Properties

Label 1001.1.y.d
Level $1001$
Weight $1$
Character orbit 1001.y
Analytic conductor $0.500$
Analytic rank $0$
Dimension $8$
Projective image $D_{15}$
CM discriminant -143
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1001,1,Mod(142,1001)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1001, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([2, 3, 3]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1001.142");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1001 = 7 \cdot 11 \cdot 13 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 1001.y (of order \(6\), degree \(2\), 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: \(0.499564077646\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\zeta_{15})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{15}\)
Projective field: Galois closure of 15.1.345408215017012205401343.1

$q$-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.

\(f(q)\) \(=\) \( q + ( - \zeta_{30}^{6} - \zeta_{30}^{4}) q^{2} + (\zeta_{30}^{14} + \zeta_{30}^{6}) q^{3} + (\zeta_{30}^{12} + \cdots + \zeta_{30}^{8}) q^{4}+ \cdots + ( - \zeta_{30}^{13} + \cdots - \zeta_{30}^{5}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{30}^{6} - \zeta_{30}^{4}) q^{2} + (\zeta_{30}^{14} + \zeta_{30}^{6}) q^{3} + (\zeta_{30}^{12} + \cdots + \zeta_{30}^{8}) q^{4}+ \cdots + ( - \zeta_{30}^{8} + \zeta_{30}^{7} - 1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + q^{2} - q^{3} - 5 q^{4} + 12 q^{6} - q^{7} + 2 q^{8} - 5 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + q^{2} - q^{3} - 5 q^{4} + 12 q^{6} - q^{7} + 2 q^{8} - 5 q^{9} + 4 q^{11} - 8 q^{13} + 2 q^{14} - 6 q^{16} - 2 q^{19} + q^{21} + 2 q^{22} + 2 q^{23} - 4 q^{24} - 4 q^{25} - q^{26} - 2 q^{27} - 10 q^{28} - 5 q^{32} + q^{33} + 3 q^{38} + q^{39} - 2 q^{41} - 4 q^{42} + 5 q^{44} + 2 q^{46} + 18 q^{48} + q^{49} - 2 q^{50} + 5 q^{52} + 2 q^{53} - 4 q^{54} - 4 q^{56} + 6 q^{57} + 5 q^{63} + 8 q^{64} + 6 q^{66} + 4 q^{69} - 5 q^{72} + q^{73} - q^{75} + q^{77} - 12 q^{78} - 6 q^{81} + q^{82} - 2 q^{83} + 5 q^{84} + q^{88} + q^{91} - 10 q^{92} - 5 q^{96} + 6 q^{98} - 10 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1001\mathbb{Z}\right)^\times\).

\(n\) \(365\) \(430\) \(925\)
\(\chi(n)\) \(-1\) \(-\zeta_{30}^{5}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
142.1
−0.978148 + 0.207912i
−0.104528 + 0.994522i
0.669131 0.743145i
0.913545 + 0.406737i
−0.978148 0.207912i
−0.104528 0.994522i
0.669131 + 0.743145i
0.913545 0.406737i
−0.978148 + 1.69420i −0.669131 1.15897i −1.41355 2.44833i 0 2.61803 0.104528 0.994522i 3.57433 −0.395472 + 0.684977i 0
142.2 −0.104528 + 0.181049i −0.913545 1.58231i 0.478148 + 0.828176i 0 0.381966 −0.669131 + 0.743145i −0.408977 −1.16913 + 2.02499i 0
142.3 0.669131 1.15897i 0.978148 + 1.69420i −0.395472 0.684977i 0 2.61803 −0.913545 0.406737i 0.279773 −1.41355 + 2.44833i 0
142.4 0.913545 1.58231i 0.104528 + 0.181049i −1.16913 2.02499i 0 0.381966 0.978148 0.207912i −2.44512 0.478148 0.828176i 0
571.1 −0.978148 1.69420i −0.669131 + 1.15897i −1.41355 + 2.44833i 0 2.61803 0.104528 + 0.994522i 3.57433 −0.395472 0.684977i 0
571.2 −0.104528 0.181049i −0.913545 + 1.58231i 0.478148 0.828176i 0 0.381966 −0.669131 0.743145i −0.408977 −1.16913 2.02499i 0
571.3 0.669131 + 1.15897i 0.978148 1.69420i −0.395472 + 0.684977i 0 2.61803 −0.913545 + 0.406737i 0.279773 −1.41355 2.44833i 0
571.4 0.913545 + 1.58231i 0.104528 0.181049i −1.16913 + 2.02499i 0 0.381966 0.978148 + 0.207912i −2.44512 0.478148 + 0.828176i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 142.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
143.d odd 2 1 CM by \(\Q(\sqrt{-143}) \)
7.c even 3 1 inner
1001.y odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1001.1.y.d yes 8
7.c even 3 1 inner 1001.1.y.d yes 8
11.b odd 2 1 1001.1.y.c 8
13.b even 2 1 1001.1.y.c 8
77.h odd 6 1 1001.1.y.c 8
91.r even 6 1 1001.1.y.c 8
143.d odd 2 1 CM 1001.1.y.d yes 8
1001.y odd 6 1 inner 1001.1.y.d yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1001.1.y.c 8 11.b odd 2 1
1001.1.y.c 8 13.b even 2 1
1001.1.y.c 8 77.h odd 6 1
1001.1.y.c 8 91.r even 6 1
1001.1.y.d yes 8 1.a even 1 1 trivial
1001.1.y.d yes 8 7.c even 3 1 inner
1001.1.y.d yes 8 143.d odd 2 1 CM
1001.1.y.d yes 8 1001.y odd 6 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} - T_{2}^{7} + 5T_{2}^{6} - 4T_{2}^{5} + 19T_{2}^{4} - 14T_{2}^{3} + 20T_{2}^{2} + 4T_{2} + 1 \) acting on \(S_{1}^{\mathrm{new}}(1001, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

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