Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [2240,4,Mod(1,2240)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(2240, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("2240.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 2240 = 2^{6} \cdot 5 \cdot 7 \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 2240.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: | \(132.164278413\) |
| Analytic rank: | \(1\) |
| Dimension: | \(3\) |
| Coefficient field: | 3.3.14360.1 |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{3} - 17x - 14 \)
|
| Coefficient ring: | \(\Z[a_1, \ldots, a_{11}]\) |
| Coefficient ring index: | \( 2^{2} \) |
| Twist minimal: | no (minimal twist has level 35) |
| 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 \(1,\beta_1,\beta_2\) 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
\( x^{3} - 17x - 14 \)
:
| \(\beta_{1}\) | \(=\) |
\( \nu^{2} + 2\nu - 11 \)
|
| \(\beta_{2}\) | \(=\) |
\( \nu^{2} - 2\nu - 11 \)
|
| \(\nu\) | \(=\) |
\( ( -\beta_{2} + \beta_1 ) / 4 \)
|
| \(\nu^{2}\) | \(=\) |
\( ( \beta_{2} + \beta _1 + 22 ) / 2 \)
|
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 | −9.53636 | 0 | −5.00000 | 0 | 7.00000 | 0 | 63.9421 | 0 | |||||||||||||||||||||||||||
| 1.2 | 0 | −0.850238 | 0 | −5.00000 | 0 | 7.00000 | 0 | −26.2771 | 0 | ||||||||||||||||||||||||||||
| 1.3 | 0 | 8.38660 | 0 | −5.00000 | 0 | 7.00000 | 0 | 43.3350 | 0 | ||||||||||||||||||||||||||||
Atkin-Lehner signs
| \( p \) | Sign |
|---|---|
| \(2\) | \(1\) |
| \(5\) | \(1\) |
| \(7\) | \(-1\) |
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 | 2240.4.a.bt | 3 | |
| 4.b | odd | 2 | 1 | 2240.4.a.bv | 3 | ||
| 8.b | even | 2 | 1 | 35.4.a.c | ✓ | 3 | |
| 8.d | odd | 2 | 1 | 560.4.a.u | 3 | ||
| 24.h | odd | 2 | 1 | 315.4.a.p | 3 | ||
| 40.f | even | 2 | 1 | 175.4.a.f | 3 | ||
| 40.i | odd | 4 | 2 | 175.4.b.e | 6 | ||
| 56.h | odd | 2 | 1 | 245.4.a.l | 3 | ||
| 56.j | odd | 6 | 2 | 245.4.e.n | 6 | ||
| 56.p | even | 6 | 2 | 245.4.e.m | 6 | ||
| 120.i | odd | 2 | 1 | 1575.4.a.ba | 3 | ||
| 168.i | even | 2 | 1 | 2205.4.a.bm | 3 | ||
| 280.c | odd | 2 | 1 | 1225.4.a.y | 3 | ||
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 35.4.a.c | ✓ | 3 | 8.b | even | 2 | 1 | |
| 175.4.a.f | 3 | 40.f | even | 2 | 1 | ||
| 175.4.b.e | 6 | 40.i | odd | 4 | 2 | ||
| 245.4.a.l | 3 | 56.h | odd | 2 | 1 | ||
| 245.4.e.m | 6 | 56.p | even | 6 | 2 | ||
| 245.4.e.n | 6 | 56.j | odd | 6 | 2 | ||
| 315.4.a.p | 3 | 24.h | odd | 2 | 1 | ||
| 560.4.a.u | 3 | 8.d | odd | 2 | 1 | ||
| 1225.4.a.y | 3 | 280.c | odd | 2 | 1 | ||
| 1575.4.a.ba | 3 | 120.i | odd | 2 | 1 | ||
| 2205.4.a.bm | 3 | 168.i | even | 2 | 1 | ||
| 2240.4.a.bt | 3 | 1.a | even | 1 | 1 | trivial | |
| 2240.4.a.bv | 3 | 4.b | odd | 2 | 1 | ||
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(2240))\):
|
\( T_{3}^{3} + 2T_{3}^{2} - 79T_{3} - 68 \)
|
|
\( T_{11}^{3} - 74T_{11}^{2} + 1577T_{11} - 7692 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{3} \)
|
| $3$ |
\( T^{3} + 2 T^{2} + \cdots - 68 \)
|
| $5$ |
\( (T + 5)^{3} \)
|
| $7$ |
\( (T - 7)^{3} \)
|
| $11$ |
\( T^{3} - 74 T^{2} + \cdots - 7692 \)
|
| $13$ |
\( T^{3} + 44 T^{2} + \cdots + 44870 \)
|
| $17$ |
\( T^{3} + 52 T^{2} + \cdots - 56706 \)
|
| $19$ |
\( T^{3} + 168 T^{2} + \cdots + 28720 \)
|
| $23$ |
\( T^{3} + 124 T^{2} + \cdots - 94368 \)
|
| $29$ |
\( T^{3} + 332 T^{2} + \cdots - 2565450 \)
|
| $31$ |
\( T^{3} - 320 T^{2} + \cdots + 50176 \)
|
| $37$ |
\( T^{3} - 54 T^{2} + \cdots - 25736 \)
|
| $41$ |
\( T^{3} - 362 T^{2} + \cdots - 1536192 \)
|
| $43$ |
\( T^{3} - 16 T^{2} + \cdots + 1524560 \)
|
| $47$ |
\( T^{3} + 730 T^{2} + \cdots + 4968912 \)
|
| $53$ |
\( T^{3} + 110 T^{2} + \cdots - 90318336 \)
|
| $59$ |
\( T^{3} - 180 T^{2} + \cdots + 202459200 \)
|
| $61$ |
\( T^{3} + 1222 T^{2} + \cdots + 38393792 \)
|
| $67$ |
\( T^{3} + 204 T^{2} + \cdots - 324944128 \)
|
| $71$ |
\( T^{3} + 136 T^{2} + \cdots + 15575040 \)
|
| $73$ |
\( T^{3} - 310 T^{2} + \cdots + 48718616 \)
|
| $79$ |
\( T^{3} + 1034 T^{2} + \cdots - 343615600 \)
|
| $83$ |
\( T^{3} - 1660 T^{2} + \cdots + 42727104 \)
|
| $89$ |
\( T^{3} - 242 T^{2} + \cdots - 6359520 \)
|
| $97$ |
\( T^{3} - 100 T^{2} + \cdots - 1978018 \)
|
| show more | |
| show less |