Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [525,3,Mod(124,525)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(525, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([0, 3, 5]))
N = Newforms(chi, 3, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("525.124");
S:= CuspForms(chi, 3);
N := Newforms(S);
| Level: | \( N \) | \(=\) | \( 525 = 3 \cdot 5^{2} \cdot 7 \) |
| Weight: | \( k \) | \(=\) | \( 3 \) |
| Character orbit: | \([\chi]\) | \(=\) | 525.s (of order \(6\), degree \(2\), 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: | \(14.3052138789\) |
| Analytic rank: | \(0\) |
| Dimension: | \(4\) |
| Relative dimension: | \(2\) over \(\Q(\zeta_{6})\) |
| Coefficient field: | \(\Q(\zeta_{12})\) |
|
comment: defining polynomial
gp: f.mod \\ as an extension of the character field
|
|
| Defining polynomial: |
\( x^{4} - x^{2} + 1 \)
|
| Coefficient ring: | \(\Z[a_1, a_2]\) |
| Coefficient ring index: | \( 1 \) |
| Twist minimal: | yes |
| Sato-Tate group: | $\mathrm{SU}(2)[C_{6}]$ |
$q$-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 primitive root of unity \(\zeta_{12}\). We also show the integral \(q\)-expansion of the trace form.
Character values
We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/525\mathbb{Z}\right)^\times\).
| \(n\) | \(127\) | \(176\) | \(451\) |
| \(\chi(n)\) | \(-1\) | \(1\) | \(1 - \zeta_{12}^{2}\) |
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 | \(\iota_m(\nu)\) | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 124.1 |
|
−0.866025 | − | 0.500000i | −0.866025 | − | 1.50000i | −1.50000 | − | 2.59808i | 0 | 1.73205i | −4.33013 | + | 5.50000i | 7.00000i | −1.50000 | + | 2.59808i | 0 | ||||||||||||||||||||
| 124.2 | 0.866025 | + | 0.500000i | 0.866025 | + | 1.50000i | −1.50000 | − | 2.59808i | 0 | 1.73205i | 4.33013 | − | 5.50000i | − | 7.00000i | −1.50000 | + | 2.59808i | 0 | ||||||||||||||||||||
| 199.1 | −0.866025 | + | 0.500000i | −0.866025 | + | 1.50000i | −1.50000 | + | 2.59808i | 0 | − | 1.73205i | −4.33013 | − | 5.50000i | − | 7.00000i | −1.50000 | − | 2.59808i | 0 | |||||||||||||||||||
| 199.2 | 0.866025 | − | 0.500000i | 0.866025 | − | 1.50000i | −1.50000 | + | 2.59808i | 0 | − | 1.73205i | 4.33013 | + | 5.50000i | 7.00000i | −1.50000 | − | 2.59808i | 0 | ||||||||||||||||||||
Inner twists
| Char | Parity | Ord | Mult | Type |
|---|---|---|---|---|
| 1.a | even | 1 | 1 | trivial |
| 5.b | even | 2 | 1 | inner |
| 7.d | odd | 6 | 1 | inner |
| 35.i | odd | 6 | 1 | inner |
Twists
| By twisting character orbit | |||||||
|---|---|---|---|---|---|---|---|
| Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
| 1.a | even | 1 | 1 | trivial | 525.3.s.b | 4 | |
| 5.b | even | 2 | 1 | inner | 525.3.s.b | 4 | |
| 5.c | odd | 4 | 1 | 525.3.o.d | ✓ | 2 | |
| 5.c | odd | 4 | 1 | 525.3.o.e | yes | 2 | |
| 7.d | odd | 6 | 1 | inner | 525.3.s.b | 4 | |
| 35.i | odd | 6 | 1 | inner | 525.3.s.b | 4 | |
| 35.k | even | 12 | 1 | 525.3.o.d | ✓ | 2 | |
| 35.k | even | 12 | 1 | 525.3.o.e | yes | 2 | |
| By twisted newform orbit | |||||||
|---|---|---|---|---|---|---|---|
| Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
| 525.3.o.d | ✓ | 2 | 5.c | odd | 4 | 1 | |
| 525.3.o.d | ✓ | 2 | 35.k | even | 12 | 1 | |
| 525.3.o.e | yes | 2 | 5.c | odd | 4 | 1 | |
| 525.3.o.e | yes | 2 | 35.k | even | 12 | 1 | |
| 525.3.s.b | 4 | 1.a | even | 1 | 1 | trivial | |
| 525.3.s.b | 4 | 5.b | even | 2 | 1 | inner | |
| 525.3.s.b | 4 | 7.d | odd | 6 | 1 | inner | |
| 525.3.s.b | 4 | 35.i | odd | 6 | 1 | inner | |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(525, [\chi])\):
|
\( T_{2}^{4} - T_{2}^{2} + 1 \)
|
|
\( T_{11}^{2} + 4T_{11} + 16 \)
|
|
\( T_{13}^{2} - 300 \)
|
Hecke characteristic polynomials
| $p$ | $F_p(T)$ |
|---|---|
| $2$ |
\( T^{4} - T^{2} + 1 \)
|
| $3$ |
\( T^{4} + 3T^{2} + 9 \)
|
| $5$ |
\( T^{4} \)
|
| $7$ |
\( T^{4} + 23T^{2} + 2401 \)
|
| $11$ |
\( (T^{2} + 4 T + 16)^{2} \)
|
| $13$ |
\( (T^{2} - 300)^{2} \)
|
| $17$ |
\( T^{4} + 75T^{2} + 5625 \)
|
| $19$ |
\( (T^{2} + 12 T + 48)^{2} \)
|
| $23$ |
\( T^{4} - 961 T^{2} + 923521 \)
|
| $29$ |
\( (T + 10)^{4} \)
|
| $31$ |
\( (T^{2} - 51 T + 867)^{2} \)
|
| $37$ |
\( T^{4} - 2500 T^{2} + 6250000 \)
|
| $41$ |
\( (T^{2} + 2883)^{2} \)
|
| $43$ |
\( (T^{2} + 1156)^{2} \)
|
| $47$ |
\( T^{4} + 1875 T^{2} + 3515625 \)
|
| $53$ |
\( T^{4} - 2500 T^{2} + 6250000 \)
|
| $59$ |
\( (T^{2} - 96 T + 3072)^{2} \)
|
| $61$ |
\( (T^{2} - 42 T + 588)^{2} \)
|
| $67$ |
\( T^{4} - 2500 T^{2} + 6250000 \)
|
| $71$ |
\( (T - 97)^{4} \)
|
| $73$ |
\( T^{4} + 2352 T^{2} + 5531904 \)
|
| $79$ |
\( (T^{2} + 7 T + 49)^{2} \)
|
| $83$ |
\( (T^{2} - 23232)^{2} \)
|
| $89$ |
\( (T^{2} - 273 T + 24843)^{2} \)
|
| $97$ |
\( (T^{2} - 12675)^{2} \)
|
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