Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [1503,2,Mod(1,1503)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(1503, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("1503.1");
S:= CuspForms(chi, 2);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 1503 = 3^{2} \cdot 167 \) |
| Weight: | \( k \) | \(=\) | \( 2 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1503.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: | \(12.0015154238\) |
| Analytic rank: | \(1\) |
| Dimension: | \(5\) |
| Coefficient field: | 5.5.38569.1 |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{5} - 5x^{3} + 4x - 1 \)
|
| Coefficient ring: | \(\Z[a_1, a_2]\) |
| Coefficient ring index: | \( 1 \) |
| Twist minimal: | no (minimal twist has level 501) |
| 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 a basis \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.
Basis of coefficient ring in terms of a root \(\nu\) of
\( x^{5} - 5x^{3} + 4x - 1 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu \)
|
| \(\beta_{2}\) | \(=\) |
\( \nu^{4} - 4\nu^{2} + 1 \)
|
| \(\beta_{3}\) | \(=\) |
\( -\nu^{4} + 5\nu^{2} - 3 \)
|
| \(\beta_{4}\) | \(=\) |
\( \nu^{4} + \nu^{3} - 5\nu^{2} - 4\nu + 3 \)
|
| \(\nu\) | \(=\) |
\( \beta_1 \)
|
| \(\nu^{2}\) | \(=\) |
\( \beta_{3} + \beta_{2} + 2 \)
|
| \(\nu^{3}\) | \(=\) |
\( \beta_{4} + \beta_{3} + 4\beta_1 \)
|
| \(\nu^{4}\) | \(=\) |
\( 4\beta_{3} + 5\beta_{2} + 7 \)
|
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 |
|
−1.95408 | 0 | 1.81843 | 3.11102 | 0 | −1.66149 | 0.354808 | 0 | −6.07918 | |||||||||||||||||||||||||||||||||
| 1.2 | −1.15098 | 0 | −0.675235 | −0.0593478 | 0 | −1.53510 | 3.07915 | 0 | 0.0683084 | ||||||||||||||||||||||||||||||||||
| 1.3 | 0.275834 | 0 | −1.92392 | −1.81885 | 0 | −0.619101 | −1.08235 | 0 | −0.501701 | ||||||||||||||||||||||||||||||||||
| 1.4 | 0.790734 | 0 | −1.37474 | 1.61314 | 0 | 2.77861 | −2.66852 | 0 | 1.27557 | ||||||||||||||||||||||||||||||||||
| 1.5 | 2.03850 | 0 | 2.15546 | −1.84596 | 0 | −2.96293 | 0.316911 | 0 | −3.76299 | ||||||||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(3\) | \(-1\) |
| \(167\) | \(-1\) |
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 | 1503.2.a.c | 5 | |
| 3.b | odd | 2 | 1 | 501.2.a.c | ✓ | 5 | |
| 12.b | even | 2 | 1 | 8016.2.a.u | 5 | ||
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 501.2.a.c | ✓ | 5 | 3.b | odd | 2 | 1 | |
| 1503.2.a.c | 5 | 1.a | even | 1 | 1 | trivial | |
| 8016.2.a.u | 5 | 12.b | even | 2 | 1 | ||
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator
\( T_{2}^{5} - 5T_{2}^{3} + 4T_{2} - 1 \)
acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(1503))\).
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{5} - 5 T^{3} + \cdots - 1 \)
|
| $3$ |
\( T^{5} \)
|
| $5$ |
\( T^{5} - T^{4} - 9 T^{3} + \cdots + 1 \)
|
| $7$ |
\( T^{5} + 4 T^{4} + \cdots - 13 \)
|
| $11$ |
\( T^{5} - 7 T^{4} + \cdots - 121 \)
|
| $13$ |
\( T^{5} + 8 T^{4} + \cdots + 17 \)
|
| $17$ |
\( T^{5} + 5 T^{4} + \cdots + 293 \)
|
| $19$ |
\( T^{5} + 20 T^{4} + \cdots + 599 \)
|
| $23$ |
\( T^{5} + T^{4} + \cdots - 1793 \)
|
| $29$ |
\( T^{5} - 5 T^{4} + \cdots - 4001 \)
|
| $31$ |
\( T^{5} + 18 T^{4} + \cdots + 181 \)
|
| $37$ |
\( T^{5} + 17 T^{4} + \cdots - 13913 \)
|
| $41$ |
\( T^{5} + 6 T^{4} + \cdots - 1 \)
|
| $43$ |
\( T^{5} + 10 T^{4} + \cdots + 4159 \)
|
| $47$ |
\( T^{5} - 3 T^{4} + \cdots - 547 \)
|
| $53$ |
\( T^{5} + 15 T^{4} + \cdots - 707 \)
|
| $59$ |
\( T^{5} - 17 T^{4} + \cdots + 5737 \)
|
| $61$ |
\( T^{5} + 2 T^{4} + \cdots - 8609 \)
|
| $67$ |
\( T^{5} + 24 T^{4} + \cdots + 23449 \)
|
| $71$ |
\( T^{5} + T^{4} + \cdots + 28039 \)
|
| $73$ |
\( T^{5} - 2 T^{4} + \cdots + 8743 \)
|
| $79$ |
\( T^{5} + 6 T^{4} + \cdots + 31489 \)
|
| $83$ |
\( T^{5} - 7 T^{4} + \cdots + 7703 \)
|
| $89$ |
\( T^{5} - 155 T^{3} + \cdots - 17071 \)
|
| $97$ |
\( T^{5} + 13 T^{4} + \cdots - 869 \)
|
| show more | |
| show less |