Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [930,2,Mod(121,930)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(930, base_ring=CyclotomicField(30))
chi = DirichletCharacter(H, H._module([0, 0, 16]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("930.121");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 930 = 2 \cdot 3 \cdot 5 \cdot 31 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 930.bg (of order \(15\), degree \(8\), 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: | \(7.42608738798\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(3\) over \(\Q(\zeta_{15})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{15}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
121.1 | 0.809017 | − | 0.587785i | 0.104528 | − | 0.994522i | 0.309017 | − | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | −4.34565 | + | 0.923697i | −0.309017 | − | 0.951057i | −0.978148 | − | 0.207912i | 0.104528 | + | 0.994522i |
121.2 | 0.809017 | − | 0.587785i | 0.104528 | − | 0.994522i | 0.309017 | − | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 0.105382 | − | 0.0223997i | −0.309017 | − | 0.951057i | −0.978148 | − | 0.207912i | 0.104528 | + | 0.994522i |
121.3 | 0.809017 | − | 0.587785i | 0.104528 | − | 0.994522i | 0.309017 | − | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 0.744050 | − | 0.158153i | −0.309017 | − | 0.951057i | −0.978148 | − | 0.207912i | 0.104528 | + | 0.994522i |
361.1 | −0.309017 | − | 0.951057i | −0.669131 | − | 0.743145i | −0.809017 | + | 0.587785i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | −0.220951 | − | 2.10221i | 0.809017 | + | 0.587785i | −0.104528 | + | 0.994522i | −0.669131 | + | 0.743145i |
361.2 | −0.309017 | − | 0.951057i | −0.669131 | − | 0.743145i | −0.809017 | + | 0.587785i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 0.0963276 | + | 0.916496i | 0.809017 | + | 0.587785i | −0.104528 | + | 0.994522i | −0.669131 | + | 0.743145i |
361.3 | −0.309017 | − | 0.951057i | −0.669131 | − | 0.743145i | −0.809017 | + | 0.587785i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 0.167373 | + | 1.59245i | 0.809017 | + | 0.587785i | −0.104528 | + | 0.994522i | −0.669131 | + | 0.743145i |
391.1 | 0.809017 | + | 0.587785i | −0.913545 | − | 0.406737i | 0.309017 | + | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | −2.71613 | + | 3.01657i | −0.309017 | + | 0.951057i | 0.669131 | + | 0.743145i | −0.913545 | + | 0.406737i |
391.2 | 0.809017 | + | 0.587785i | −0.913545 | − | 0.406737i | 0.309017 | + | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 0.334019 | − | 0.370966i | −0.309017 | + | 0.951057i | 0.669131 | + | 0.743145i | −0.913545 | + | 0.406737i |
391.3 | 0.809017 | + | 0.587785i | −0.913545 | − | 0.406737i | 0.309017 | + | 0.951057i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 2.56932 | − | 2.85352i | −0.309017 | + | 0.951057i | 0.669131 | + | 0.743145i | −0.913545 | + | 0.406737i |
421.1 | 0.809017 | − | 0.587785i | −0.913545 | + | 0.406737i | 0.309017 | − | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | −2.71613 | − | 3.01657i | −0.309017 | − | 0.951057i | 0.669131 | − | 0.743145i | −0.913545 | − | 0.406737i |
421.2 | 0.809017 | − | 0.587785i | −0.913545 | + | 0.406737i | 0.309017 | − | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 0.334019 | + | 0.370966i | −0.309017 | − | 0.951057i | 0.669131 | − | 0.743145i | −0.913545 | − | 0.406737i |
421.3 | 0.809017 | − | 0.587785i | −0.913545 | + | 0.406737i | 0.309017 | − | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 2.56932 | + | 2.85352i | −0.309017 | − | 0.951057i | 0.669131 | − | 0.743145i | −0.913545 | − | 0.406737i |
541.1 | −0.309017 | + | 0.951057i | −0.669131 | + | 0.743145i | −0.809017 | − | 0.587785i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | −0.220951 | + | 2.10221i | 0.809017 | − | 0.587785i | −0.104528 | − | 0.994522i | −0.669131 | − | 0.743145i |
541.2 | −0.309017 | + | 0.951057i | −0.669131 | + | 0.743145i | −0.809017 | − | 0.587785i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 0.0963276 | − | 0.916496i | 0.809017 | − | 0.587785i | −0.104528 | − | 0.994522i | −0.669131 | − | 0.743145i |
541.3 | −0.309017 | + | 0.951057i | −0.669131 | + | 0.743145i | −0.809017 | − | 0.587785i | −0.500000 | + | 0.866025i | −0.500000 | − | 0.866025i | 0.167373 | − | 1.59245i | 0.809017 | − | 0.587785i | −0.104528 | − | 0.994522i | −0.669131 | − | 0.743145i |
661.1 | 0.809017 | + | 0.587785i | 0.104528 | + | 0.994522i | 0.309017 | + | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | −4.34565 | − | 0.923697i | −0.309017 | + | 0.951057i | −0.978148 | + | 0.207912i | 0.104528 | − | 0.994522i |
661.2 | 0.809017 | + | 0.587785i | 0.104528 | + | 0.994522i | 0.309017 | + | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 0.105382 | + | 0.0223997i | −0.309017 | + | 0.951057i | −0.978148 | + | 0.207912i | 0.104528 | − | 0.994522i |
661.3 | 0.809017 | + | 0.587785i | 0.104528 | + | 0.994522i | 0.309017 | + | 0.951057i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | 0.744050 | + | 0.158153i | −0.309017 | + | 0.951057i | −0.978148 | + | 0.207912i | 0.104528 | − | 0.994522i |
691.1 | −0.309017 | + | 0.951057i | 0.978148 | + | 0.207912i | −0.809017 | − | 0.587785i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | −2.37522 | + | 1.05752i | 0.809017 | − | 0.587785i | 0.913545 | + | 0.406737i | 0.978148 | − | 0.207912i |
691.2 | −0.309017 | + | 0.951057i | 0.978148 | + | 0.207912i | −0.809017 | − | 0.587785i | −0.500000 | − | 0.866025i | −0.500000 | + | 0.866025i | −2.21753 | + | 0.987309i | 0.809017 | − | 0.587785i | 0.913545 | + | 0.406737i | 0.978148 | − | 0.207912i |
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
31.g | even | 15 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 930.2.bg.h | ✓ | 24 |
31.g | even | 15 | 1 | inner | 930.2.bg.h | ✓ | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
930.2.bg.h | ✓ | 24 | 1.a | even | 1 | 1 | trivial |
930.2.bg.h | ✓ | 24 | 31.g | even | 15 | 1 | inner |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{24} + 11 T_{7}^{23} + 40 T_{7}^{22} + 40 T_{7}^{21} + 163 T_{7}^{20} + 2264 T_{7}^{19} + \cdots + 20736 \) acting on \(S_{2}^{\mathrm{new}}(930, [\chi])\).