Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [686,2,Mod(99,686)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(686, base_ring=CyclotomicField(14))
chi = DirichletCharacter(H, H._module([10]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("686.99");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 686 = 2 \cdot 7^{3} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 686.e (of order \(7\), degree \(6\), 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: | \(5.47773757866\) |
Analytic rank: | \(0\) |
Dimension: | \(24\) |
Relative dimension: | \(4\) over \(\Q(\zeta_{7})\) |
Twist minimal: | no (minimal twist has level 98) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{7}]$ |
$q$-expansion
The algebraic \(q\)-expansion of this newform has not been computed, 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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
99.1 | 0.222521 | − | 0.974928i | −1.79108 | + | 2.24595i | −0.900969 | − | 0.433884i | 0.584442 | − | 0.732867i | 1.79108 | + | 2.24595i | 0 | −0.623490 | + | 0.781831i | −1.16874 | − | 5.12059i | −0.584442 | − | 0.732867i | ||
99.2 | 0.222521 | − | 0.974928i | 0.335594 | − | 0.420822i | −0.900969 | − | 0.433884i | −0.784813 | + | 0.984124i | −0.335594 | − | 0.420822i | 0 | −0.623490 | + | 0.781831i | 0.603095 | + | 2.64233i | 0.784813 | + | 0.984124i | ||
99.3 | 0.222521 | − | 0.974928i | 0.743468 | − | 0.932280i | −0.900969 | − | 0.433884i | 1.88321 | − | 2.36147i | −0.743468 | − | 0.932280i | 0 | −0.623490 | + | 0.781831i | 0.351162 | + | 1.53854i | −1.88321 | − | 2.36147i | ||
99.4 | 0.222521 | − | 0.974928i | 1.18152 | − | 1.48158i | −0.900969 | − | 0.433884i | −2.52885 | + | 3.17107i | −1.18152 | − | 1.48158i | 0 | −0.623490 | + | 0.781831i | −0.131528 | − | 0.576262i | 2.52885 | + | 3.17107i | ||
197.1 | 0.900969 | + | 0.433884i | −0.643125 | − | 2.81771i | 0.623490 | + | 0.781831i | −0.138970 | − | 0.608868i | 0.643125 | − | 2.81771i | 0 | 0.222521 | + | 0.974928i | −4.82299 | + | 2.32263i | 0.138970 | − | 0.608868i | ||
197.2 | 0.900969 | + | 0.433884i | −0.252266 | − | 1.10525i | 0.623490 | + | 0.781831i | −0.851567 | − | 3.73096i | 0.252266 | − | 1.10525i | 0 | 0.222521 | + | 0.974928i | 1.54497 | − | 0.744017i | 0.851567 | − | 3.73096i | ||
197.3 | 0.900969 | + | 0.433884i | −0.00466617 | − | 0.0204438i | 0.623490 | + | 0.781831i | 0.268304 | + | 1.17552i | 0.00466617 | − | 0.0204438i | 0 | 0.222521 | + | 0.974928i | 2.70251 | − | 1.30146i | −0.268304 | + | 1.17552i | ||
197.4 | 0.900969 | + | 0.433884i | 0.355984 | + | 1.55967i | 0.623490 | + | 0.781831i | 0.0437854 | + | 0.191836i | −0.355984 | + | 1.55967i | 0 | 0.222521 | + | 0.974928i | 0.397067 | − | 0.191218i | −0.0437854 | + | 0.191836i | ||
295.1 | −0.623490 | + | 0.781831i | −3.01568 | − | 1.45228i | −0.222521 | − | 0.974928i | −1.19709 | − | 0.576486i | 3.01568 | − | 1.45228i | 0 | 0.900969 | + | 0.433884i | 5.11476 | + | 6.41370i | 1.19709 | − | 0.576486i | ||
295.2 | −0.623490 | + | 0.781831i | −1.60279 | − | 0.771862i | −0.222521 | − | 0.974928i | 2.03762 | + | 0.981264i | 1.60279 | − | 0.771862i | 0 | 0.900969 | + | 0.433884i | 0.102691 | + | 0.128770i | −2.03762 | + | 0.981264i | ||
295.3 | −0.623490 | + | 0.781831i | 0.567161 | + | 0.273130i | −0.222521 | − | 0.974928i | −0.974055 | − | 0.469080i | −0.567161 | + | 0.273130i | 0 | 0.900969 | + | 0.433884i | −1.62340 | − | 2.03568i | 0.974055 | − | 0.469080i | ||
295.4 | −0.623490 | + | 0.781831i | 0.625881 | + | 0.301408i | −0.222521 | − | 0.974928i | 1.65798 | + | 0.798443i | −0.625881 | + | 0.301408i | 0 | 0.900969 | + | 0.433884i | −1.56959 | − | 1.96820i | −1.65798 | + | 0.798443i | ||
393.1 | −0.623490 | − | 0.781831i | −3.01568 | + | 1.45228i | −0.222521 | + | 0.974928i | −1.19709 | + | 0.576486i | 3.01568 | + | 1.45228i | 0 | 0.900969 | − | 0.433884i | 5.11476 | − | 6.41370i | 1.19709 | + | 0.576486i | ||
393.2 | −0.623490 | − | 0.781831i | −1.60279 | + | 0.771862i | −0.222521 | + | 0.974928i | 2.03762 | − | 0.981264i | 1.60279 | + | 0.771862i | 0 | 0.900969 | − | 0.433884i | 0.102691 | − | 0.128770i | −2.03762 | − | 0.981264i | ||
393.3 | −0.623490 | − | 0.781831i | 0.567161 | − | 0.273130i | −0.222521 | + | 0.974928i | −0.974055 | + | 0.469080i | −0.567161 | − | 0.273130i | 0 | 0.900969 | − | 0.433884i | −1.62340 | + | 2.03568i | 0.974055 | + | 0.469080i | ||
393.4 | −0.623490 | − | 0.781831i | 0.625881 | − | 0.301408i | −0.222521 | + | 0.974928i | 1.65798 | − | 0.798443i | −0.625881 | − | 0.301408i | 0 | 0.900969 | − | 0.433884i | −1.56959 | + | 1.96820i | −1.65798 | − | 0.798443i | ||
491.1 | 0.900969 | − | 0.433884i | −0.643125 | + | 2.81771i | 0.623490 | − | 0.781831i | −0.138970 | + | 0.608868i | 0.643125 | + | 2.81771i | 0 | 0.222521 | − | 0.974928i | −4.82299 | − | 2.32263i | 0.138970 | + | 0.608868i | ||
491.2 | 0.900969 | − | 0.433884i | −0.252266 | + | 1.10525i | 0.623490 | − | 0.781831i | −0.851567 | + | 3.73096i | 0.252266 | + | 1.10525i | 0 | 0.222521 | − | 0.974928i | 1.54497 | + | 0.744017i | 0.851567 | + | 3.73096i | ||
491.3 | 0.900969 | − | 0.433884i | −0.00466617 | + | 0.0204438i | 0.623490 | − | 0.781831i | 0.268304 | − | 1.17552i | 0.00466617 | + | 0.0204438i | 0 | 0.222521 | − | 0.974928i | 2.70251 | + | 1.30146i | −0.268304 | − | 1.17552i | ||
491.4 | 0.900969 | − | 0.433884i | 0.355984 | − | 1.55967i | 0.623490 | − | 0.781831i | 0.0437854 | − | 0.191836i | −0.355984 | − | 1.55967i | 0 | 0.222521 | − | 0.974928i | 0.397067 | + | 0.191218i | −0.0437854 | − | 0.191836i | ||
See all 24 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
49.e | even | 7 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 686.2.e.e | 24 | |
7.b | odd | 2 | 1 | 686.2.e.f | 24 | ||
7.c | even | 3 | 1 | 686.2.g.b | 24 | ||
7.c | even | 3 | 1 | 686.2.g.c | 24 | ||
7.d | odd | 6 | 1 | 98.2.g.a | ✓ | 24 | |
7.d | odd | 6 | 1 | 686.2.g.a | 24 | ||
21.g | even | 6 | 1 | 882.2.z.d | 24 | ||
28.f | even | 6 | 1 | 784.2.bg.a | 24 | ||
49.e | even | 7 | 1 | inner | 686.2.e.e | 24 | |
49.e | even | 7 | 1 | 4802.2.a.k | 12 | ||
49.f | odd | 14 | 1 | 686.2.e.f | 24 | ||
49.f | odd | 14 | 1 | 4802.2.a.i | 12 | ||
49.g | even | 21 | 1 | 686.2.g.b | 24 | ||
49.g | even | 21 | 1 | 686.2.g.c | 24 | ||
49.h | odd | 42 | 1 | 98.2.g.a | ✓ | 24 | |
49.h | odd | 42 | 1 | 686.2.g.a | 24 | ||
147.o | even | 42 | 1 | 882.2.z.d | 24 | ||
196.p | even | 42 | 1 | 784.2.bg.a | 24 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
98.2.g.a | ✓ | 24 | 7.d | odd | 6 | 1 | |
98.2.g.a | ✓ | 24 | 49.h | odd | 42 | 1 | |
686.2.e.e | 24 | 1.a | even | 1 | 1 | trivial | |
686.2.e.e | 24 | 49.e | even | 7 | 1 | inner | |
686.2.e.f | 24 | 7.b | odd | 2 | 1 | ||
686.2.e.f | 24 | 49.f | odd | 14 | 1 | ||
686.2.g.a | 24 | 7.d | odd | 6 | 1 | ||
686.2.g.a | 24 | 49.h | odd | 42 | 1 | ||
686.2.g.b | 24 | 7.c | even | 3 | 1 | ||
686.2.g.b | 24 | 49.g | even | 21 | 1 | ||
686.2.g.c | 24 | 7.c | even | 3 | 1 | ||
686.2.g.c | 24 | 49.g | even | 21 | 1 | ||
784.2.bg.a | 24 | 28.f | even | 6 | 1 | ||
784.2.bg.a | 24 | 196.p | even | 42 | 1 | ||
882.2.z.d | 24 | 21.g | even | 6 | 1 | ||
882.2.z.d | 24 | 147.o | even | 42 | 1 | ||
4802.2.a.i | 12 | 49.f | odd | 14 | 1 | ||
4802.2.a.k | 12 | 49.e | even | 7 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{24} + 7 T_{3}^{23} + 29 T_{3}^{22} + 77 T_{3}^{21} + 167 T_{3}^{20} + 273 T_{3}^{19} + 697 T_{3}^{18} + \cdots + 1 \) acting on \(S_{2}^{\mathrm{new}}(686, [\chi])\).