Properties

Label 2695.1.ck.b
Level $2695$
Weight $1$
Character orbit 2695.ck
Analytic conductor $1.345$
Analytic rank $0$
Dimension $12$
Projective image $D_{21}$
CM discriminant -55
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2695,1,Mod(109,2695)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2695, base_ring=CyclotomicField(42))
 
chi = DirichletCharacter(H, H._module([21, 40, 21]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2695.109");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2695 = 5 \cdot 7^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2695.ck (of order \(42\), degree \(12\), 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: \(1.34498020905\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: \(\Q(\zeta_{21})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - x^{11} + x^{9} - x^{8} + x^{6} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{4}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{21}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{21} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q + (\zeta_{42}^{9} - \zeta_{42}^{4}) q^{2} + (\zeta_{42}^{18} + \cdots + \zeta_{42}^{8}) q^{4}+ \cdots - \zeta_{42}^{11} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{42}^{9} - \zeta_{42}^{4}) q^{2} + (\zeta_{42}^{18} + \cdots + \zeta_{42}^{8}) q^{4}+ \cdots + q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q + q^{2} + q^{5} + 2 q^{7} + 2 q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q + q^{2} + q^{5} + 2 q^{7} + 2 q^{8} + q^{9} + q^{10} + q^{11} + 5 q^{13} - q^{14} + 13 q^{16} - 2 q^{17} + q^{18} + 5 q^{22} + q^{25} + q^{26} + 6 q^{31} + 7 q^{32} - 3 q^{34} - q^{35} + 6 q^{40} - 2 q^{43} - 7 q^{44} + q^{45} - 2 q^{49} - 2 q^{50} - 14 q^{52} - 2 q^{55} - 9 q^{56} - q^{59} + 2 q^{62} - q^{63} - 9 q^{64} + q^{65} - 7 q^{68} - q^{70} - 5 q^{71} + 6 q^{72} + q^{73} + 6 q^{77} - 8 q^{80} + q^{81} - 2 q^{83} + 4 q^{85} + q^{86} - q^{88} - 8 q^{89} - 2 q^{90} + 2 q^{91} + q^{98} + 12 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2695\mathbb{Z}\right)^\times\).

\(n\) \(981\) \(1816\) \(2157\)
\(\chi(n)\) \(-1\) \(-\zeta_{42}^{11}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
109.1
0.826239 0.563320i
0.365341 0.930874i
−0.988831 + 0.149042i
0.955573 0.294755i
0.955573 + 0.294755i
0.826239 + 0.563320i
−0.733052 0.680173i
0.0747301 + 0.997204i
0.365341 + 0.930874i
−0.733052 + 0.680173i
0.0747301 0.997204i
−0.988831 0.149042i
0.109562 0.101659i 0 −0.0730607 + 0.974928i 0.365341 0.930874i 0 0.222521 0.974928i 0.184292 + 0.231095i 0.955573 0.294755i −0.0546039 0.139129i
219.1 0.147791 1.97213i 0 −2.87863 0.433884i −0.733052 0.680173i 0 0.900969 + 0.433884i −0.841040 + 3.68484i 0.826239 0.563320i −1.44973 + 1.34515i
494.1 −0.603718 0.411608i 0 −0.170287 0.433884i 0.955573 0.294755i 0 0.900969 + 0.433884i −0.238377 + 1.04440i 0.0747301 + 0.997204i −0.698220 0.215372i
604.1 0.535628 + 1.36476i 0 −0.842614 + 0.781831i 0.826239 0.563320i 0 −0.623490 0.781831i −0.197424 0.0950744i −0.988831 + 0.149042i 1.21135 + 0.825886i
879.1 0.535628 1.36476i 0 −0.842614 0.781831i 0.826239 + 0.563320i 0 −0.623490 + 0.781831i −0.197424 + 0.0950744i −0.988831 0.149042i 1.21135 0.825886i
989.1 0.109562 + 0.101659i 0 −0.0730607 0.974928i 0.365341 + 0.930874i 0 0.222521 + 0.974928i 0.184292 0.231095i 0.955573 + 0.294755i −0.0546039 + 0.139129i
1264.1 1.88980 + 0.284841i 0 2.53464 + 0.781831i 0.0747301 + 0.997204i 0 −0.623490 0.781831i 2.84537 + 1.37026i 0.365341 0.930874i −0.142820 + 1.90580i
1374.1 −1.57906 0.487076i 0 1.42996 + 0.974928i −0.988831 + 0.149042i 0 0.222521 0.974928i −0.752824 0.944011i −0.733052 0.680173i 1.63402 + 0.246289i
1649.1 0.147791 + 1.97213i 0 −2.87863 + 0.433884i −0.733052 + 0.680173i 0 0.900969 0.433884i −0.841040 3.68484i 0.826239 + 0.563320i −1.44973 1.34515i
1759.1 1.88980 0.284841i 0 2.53464 0.781831i 0.0747301 0.997204i 0 −0.623490 + 0.781831i 2.84537 1.37026i 0.365341 + 0.930874i −0.142820 1.90580i
2034.1 −1.57906 + 0.487076i 0 1.42996 0.974928i −0.988831 0.149042i 0 0.222521 + 0.974928i −0.752824 + 0.944011i −0.733052 + 0.680173i 1.63402 0.246289i
2144.1 −0.603718 + 0.411608i 0 −0.170287 + 0.433884i 0.955573 + 0.294755i 0 0.900969 0.433884i −0.238377 1.04440i 0.0747301 0.997204i −0.698220 + 0.215372i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 109.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
55.d odd 2 1 CM by \(\Q(\sqrt{-55}) \)
49.g even 21 1 inner
2695.ck odd 42 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2695.1.ck.b yes 12
5.b even 2 1 2695.1.ck.a 12
11.b odd 2 1 2695.1.ck.a 12
49.g even 21 1 inner 2695.1.ck.b yes 12
55.d odd 2 1 CM 2695.1.ck.b yes 12
245.t even 42 1 2695.1.ck.a 12
539.x odd 42 1 2695.1.ck.a 12
2695.ck odd 42 1 inner 2695.1.ck.b yes 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2695.1.ck.a 12 5.b even 2 1
2695.1.ck.a 12 11.b odd 2 1
2695.1.ck.a 12 245.t even 42 1
2695.1.ck.a 12 539.x odd 42 1
2695.1.ck.b yes 12 1.a even 1 1 trivial
2695.1.ck.b yes 12 49.g even 21 1 inner
2695.1.ck.b yes 12 55.d odd 2 1 CM
2695.1.ck.b yes 12 2695.ck odd 42 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{12} - T_{2}^{11} + T_{2}^{9} - 15T_{2}^{8} + 22T_{2}^{6} - 21T_{2}^{5} + 48T_{2}^{4} + 71T_{2}^{3} + 28T_{2}^{2} - 8T_{2} + 1 \) acting on \(S_{1}^{\mathrm{new}}(2695, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{12} \) Copy content Toggle raw display
$5$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( (T^{6} - T^{5} + T^{4} + \cdots + 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$13$ \( T^{12} - 5 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{12} \) Copy content Toggle raw display
$23$ \( T^{12} \) Copy content Toggle raw display
$29$ \( T^{12} \) Copy content Toggle raw display
$31$ \( (T^{2} - T + 1)^{6} \) Copy content Toggle raw display
$37$ \( T^{12} \) Copy content Toggle raw display
$41$ \( T^{12} \) Copy content Toggle raw display
$43$ \( T^{12} + 2 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$47$ \( T^{12} \) Copy content Toggle raw display
$53$ \( T^{12} \) Copy content Toggle raw display
$59$ \( T^{12} + T^{11} + \cdots + 1 \) Copy content Toggle raw display
$61$ \( T^{12} \) Copy content Toggle raw display
$67$ \( T^{12} \) Copy content Toggle raw display
$71$ \( T^{12} + 5 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$73$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$79$ \( T^{12} \) Copy content Toggle raw display
$83$ \( (T^{6} + T^{5} + T^{4} + \cdots + 1)^{2} \) Copy content Toggle raw display
$89$ \( T^{12} + 8 T^{11} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{12} \) Copy content Toggle raw display
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