Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [882,2,Mod(37,882)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(882, base_ring=CyclotomicField(42))
chi = DirichletCharacter(H, H._module([0, 32]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("882.37");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 882 = 2 \cdot 3^{2} \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 882.z (of order \(21\), degree \(12\), 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: | \(7.04280545828\) |
Analytic rank: | \(0\) |
Dimension: | \(60\) |
Relative dimension: | \(5\) over \(\Q(\zeta_{21})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{21}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
37.1 | 0.826239 | − | 0.563320i | 0 | 0.365341 | − | 0.930874i | −2.46645 | − | 0.760798i | 0 | 1.96507 | − | 1.77158i | −0.222521 | − | 0.974928i | 0 | −2.46645 | + | 0.760798i | ||||||
37.2 | 0.826239 | − | 0.563320i | 0 | 0.365341 | − | 0.930874i | −1.42188 | − | 0.438591i | 0 | −2.62709 | + | 0.313696i | −0.222521 | − | 0.974928i | 0 | −1.42188 | + | 0.438591i | ||||||
37.3 | 0.826239 | − | 0.563320i | 0 | 0.365341 | − | 0.930874i | −0.563769 | − | 0.173900i | 0 | −0.146622 | + | 2.64169i | −0.222521 | − | 0.974928i | 0 | −0.563769 | + | 0.173900i | ||||||
37.4 | 0.826239 | − | 0.563320i | 0 | 0.365341 | − | 0.930874i | 2.57241 | + | 0.793483i | 0 | 1.29888 | + | 2.30497i | −0.222521 | − | 0.974928i | 0 | 2.57241 | − | 0.793483i | ||||||
37.5 | 0.826239 | − | 0.563320i | 0 | 0.365341 | − | 0.930874i | 3.64801 | + | 1.12526i | 0 | 0.465332 | − | 2.60451i | −0.222521 | − | 0.974928i | 0 | 3.64801 | − | 1.12526i | ||||||
109.1 | −0.733052 | + | 0.680173i | 0 | 0.0747301 | − | 0.997204i | −1.08013 | + | 2.75212i | 0 | 2.52768 | − | 0.781556i | 0.623490 | + | 0.781831i | 0 | −1.08013 | − | 2.75212i | ||||||
109.2 | −0.733052 | + | 0.680173i | 0 | 0.0747301 | − | 0.997204i | −0.455674 | + | 1.16104i | 0 | 1.96995 | − | 1.76616i | 0.623490 | + | 0.781831i | 0 | −0.455674 | − | 1.16104i | ||||||
109.3 | −0.733052 | + | 0.680173i | 0 | 0.0747301 | − | 0.997204i | −0.123680 | + | 0.315131i | 0 | −2.62269 | − | 0.348571i | 0.623490 | + | 0.781831i | 0 | −0.123680 | − | 0.315131i | ||||||
109.4 | −0.733052 | + | 0.680173i | 0 | 0.0747301 | − | 0.997204i | 0.253636 | − | 0.646253i | 0 | −0.581112 | + | 2.58114i | 0.623490 | + | 0.781831i | 0 | 0.253636 | + | 0.646253i | ||||||
109.5 | −0.733052 | + | 0.680173i | 0 | 0.0747301 | − | 0.997204i | 1.43831 | − | 3.66475i | 0 | −0.928485 | − | 2.47748i | 0.623490 | + | 0.781831i | 0 | 1.43831 | + | 3.66475i | ||||||
163.1 | 0.365341 | + | 0.930874i | 0 | −0.733052 | + | 0.680173i | −1.77049 | + | 1.20710i | 0 | 0.331365 | − | 2.62492i | −0.900969 | − | 0.433884i | 0 | −1.77049 | − | 1.20710i | ||||||
163.2 | 0.365341 | + | 0.930874i | 0 | −0.733052 | + | 0.680173i | −0.773406 | + | 0.527299i | 0 | 2.36057 | + | 1.19488i | −0.900969 | − | 0.433884i | 0 | −0.773406 | − | 0.527299i | ||||||
163.3 | 0.365341 | + | 0.930874i | 0 | −0.733052 | + | 0.680173i | 0.194435 | − | 0.132563i | 0 | −2.59859 | − | 0.497323i | −0.900969 | − | 0.433884i | 0 | 0.194435 | + | 0.132563i | ||||||
163.4 | 0.365341 | + | 0.930874i | 0 | −0.733052 | + | 0.680173i | 2.07899 | − | 1.41743i | 0 | 1.17308 | − | 2.37147i | −0.900969 | − | 0.433884i | 0 | 2.07899 | + | 1.41743i | ||||||
163.5 | 0.365341 | + | 0.930874i | 0 | −0.733052 | + | 0.680173i | 3.55697 | − | 2.42510i | 0 | −0.440185 | + | 2.60888i | −0.900969 | − | 0.433884i | 0 | 3.55697 | + | 2.42510i | ||||||
235.1 | −0.988831 | − | 0.149042i | 0 | 0.955573 | + | 0.294755i | −0.257415 | − | 3.43497i | 0 | −0.250764 | + | 2.63384i | −0.900969 | − | 0.433884i | 0 | −0.257415 | + | 3.43497i | ||||||
235.2 | −0.988831 | − | 0.149042i | 0 | 0.955573 | + | 0.294755i | −0.163784 | − | 2.18555i | 0 | 1.53324 | − | 2.15620i | −0.900969 | − | 0.433884i | 0 | −0.163784 | + | 2.18555i | ||||||
235.3 | −0.988831 | − | 0.149042i | 0 | 0.955573 | + | 0.294755i | 0.0935118 | + | 1.24783i | 0 | −2.64522 | − | 0.0531479i | −0.900969 | − | 0.433884i | 0 | 0.0935118 | − | 1.24783i | ||||||
235.4 | −0.988831 | − | 0.149042i | 0 | 0.955573 | + | 0.294755i | 0.126871 | + | 1.69298i | 0 | −1.20000 | + | 2.35797i | −0.900969 | − | 0.433884i | 0 | 0.126871 | − | 1.69298i | ||||||
235.5 | −0.988831 | − | 0.149042i | 0 | 0.955573 | + | 0.294755i | 0.295673 | + | 3.94548i | 0 | 2.63747 | + | 0.209149i | −0.900969 | − | 0.433884i | 0 | 0.295673 | − | 3.94548i | ||||||
See all 60 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
49.g | even | 21 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 882.2.z.h | yes | 60 |
3.b | odd | 2 | 1 | 882.2.z.g | ✓ | 60 | |
49.g | even | 21 | 1 | inner | 882.2.z.h | yes | 60 |
147.n | odd | 42 | 1 | 882.2.z.g | ✓ | 60 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
882.2.z.g | ✓ | 60 | 3.b | odd | 2 | 1 | |
882.2.z.g | ✓ | 60 | 147.n | odd | 42 | 1 | |
882.2.z.h | yes | 60 | 1.a | even | 1 | 1 | trivial |
882.2.z.h | yes | 60 | 49.g | even | 21 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{60} - 3 T_{5}^{59} - 11 T_{5}^{58} + 88 T_{5}^{57} - 105 T_{5}^{56} - 127 T_{5}^{55} + \cdots + 40\!\cdots\!49 \) acting on \(S_{2}^{\mathrm{new}}(882, [\chi])\).