Properties

Label 756.2.n.b
Level $756$
Weight $2$
Character orbit 756.n
Analytic conductor $6.037$
Analytic rank $0$
Dimension $84$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [756,2,Mod(19,756)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(756, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 4, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("756.19");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 756 = 2^{2} \cdot 3^{3} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 756.n (of order \(6\), degree \(2\), 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: \(6.03669039281\)
Analytic rank: \(0\)
Dimension: \(84\)
Relative dimension: \(42\) over \(\Q(\zeta_{6})\)
Twist minimal: no (minimal twist has level 252)
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.

\(\operatorname{Tr}(f)(q) = \) \( 84 q + q^{2} + q^{4} + 16 q^{8}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 84 q + q^{2} + q^{4} + 16 q^{8} - 18 q^{10} - 18 q^{13} + 25 q^{14} - 7 q^{16} - 6 q^{17} - 24 q^{20} + 6 q^{22} - 32 q^{25} + 30 q^{26} - 4 q^{28} - 10 q^{29} - 9 q^{32} + 24 q^{34} + 2 q^{37} + 6 q^{41} + 13 q^{44} + 10 q^{46} + 2 q^{49} + 17 q^{50} + 2 q^{53} + 32 q^{56} + 26 q^{58} - 24 q^{61} - 8 q^{64} - 50 q^{65} - 4 q^{70} + 30 q^{73} - 46 q^{74} - 46 q^{77} - 3 q^{80} - 18 q^{82} - 50 q^{85} - 18 q^{86} - 2 q^{88} + 102 q^{89} - 28 q^{92} + 3 q^{94} - 6 q^{97} - 21 q^{98}+O(q^{100}) \) Copy content Toggle raw display

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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
19.1 −1.41039 + 0.103929i 0 1.97840 0.293161i 1.91789i 0 −1.85299 + 1.88850i −2.75984 + 0.619084i 0 0.199325 + 2.70497i
19.2 −1.37782 + 0.318759i 0 1.79679 0.878385i 0.594537i 0 2.59555 + 0.512964i −2.19566 + 1.78300i 0 0.189514 + 0.819166i
19.3 −1.36968 + 0.352122i 0 1.75202 0.964586i 2.71053i 0 1.53391 2.15572i −2.06005 + 1.93809i 0 −0.954438 3.71255i
19.4 −1.34403 0.439974i 0 1.61285 + 1.18268i 2.88398i 0 −2.24777 + 1.39554i −1.64737 2.29917i 0 1.26887 3.87616i
19.5 −1.30137 + 0.553558i 0 1.38715 1.44077i 4.05112i 0 −2.21649 1.44470i −1.00765 + 2.64285i 0 2.24253 + 5.27202i
19.6 −1.28099 0.599230i 0 1.28185 + 1.53521i 2.56839i 0 0.477445 2.60232i −0.722083 2.73470i 0 −1.53906 + 3.29008i
19.7 −1.27769 0.606229i 0 1.26497 + 1.54914i 0.139892i 0 −1.99326 1.73980i −0.677105 2.74618i 0 −0.0848066 + 0.178738i
19.8 −1.17926 + 0.780599i 0 0.781329 1.84107i 2.00240i 0 −2.64523 + 0.0525529i 0.515742 + 2.78101i 0 −1.56307 2.36135i
19.9 −1.08144 + 0.911308i 0 0.339034 1.97105i 0.815110i 0 0.448419 2.60747i 1.42959 + 2.44055i 0 0.742817 + 0.881495i
19.10 −1.07941 0.913714i 0 0.330255 + 1.97254i 3.48216i 0 −0.638585 + 2.56753i 1.44586 2.43094i 0 −3.18169 + 3.75868i
19.11 −0.883516 + 1.10426i 0 −0.438800 1.95127i 2.93241i 0 2.24678 + 1.39713i 2.54241 + 1.23943i 0 3.23816 + 2.59083i
19.12 −0.825493 1.14829i 0 −0.637123 + 1.89580i 0.299382i 0 2.33495 1.24419i 2.70287 0.833374i 0 −0.343777 + 0.247138i
19.13 −0.746337 + 1.20124i 0 −0.885963 1.79306i 0.724862i 0 1.25991 + 2.32651i 2.81513 + 0.273973i 0 −0.870735 0.540991i
19.14 −0.726200 1.21352i 0 −0.945266 + 1.76252i 2.80831i 0 −0.514387 2.59527i 2.82531 0.132842i 0 3.40794 2.03940i
19.15 −0.687840 1.23567i 0 −1.05375 + 1.69988i 2.80831i 0 0.514387 + 2.59527i 2.82531 + 0.132842i 0 3.47014 1.93167i
19.16 −0.640648 + 1.26078i 0 −1.17914 1.61543i 1.05993i 0 −0.349222 2.62260i 2.79212 0.451713i 0 −1.33634 0.679041i
19.17 −0.581699 1.28904i 0 −1.32325 + 1.49967i 0.299382i 0 −2.33495 + 1.24419i 2.70287 + 0.833374i 0 −0.385916 + 0.174150i
19.18 −0.447581 + 1.34152i 0 −1.59934 1.20088i 3.94623i 0 −2.37341 + 1.16916i 2.32683 1.60806i 0 −5.29393 1.76626i
19.19 −0.270834 + 1.38804i 0 −1.85330 0.751856i 2.69249i 0 −1.51663 + 2.16791i 1.54554 2.36882i 0 3.73728 + 0.729218i
19.20 −0.251594 1.39165i 0 −1.87340 + 0.700263i 3.48216i 0 0.638585 2.56753i 1.44586 + 2.43094i 0 −4.84596 + 0.876089i
See all 84 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 19.42
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner
63.k odd 6 1 inner
252.n even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 756.2.n.b 84
3.b odd 2 1 252.2.n.b 84
4.b odd 2 1 inner 756.2.n.b 84
7.d odd 6 1 756.2.bj.b 84
9.c even 3 1 756.2.bj.b 84
9.d odd 6 1 252.2.bj.b yes 84
12.b even 2 1 252.2.n.b 84
21.g even 6 1 252.2.bj.b yes 84
28.f even 6 1 756.2.bj.b 84
36.f odd 6 1 756.2.bj.b 84
36.h even 6 1 252.2.bj.b yes 84
63.k odd 6 1 inner 756.2.n.b 84
63.s even 6 1 252.2.n.b 84
84.j odd 6 1 252.2.bj.b yes 84
252.n even 6 1 inner 756.2.n.b 84
252.bn odd 6 1 252.2.n.b 84
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
252.2.n.b 84 3.b odd 2 1
252.2.n.b 84 12.b even 2 1
252.2.n.b 84 63.s even 6 1
252.2.n.b 84 252.bn odd 6 1
252.2.bj.b yes 84 9.d odd 6 1
252.2.bj.b yes 84 21.g even 6 1
252.2.bj.b yes 84 36.h even 6 1
252.2.bj.b yes 84 84.j odd 6 1
756.2.n.b 84 1.a even 1 1 trivial
756.2.n.b 84 4.b odd 2 1 inner
756.2.n.b 84 63.k odd 6 1 inner
756.2.n.b 84 252.n even 6 1 inner
756.2.bj.b 84 7.d odd 6 1
756.2.bj.b 84 9.c even 3 1
756.2.bj.b 84 28.f even 6 1
756.2.bj.b 84 36.f odd 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{42} + 113 T_{5}^{40} + 5811 T_{5}^{38} + 180273 T_{5}^{36} + 3769914 T_{5}^{34} + 56237622 T_{5}^{32} + 617515849 T_{5}^{30} + 5076052073 T_{5}^{28} + 31455323817 T_{5}^{26} + 146814741693 T_{5}^{24} + \cdots + 2187 \) acting on \(S_{2}^{\mathrm{new}}(756, [\chi])\). Copy content Toggle raw display