Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [490,2,Mod(11,490)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(490, base_ring=CyclotomicField(42))
chi = DirichletCharacter(H, H._module([0, 40]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("490.11");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 490 = 2 \cdot 5 \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 490.q (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: | \(3.91266969904\) |
Analytic rank: | \(0\) |
Dimension: | \(48\) |
Relative dimension: | \(4\) 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
11.1 | −0.733052 | + | 0.680173i | −2.29227 | + | 0.345504i | 0.0747301 | − | 0.997204i | 0.365341 | − | 0.930874i | 1.44535 | − | 1.81241i | −0.725784 | + | 2.54426i | 0.623490 | + | 0.781831i | 2.26839 | − | 0.699706i | 0.365341 | + | 0.930874i |
11.2 | −0.733052 | + | 0.680173i | −0.0534245 | + | 0.00805244i | 0.0747301 | − | 0.997204i | 0.365341 | − | 0.930874i | 0.0336859 | − | 0.0422407i | 1.67757 | + | 2.04592i | 0.623490 | + | 0.781831i | −2.86393 | + | 0.883405i | 0.365341 | + | 0.930874i |
11.3 | −0.733052 | + | 0.680173i | 0.691235 | − | 0.104187i | 0.0747301 | − | 0.997204i | 0.365341 | − | 0.930874i | −0.435846 | + | 0.546533i | −2.40567 | + | 1.10126i | 0.623490 | + | 0.781831i | −2.39977 | + | 0.740230i | 0.365341 | + | 0.930874i |
11.4 | −0.733052 | + | 0.680173i | 2.37698 | − | 0.358272i | 0.0747301 | − | 0.997204i | 0.365341 | − | 0.930874i | −1.49876 | + | 1.87939i | −0.126847 | − | 2.64271i | 0.623490 | + | 0.781831i | 2.65494 | − | 0.818941i | 0.365341 | + | 0.930874i |
51.1 | 0.955573 | + | 0.294755i | −0.740318 | + | 1.88630i | 0.826239 | + | 0.563320i | −0.988831 | + | 0.149042i | −1.26342 | + | 1.58428i | −1.10690 | + | 2.40307i | 0.623490 | + | 0.781831i | −0.810896 | − | 0.752402i | −0.988831 | − | 0.149042i |
51.2 | 0.955573 | + | 0.294755i | −0.0866614 | + | 0.220810i | 0.826239 | + | 0.563320i | −0.988831 | + | 0.149042i | −0.147896 | + | 0.185456i | −2.38414 | + | 1.14711i | 0.623490 | + | 0.781831i | 2.15791 | + | 2.00225i | −0.988831 | − | 0.149042i |
51.3 | 0.955573 | + | 0.294755i | 0.421999 | − | 1.07524i | 0.826239 | + | 0.563320i | −0.988831 | + | 0.149042i | 0.720182 | − | 0.903079i | 2.55840 | + | 0.674216i | 0.623490 | + | 0.781831i | 1.22111 | + | 1.13302i | −0.988831 | − | 0.149042i |
51.4 | 0.955573 | + | 0.294755i | 1.12750 | − | 2.87283i | 0.826239 | + | 0.563320i | −0.988831 | + | 0.149042i | 1.92419 | − | 2.41286i | −1.21399 | − | 2.35079i | 0.623490 | + | 0.781831i | −4.78272 | − | 4.43771i | −0.988831 | − | 0.149042i |
81.1 | 0.0747301 | + | 0.997204i | −1.63896 | − | 0.505551i | −0.988831 | + | 0.149042i | −0.733052 | + | 0.680173i | 0.381658 | − | 1.67215i | 2.60740 | − | 0.448823i | −0.222521 | − | 0.974928i | −0.0481202 | − | 0.0328078i | −0.733052 | − | 0.680173i |
81.2 | 0.0747301 | + | 0.997204i | −0.0437759 | − | 0.0135031i | −0.988831 | + | 0.149042i | −0.733052 | + | 0.680173i | 0.0101939 | − | 0.0446626i | −0.958059 | − | 2.46620i | −0.222521 | − | 0.974928i | −2.47698 | − | 1.68878i | −0.733052 | − | 0.680173i |
81.3 | 0.0747301 | + | 0.997204i | 0.496222 | + | 0.153064i | −0.988831 | + | 0.149042i | −0.733052 | + | 0.680173i | −0.115554 | + | 0.506273i | −0.898856 | + | 2.48838i | −0.222521 | − | 0.974928i | −2.25591 | − | 1.53805i | −0.733052 | − | 0.680173i |
81.4 | 0.0747301 | + | 0.997204i | 2.58748 | + | 0.798132i | −0.988831 | + | 0.149042i | −0.733052 | + | 0.680173i | −0.602537 | + | 2.63989i | 2.51325 | − | 0.826772i | −0.222521 | − | 0.974928i | 3.57932 | + | 2.44034i | −0.733052 | − | 0.680173i |
121.1 | 0.0747301 | − | 0.997204i | −1.63896 | + | 0.505551i | −0.988831 | − | 0.149042i | −0.733052 | − | 0.680173i | 0.381658 | + | 1.67215i | 2.60740 | + | 0.448823i | −0.222521 | + | 0.974928i | −0.0481202 | + | 0.0328078i | −0.733052 | + | 0.680173i |
121.2 | 0.0747301 | − | 0.997204i | −0.0437759 | + | 0.0135031i | −0.988831 | − | 0.149042i | −0.733052 | − | 0.680173i | 0.0101939 | + | 0.0446626i | −0.958059 | + | 2.46620i | −0.222521 | + | 0.974928i | −2.47698 | + | 1.68878i | −0.733052 | + | 0.680173i |
121.3 | 0.0747301 | − | 0.997204i | 0.496222 | − | 0.153064i | −0.988831 | − | 0.149042i | −0.733052 | − | 0.680173i | −0.115554 | − | 0.506273i | −0.898856 | − | 2.48838i | −0.222521 | + | 0.974928i | −2.25591 | + | 1.53805i | −0.733052 | + | 0.680173i |
121.4 | 0.0747301 | − | 0.997204i | 2.58748 | − | 0.798132i | −0.988831 | − | 0.149042i | −0.733052 | − | 0.680173i | −0.602537 | − | 2.63989i | 2.51325 | + | 0.826772i | −0.222521 | + | 0.974928i | 3.57932 | − | 2.44034i | −0.733052 | + | 0.680173i |
151.1 | 0.826239 | + | 0.563320i | −1.26371 | − | 1.17255i | 0.365341 | + | 0.930874i | 0.955573 | − | 0.294755i | −0.383603 | − | 1.68068i | −2.63600 | − | 0.226895i | −0.222521 | + | 0.974928i | −0.00210584 | − | 0.0281004i | 0.955573 | + | 0.294755i |
151.2 | 0.826239 | + | 0.563320i | −0.314462 | − | 0.291778i | 0.365341 | + | 0.930874i | 0.955573 | − | 0.294755i | −0.0954562 | − | 0.418221i | 2.31837 | − | 1.27482i | −0.222521 | + | 0.974928i | −0.210438 | − | 2.80811i | 0.955573 | + | 0.294755i |
151.3 | 0.826239 | + | 0.563320i | 1.07663 | + | 0.998970i | 0.365341 | + | 0.930874i | 0.955573 | − | 0.294755i | 0.326816 | + | 1.43188i | −0.896339 | + | 2.48929i | −0.222521 | + | 0.974928i | −0.0629915 | − | 0.840563i | 0.955573 | + | 0.294755i |
151.4 | 0.826239 | + | 0.563320i | 1.90250 | + | 1.76527i | 0.365341 | + | 0.930874i | 0.955573 | − | 0.294755i | 0.577513 | + | 2.53025i | 1.16671 | − | 2.37461i | −0.222521 | + | 0.974928i | 0.279168 | + | 3.72524i | 0.955573 | + | 0.294755i |
See all 48 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 | 490.2.q.a | ✓ | 48 |
49.g | even | 21 | 1 | inner | 490.2.q.a | ✓ | 48 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
490.2.q.a | ✓ | 48 | 1.a | even | 1 | 1 | trivial |
490.2.q.a | ✓ | 48 | 49.g | even | 21 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{48} - 8 T_{3}^{47} + 34 T_{3}^{46} - 90 T_{3}^{45} + 109 T_{3}^{44} + 179 T_{3}^{43} - 1148 T_{3}^{42} + \cdots + 49 \) acting on \(S_{2}^{\mathrm{new}}(490, [\chi])\).