T_{11}^{2} - 6912 \)
|
|
\( T_{13} - 42 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{2} \)
|
| $3$ |
\( T^{2} - 768 \)
|
| $5$ |
\( T^{2} \)
|
| $7$ |
\( T^{2} - 27648 \)
|
| $11$ |
\( T^{2} - 6912 \)
|
| $13$ |
\( (T - 42)^{2} \)
|
| $17$ |
\( (T + 962)^{2} \)
|
| $19$ |
\( T^{2} - 4320000 \)
|
| $23$ |
\( T^{2} - 9980928 \)
|
| $29$ |
\( (T + 2554)^{2} \)
|
| $31$ |
\( T^{2} - 3981312 \)
|
| $37$ |
\( (T + 11950)^{2} \)
|
| $41$ |
\( (T + 5078)^{2} \)
|
| $43$ |
\( T^{2} - 157600512 \)
|
| $47$ |
\( T^{2} - 151400448 \)
|
| $53$ |
\( (T - 19714)^{2} \)
|
| $59$ |
\( T^{2} - 79135488 \)
|
| $61$ |
\( (T - 29318)^{2} \)
|
| $67$ |
\( T^{2} - 284836608 \)
|
| $71$ |
\( T^{2} - 6557248512 \)
|
| $73$ |
\( (T + 37914)^{2} \)
|
| $79$ |
\( T^{2} - 7883993088 \)
|
| $83$ |
\( T^{2} - 1546414848 \)
|
| $89$ |
\( (T - 13930)^{2} \)
|
| $97$ |
\( (T + 163602)^{2} \)
|
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