Properties

Label 1620.1.f.e
Level $1620$
Weight $1$
Character orbit 1620.f
Analytic conductor $0.808$
Analytic rank $0$
Dimension $4$
Projective image $D_{6}$
CM discriminant -4
Inner twists $8$

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Newspace parameters

Level: \( N \) \(=\) \( 1620 = 2^{2} \cdot 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 1620.f (of order \(2\), degree \(1\), minimal)

Newform invariants

Self dual: no
Analytic conductor: \(0.808485320465\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\zeta_{12})\)
Defining polynomial: \(x^{4} - x^{2} + 1\)
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{6}\)
Projective field: Galois closure of 6.2.157464000.3

$q$-expansion

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

\(f(q)\) \(=\) \( q + \zeta_{12}^{3} q^{2} - q^{4} -\zeta_{12} q^{5} -\zeta_{12}^{3} q^{8} +O(q^{10})\) \( q + \zeta_{12}^{3} q^{2} - q^{4} -\zeta_{12} q^{5} -\zeta_{12}^{3} q^{8} -\zeta_{12}^{4} q^{10} + ( \zeta_{12}^{2} + \zeta_{12}^{4} ) q^{13} + q^{16} + \zeta_{12}^{3} q^{17} + \zeta_{12} q^{20} + \zeta_{12}^{2} q^{25} + ( -\zeta_{12} + \zeta_{12}^{5} ) q^{26} + ( -\zeta_{12} + \zeta_{12}^{5} ) q^{29} + \zeta_{12}^{3} q^{32} - q^{34} + ( \zeta_{12}^{2} + \zeta_{12}^{4} ) q^{37} + \zeta_{12}^{4} q^{40} - q^{49} + \zeta_{12}^{5} q^{50} + ( -\zeta_{12}^{2} - \zeta_{12}^{4} ) q^{52} + 2 \zeta_{12}^{3} q^{53} + ( -\zeta_{12}^{2} - \zeta_{12}^{4} ) q^{58} + q^{61} - q^{64} + ( -\zeta_{12}^{3} - \zeta_{12}^{5} ) q^{65} -\zeta_{12}^{3} q^{68} + ( -\zeta_{12}^{2} - \zeta_{12}^{4} ) q^{73} + ( -\zeta_{12} + \zeta_{12}^{5} ) q^{74} -\zeta_{12} q^{80} -\zeta_{12}^{4} q^{85} + ( \zeta_{12} - \zeta_{12}^{5} ) q^{89} -\zeta_{12}^{3} q^{98} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4q - 4q^{4} + O(q^{10}) \) \( 4q - 4q^{4} + 2q^{10} + 4q^{16} + 2q^{25} - 4q^{34} - 2q^{40} - 4q^{49} + 4q^{61} - 4q^{64} + 2q^{85} + O(q^{100}) \)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1620\mathbb{Z}\right)^\times\).

\(n\) \(811\) \(1297\) \(1541\)
\(\chi(n)\) \(-1\) \(-1\) \(1\)

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.

Label \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1459.1
0.866025 0.500000i
−0.866025 0.500000i
0.866025 + 0.500000i
−0.866025 + 0.500000i
1.00000i 0 −1.00000 −0.866025 + 0.500000i 0 0 1.00000i 0 0.500000 + 0.866025i
1459.2 1.00000i 0 −1.00000 0.866025 + 0.500000i 0 0 1.00000i 0 0.500000 0.866025i
1459.3 1.00000i 0 −1.00000 −0.866025 0.500000i 0 0 1.00000i 0 0.500000 0.866025i
1459.4 1.00000i 0 −1.00000 0.866025 0.500000i 0 0 1.00000i 0 0.500000 + 0.866025i
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
3.b odd 2 1 inner
5.b even 2 1 inner
12.b even 2 1 inner
15.d odd 2 1 inner
20.d odd 2 1 inner
60.h even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1620.1.f.e 4
3.b odd 2 1 inner 1620.1.f.e 4
4.b odd 2 1 CM 1620.1.f.e 4
5.b even 2 1 inner 1620.1.f.e 4
9.c even 3 1 1620.1.p.c 4
9.c even 3 1 1620.1.p.e 4
9.d odd 6 1 1620.1.p.c 4
9.d odd 6 1 1620.1.p.e 4
12.b even 2 1 inner 1620.1.f.e 4
15.d odd 2 1 inner 1620.1.f.e 4
20.d odd 2 1 inner 1620.1.f.e 4
36.f odd 6 1 1620.1.p.c 4
36.f odd 6 1 1620.1.p.e 4
36.h even 6 1 1620.1.p.c 4
36.h even 6 1 1620.1.p.e 4
45.h odd 6 1 1620.1.p.c 4
45.h odd 6 1 1620.1.p.e 4
45.j even 6 1 1620.1.p.c 4
45.j even 6 1 1620.1.p.e 4
60.h even 2 1 inner 1620.1.f.e 4
180.n even 6 1 1620.1.p.c 4
180.n even 6 1 1620.1.p.e 4
180.p odd 6 1 1620.1.p.c 4
180.p odd 6 1 1620.1.p.e 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1620.1.f.e 4 1.a even 1 1 trivial
1620.1.f.e 4 3.b odd 2 1 inner
1620.1.f.e 4 4.b odd 2 1 CM
1620.1.f.e 4 5.b even 2 1 inner
1620.1.f.e 4 12.b even 2 1 inner
1620.1.f.e 4 15.d odd 2 1 inner
1620.1.f.e 4 20.d odd 2 1 inner
1620.1.f.e 4 60.h even 2 1 inner
1620.1.p.c 4 9.c even 3 1
1620.1.p.c 4 9.d odd 6 1
1620.1.p.c 4 36.f odd 6 1
1620.1.p.c 4 36.h even 6 1
1620.1.p.c 4 45.h odd 6 1
1620.1.p.c 4 45.j even 6 1
1620.1.p.c 4 180.n even 6 1
1620.1.p.c 4 180.p odd 6 1
1620.1.p.e 4 9.c even 3 1
1620.1.p.e 4 9.d odd 6 1
1620.1.p.e 4 36.f odd 6 1
1620.1.p.e 4 36.h even 6 1
1620.1.p.e 4 45.h odd 6 1
1620.1.p.e 4 45.j even 6 1
1620.1.p.e 4 180.n even 6 1
1620.1.p.e 4 180.p odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{1}^{\mathrm{new}}(1620, [\chi])\):

\( T_{7} \)
\( T_{23} \)

Hecke characteristic polynomials

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