Properties

Label 2740.1.bs.b
Level $2740$
Weight $1$
Character orbit 2740.bs
Analytic conductor $1.367$
Analytic rank $0$
Dimension $32$
Projective image $D_{68}$
CM discriminant -4
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2740,1,Mod(19,2740)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2740, base_ring=CyclotomicField(68))
 
chi = DirichletCharacter(H, H._module([34, 34, 23]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2740.19");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2740 = 2^{2} \cdot 5 \cdot 137 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2740.bs (of order \(68\), degree \(32\), 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: \(1.36743813461\)
Analytic rank: \(0\)
Dimension: \(32\)
Coefficient field: \(\Q(\zeta_{68})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{32} - x^{30} + x^{28} - x^{26} + x^{24} - x^{22} + x^{20} - x^{18} + x^{16} - x^{14} + x^{12} + \cdots + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{9}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{68}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{68} - \cdots)\)

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q - \zeta_{68}^{20} q^{2} - \zeta_{68}^{6} q^{4} + \zeta_{68}^{2} q^{5} + \zeta_{68}^{26} q^{8} - \zeta_{68}^{21} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{68}^{20} q^{2} - \zeta_{68}^{6} q^{4} + \zeta_{68}^{2} q^{5} + \zeta_{68}^{26} q^{8} - \zeta_{68}^{21} q^{9} - \zeta_{68}^{22} q^{10} + (\zeta_{68}^{10} + \zeta_{68}^{5}) q^{13} + \zeta_{68}^{12} q^{16} + (\zeta_{68}^{33} - \zeta_{68}^{17}) q^{17} - \zeta_{68}^{7} q^{18} - \zeta_{68}^{8} q^{20} + \zeta_{68}^{4} q^{25} + ( - \zeta_{68}^{30} - \zeta_{68}^{25}) q^{26} + ( - \zeta_{68}^{28} + \zeta_{68}^{13}) q^{29} - \zeta_{68}^{32} q^{32} + (\zeta_{68}^{19} - \zeta_{68}^{3}) q^{34} + \zeta_{68}^{27} q^{36} + (\zeta_{68}^{31} - \zeta_{68}^{3}) q^{37} + \zeta_{68}^{28} q^{40} + ( - \zeta_{68}^{27} - \zeta_{68}^{24}) q^{41} - \zeta_{68}^{23} q^{45} + \zeta_{68}^{32} q^{49} - \zeta_{68}^{24} q^{50} + ( - \zeta_{68}^{16} - \zeta_{68}^{11}) q^{52} + (\zeta_{68}^{16} - \zeta_{68}^{15}) q^{53} + ( - \zeta_{68}^{33} - \zeta_{68}^{14}) q^{58} + (\zeta_{68}^{25} + \zeta_{68}) q^{61} - \zeta_{68}^{18} q^{64} + (\zeta_{68}^{12} + \zeta_{68}^{7}) q^{65} + (\zeta_{68}^{23} + \zeta_{68}^{5}) q^{68} + \zeta_{68}^{13} q^{72} + (\zeta_{68}^{22} - \zeta_{68}^{14}) q^{73} + (\zeta_{68}^{23} + \zeta_{68}^{17}) q^{74} + \zeta_{68}^{14} q^{80} - \zeta_{68}^{8} q^{81} + ( - \zeta_{68}^{13} - \zeta_{68}^{10}) q^{82} + ( - \zeta_{68}^{19} - \zeta_{68}) q^{85} + ( - \zeta_{68}^{29} - \zeta_{68}^{16}) q^{89} - \zeta_{68}^{9} q^{90} + ( - \zeta_{68}^{23} + \zeta_{68}^{6}) q^{97} + \zeta_{68}^{18} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 32 q + 2 q^{2} - 2 q^{4} + 2 q^{5} + 2 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 32 q + 2 q^{2} - 2 q^{4} + 2 q^{5} + 2 q^{8} - 2 q^{10} + 2 q^{13} - 2 q^{16} + 2 q^{20} - 2 q^{25} - 2 q^{26} + 2 q^{29} + 2 q^{32} - 2 q^{40} + 2 q^{41} - 2 q^{49} + 2 q^{50} + 2 q^{52} - 2 q^{53} - 2 q^{58} - 2 q^{64} - 2 q^{65} + 2 q^{80} + 2 q^{81} - 2 q^{82} + 2 q^{89} + 2 q^{97} + 2 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2740\mathbb{Z}\right)^\times\).

\(n\) \(1097\) \(1371\) \(1921\)
\(\chi(n)\) \(-1\) \(-1\) \(\zeta_{68}^{21}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
19.1
−0.798017 + 0.602635i
−0.995734 + 0.0922684i
0.961826 0.273663i
−0.526432 + 0.850217i
−0.183750 + 0.982973i
0.673696 0.739009i
0.895163 0.445738i
−0.961826 0.273663i
−0.361242 0.932472i
−0.526432 0.850217i
−0.673696 0.739009i
0.673696 + 0.739009i
0.526432 + 0.850217i
0.361242 + 0.932472i
0.961826 + 0.273663i
−0.895163 + 0.445738i
−0.673696 + 0.739009i
0.183750 0.982973i
0.526432 0.850217i
−0.961826 + 0.273663i
−0.932472 + 0.361242i 0 0.739009 0.673696i 0.273663 0.961826i 0 0 −0.445738 + 0.895163i 0.526432 0.850217i 0.0922684 + 0.995734i
39.1 0.273663 + 0.961826i 0 −0.850217 + 0.526432i 0.982973 0.183750i 0 0 −0.739009 0.673696i −0.361242 0.932472i 0.445738 + 0.895163i
139.1 −0.739009 0.673696i 0 0.0922684 + 0.995734i 0.850217 0.526432i 0 0 0.602635 0.798017i −0.895163 0.445738i −0.982973 0.183750i
299.1 −0.0922684 + 0.995734i 0 −0.982973 0.183750i −0.445738 0.895163i 0 0 0.273663 0.961826i −0.798017 0.602635i 0.932472 0.361242i
379.1 0.850217 + 0.526432i 0 0.445738 + 0.895163i −0.932472 0.361242i 0 0 −0.0922684 + 0.995734i −0.673696 + 0.739009i −0.602635 0.798017i
419.1 0.602635 0.798017i 0 −0.273663 0.961826i −0.0922684 0.995734i 0 0 −0.932472 0.361242i −0.183750 0.982973i −0.850217 0.526432i
439.1 0.982973 + 0.183750i 0 0.932472 + 0.361242i 0.602635 0.798017i 0 0 0.850217 + 0.526432i 0.961826 0.273663i 0.739009 0.673696i
479.1 −0.739009 + 0.673696i 0 0.0922684 0.995734i 0.850217 + 0.526432i 0 0 0.602635 + 0.798017i 0.895163 0.445738i −0.982973 + 0.183750i
539.1 −0.445738 + 0.895163i 0 −0.602635 0.798017i −0.739009 + 0.673696i 0 0 0.982973 0.183750i 0.995734 + 0.0922684i −0.273663 0.961826i
559.1 −0.0922684 0.995734i 0 −0.982973 + 0.183750i −0.445738 + 0.895163i 0 0 0.273663 + 0.961826i −0.798017 + 0.602635i 0.932472 + 0.361242i
839.1 0.602635 + 0.798017i 0 −0.273663 + 0.961826i −0.0922684 + 0.995734i 0 0 −0.932472 + 0.361242i 0.183750 0.982973i −0.850217 + 0.526432i
1079.1 0.602635 + 0.798017i 0 −0.273663 + 0.961826i −0.0922684 + 0.995734i 0 0 −0.932472 + 0.361242i −0.183750 + 0.982973i −0.850217 + 0.526432i
1359.1 −0.0922684 0.995734i 0 −0.982973 + 0.183750i −0.445738 + 0.895163i 0 0 0.273663 + 0.961826i 0.798017 0.602635i 0.932472 + 0.361242i
1379.1 −0.445738 + 0.895163i 0 −0.602635 0.798017i −0.739009 + 0.673696i 0 0 0.982973 0.183750i −0.995734 0.0922684i −0.273663 0.961826i
1439.1 −0.739009 + 0.673696i 0 0.0922684 0.995734i 0.850217 + 0.526432i 0 0 0.602635 + 0.798017i −0.895163 + 0.445738i −0.982973 + 0.183750i
1479.1 0.982973 + 0.183750i 0 0.932472 + 0.361242i 0.602635 0.798017i 0 0 0.850217 + 0.526432i −0.961826 + 0.273663i 0.739009 0.673696i
1499.1 0.602635 0.798017i 0 −0.273663 0.961826i −0.0922684 0.995734i 0 0 −0.932472 0.361242i 0.183750 + 0.982973i −0.850217 0.526432i
1539.1 0.850217 + 0.526432i 0 0.445738 + 0.895163i −0.932472 0.361242i 0 0 −0.0922684 + 0.995734i 0.673696 0.739009i −0.602635 0.798017i
1619.1 −0.0922684 + 0.995734i 0 −0.982973 0.183750i −0.445738 0.895163i 0 0 0.273663 0.961826i 0.798017 + 0.602635i 0.932472 0.361242i
1779.1 −0.739009 0.673696i 0 0.0922684 + 0.995734i 0.850217 0.526432i 0 0 0.602635 0.798017i 0.895163 + 0.445738i −0.982973 0.183750i
See all 32 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 19.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
685.s even 68 1 inner
2740.bs odd 68 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2740.1.bs.b yes 32
4.b odd 2 1 CM 2740.1.bs.b yes 32
5.b even 2 1 2740.1.bs.a 32
20.d odd 2 1 2740.1.bs.a 32
137.g even 68 1 2740.1.bs.a 32
548.m odd 68 1 2740.1.bs.a 32
685.s even 68 1 inner 2740.1.bs.b yes 32
2740.bs odd 68 1 inner 2740.1.bs.b yes 32
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2740.1.bs.a 32 5.b even 2 1
2740.1.bs.a 32 20.d odd 2 1
2740.1.bs.a 32 137.g even 68 1
2740.1.bs.a 32 548.m odd 68 1
2740.1.bs.b yes 32 1.a even 1 1 trivial
2740.1.bs.b yes 32 4.b odd 2 1 CM
2740.1.bs.b yes 32 685.s even 68 1 inner
2740.1.bs.b yes 32 2740.bs odd 68 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{13}^{32} - 2 T_{13}^{31} + 2 T_{13}^{30} - 4 T_{13}^{28} + 8 T_{13}^{27} - 8 T_{13}^{26} + 16 T_{13}^{24} + \cdots + 1 \) acting on \(S_{1}^{\mathrm{new}}(2740, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{16} - T^{15} + T^{14} + \cdots + 1)^{2} \) Copy content Toggle raw display
$3$ \( T^{32} \) Copy content Toggle raw display
$5$ \( (T^{16} - T^{15} + T^{14} + \cdots + 1)^{2} \) Copy content Toggle raw display
$7$ \( T^{32} \) Copy content Toggle raw display
$11$ \( T^{32} \) Copy content Toggle raw display
$13$ \( T^{32} - 2 T^{31} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{32} + 17 T^{30} + \cdots + 289 \) Copy content Toggle raw display
$19$ \( T^{32} \) Copy content Toggle raw display
$23$ \( T^{32} \) Copy content Toggle raw display
$29$ \( T^{32} - 2 T^{31} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{32} \) Copy content Toggle raw display
$37$ \( (T^{16} - 17 T^{14} + \cdots + 17)^{2} \) Copy content Toggle raw display
$41$ \( T^{32} - 2 T^{31} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( T^{32} \) Copy content Toggle raw display
$47$ \( T^{32} \) Copy content Toggle raw display
$53$ \( T^{32} + 2 T^{31} + \cdots + 1 \) Copy content Toggle raw display
$59$ \( T^{32} \) Copy content Toggle raw display
$61$ \( T^{32} - 4 T^{30} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{32} \) Copy content Toggle raw display
$71$ \( T^{32} \) Copy content Toggle raw display
$73$ \( (T^{16} - 17 T^{11} + \cdots + 17)^{2} \) Copy content Toggle raw display
$79$ \( T^{32} \) Copy content Toggle raw display
$83$ \( T^{32} \) Copy content Toggle raw display
$89$ \( T^{32} - 2 T^{31} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{32} - 2 T^{31} + \cdots + 65536 \) Copy content Toggle raw display
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