Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [315,2,Mod(236,315)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(315, base_ring=CyclotomicField(6))
chi = DirichletCharacter(H, H._module([1, 0, 5]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("315.236");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 315 = 3^{2} \cdot 5 \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 315.be (of order \(6\), degree \(2\), 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: | \(2.51528766367\) |
Analytic rank: | \(0\) |
Dimension: | \(30\) |
Relative dimension: | \(15\) over \(\Q(\zeta_{6})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{6}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
236.1 | −2.43144 | + | 1.40379i | −1.45528 | − | 0.939239i | 2.94126 | − | 5.09441i | 1.00000 | 4.85691 | + | 0.240797i | 0.979355 | − | 2.45782i | 10.9005i | 1.23566 | + | 2.73371i | −2.43144 | + | 1.40379i | ||||
236.2 | −2.02825 | + | 1.17101i | 0.587320 | + | 1.62943i | 1.74252 | − | 3.01813i | 1.00000 | −3.09931 | − | 2.61714i | 2.45764 | + | 0.979787i | 3.47799i | −2.31011 | + | 1.91400i | −2.02825 | + | 1.17101i | ||||
236.3 | −1.57665 | + | 0.910280i | −0.582275 | − | 1.63124i | 0.657218 | − | 1.13833i | 1.00000 | 2.40293 | + | 2.04187i | −0.602558 | + | 2.57622i | − | 1.24811i | −2.32191 | + | 1.89966i | −1.57665 | + | 0.910280i | |||
236.4 | −1.16645 | + | 0.673451i | −1.58477 | + | 0.698930i | −0.0929278 | + | 0.160956i | 1.00000 | 1.37786 | − | 1.88253i | 0.696317 | − | 2.55248i | − | 2.94413i | 2.02299 | − | 2.21529i | −1.16645 | + | 0.673451i | |||
236.5 | −1.16637 | + | 0.673405i | 1.48755 | − | 0.887234i | −0.0930506 | + | 0.161168i | 1.00000 | −1.13757 | + | 2.03657i | 2.59059 | − | 0.537423i | − | 2.94426i | 1.42563 | − | 2.63962i | −1.16637 | + | 0.673405i | |||
236.6 | −0.804799 | + | 0.464651i | 1.68100 | + | 0.417423i | −0.568200 | + | 0.984151i | 1.00000 | −1.54682 | + | 0.445136i | −2.32336 | + | 1.26570i | − | 2.91466i | 2.65152 | + | 1.40338i | −0.804799 | + | 0.464651i | |||
236.7 | −0.0228655 | + | 0.0132014i | −0.396980 | − | 1.68594i | −0.999651 | + | 1.73145i | 1.00000 | 0.0313339 | + | 0.0333092i | −1.43459 | − | 2.22305i | − | 0.105593i | −2.68481 | + | 1.33857i | −0.0228655 | + | 0.0132014i | |||
236.8 | 0.441540 | − | 0.254923i | 1.05462 | − | 1.37396i | −0.870028 | + | 1.50693i | 1.00000 | 0.115404 | − | 0.875506i | 2.05349 | + | 1.66829i | 1.90685i | −0.775539 | − | 2.89802i | 0.441540 | − | 0.254923i | ||||
236.9 | 0.600029 | − | 0.346427i | −0.431152 | + | 1.67753i | −0.759977 | + | 1.31632i | 1.00000 | 0.322438 | + | 1.15593i | 2.55145 | − | 0.700092i | 2.43881i | −2.62822 | − | 1.44654i | 0.600029 | − | 0.346427i | ||||
236.10 | 0.794909 | − | 0.458941i | −1.63482 | − | 0.572153i | −0.578746 | + | 1.00242i | 1.00000 | −1.56212 | + | 0.295477i | −2.55889 | + | 0.672387i | 2.89821i | 2.34528 | + | 1.87074i | 0.794909 | − | 0.458941i | ||||
236.11 | 1.07014 | − | 0.617846i | 1.67621 | + | 0.436249i | −0.236533 | + | 0.409687i | 1.00000 | 2.06332 | − | 0.568792i | −0.432012 | − | 2.61024i | 3.05595i | 2.61937 | + | 1.46249i | 1.07014 | − | 0.617846i | ||||
236.12 | 1.52284 | − | 0.879212i | 0.575251 | + | 1.63373i | 0.546028 | − | 0.945749i | 1.00000 | 2.31241 | + | 1.98215i | −1.21730 | + | 2.34908i | 1.59655i | −2.33817 | + | 1.87962i | 1.52284 | − | 0.879212i | ||||
236.13 | 1.87276 | − | 1.08124i | 0.865496 | − | 1.50031i | 1.33817 | − | 2.31777i | 1.00000 | −0.00132154 | − | 3.74553i | −1.75124 | + | 1.98322i | − | 1.46255i | −1.50183 | − | 2.59702i | 1.87276 | − | 1.08124i | |||
236.14 | 2.03201 | − | 1.17318i | −0.909209 | − | 1.47423i | 1.75271 | − | 3.03578i | 1.00000 | −3.57705 | − | 1.92897i | 0.498797 | − | 2.59831i | − | 3.53226i | −1.34668 | + | 2.68076i | 2.03201 | − | 1.17318i | |||
236.15 | 2.36259 | − | 1.36404i | −1.43297 | + | 0.972928i | 2.72121 | − | 4.71328i | 1.00000 | −2.05841 | + | 4.25326i | 1.49231 | + | 2.18472i | − | 9.39122i | 1.10682 | − | 2.78836i | 2.36259 | − | 1.36404i | |||
311.1 | −2.43144 | − | 1.40379i | −1.45528 | + | 0.939239i | 2.94126 | + | 5.09441i | 1.00000 | 4.85691 | − | 0.240797i | 0.979355 | + | 2.45782i | − | 10.9005i | 1.23566 | − | 2.73371i | −2.43144 | − | 1.40379i | |||
311.2 | −2.02825 | − | 1.17101i | 0.587320 | − | 1.62943i | 1.74252 | + | 3.01813i | 1.00000 | −3.09931 | + | 2.61714i | 2.45764 | − | 0.979787i | − | 3.47799i | −2.31011 | − | 1.91400i | −2.02825 | − | 1.17101i | |||
311.3 | −1.57665 | − | 0.910280i | −0.582275 | + | 1.63124i | 0.657218 | + | 1.13833i | 1.00000 | 2.40293 | − | 2.04187i | −0.602558 | − | 2.57622i | 1.24811i | −2.32191 | − | 1.89966i | −1.57665 | − | 0.910280i | ||||
311.4 | −1.16645 | − | 0.673451i | −1.58477 | − | 0.698930i | −0.0929278 | − | 0.160956i | 1.00000 | 1.37786 | + | 1.88253i | 0.696317 | + | 2.55248i | 2.94413i | 2.02299 | + | 2.21529i | −1.16645 | − | 0.673451i | ||||
311.5 | −1.16637 | − | 0.673405i | 1.48755 | + | 0.887234i | −0.0930506 | − | 0.161168i | 1.00000 | −1.13757 | − | 2.03657i | 2.59059 | + | 0.537423i | 2.94426i | 1.42563 | + | 2.63962i | −1.16637 | − | 0.673405i | ||||
See all 30 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
63.s | even | 6 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 315.2.be.b | yes | 30 |
3.b | odd | 2 | 1 | 945.2.be.b | 30 | ||
7.d | odd | 6 | 1 | 315.2.t.b | ✓ | 30 | |
9.c | even | 3 | 1 | 945.2.t.b | 30 | ||
9.d | odd | 6 | 1 | 315.2.t.b | ✓ | 30 | |
21.g | even | 6 | 1 | 945.2.t.b | 30 | ||
63.k | odd | 6 | 1 | 945.2.be.b | 30 | ||
63.s | even | 6 | 1 | inner | 315.2.be.b | yes | 30 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
315.2.t.b | ✓ | 30 | 7.d | odd | 6 | 1 | |
315.2.t.b | ✓ | 30 | 9.d | odd | 6 | 1 | |
315.2.be.b | yes | 30 | 1.a | even | 1 | 1 | trivial |
315.2.be.b | yes | 30 | 63.s | even | 6 | 1 | inner |
945.2.t.b | 30 | 9.c | even | 3 | 1 | ||
945.2.t.b | 30 | 21.g | even | 6 | 1 | ||
945.2.be.b | 30 | 3.b | odd | 2 | 1 | ||
945.2.be.b | 30 | 63.k | odd | 6 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{30} - 3 T_{2}^{29} - 18 T_{2}^{28} + 63 T_{2}^{27} + 213 T_{2}^{26} - 828 T_{2}^{25} - 1417 T_{2}^{24} + \cdots + 27 \) acting on \(S_{2}^{\mathrm{new}}(315, [\chi])\).