Properties

Label 465.1.u.a
Level $465$
Weight $1$
Character orbit 465.u
Analytic conductor $0.232$
Analytic rank $0$
Dimension $2$
Projective image $D_{3}$
CM discriminant -15
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [465,1,Mod(149,465)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(465, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 3, 2]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("465.149");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 465 = 3 \cdot 5 \cdot 31 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 465.u (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: \(0.232065230874\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{6})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{3}\)
Projective field: Galois closure of 3.1.14415.1
Artin image: $C_3\times S_3$
Artin field: Galois closure of 6.0.3243375.1

$q$-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.

\(f(q)\) \(=\) \( q - q^{2} - \zeta_{6} q^{3} + \zeta_{6}^{2} q^{5} + \zeta_{6} q^{6} + q^{8} + \zeta_{6}^{2} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - q^{2} - \zeta_{6} q^{3} + \zeta_{6}^{2} q^{5} + \zeta_{6} q^{6} + q^{8} + \zeta_{6}^{2} q^{9} - \zeta_{6}^{2} q^{10} + q^{15} - q^{16} + \zeta_{6} q^{17} - \zeta_{6}^{2} q^{18} + \zeta_{6} q^{19} + 2 q^{23} - \zeta_{6} q^{24} - \zeta_{6} q^{25} + q^{27} - q^{30} + q^{31} - \zeta_{6} q^{34} - \zeta_{6} q^{38} + \zeta_{6}^{2} q^{40} - \zeta_{6} q^{45} - 2 q^{46} - q^{47} + \zeta_{6} q^{48} + \zeta_{6}^{2} q^{49} + \zeta_{6} q^{50} - \zeta_{6}^{2} q^{51} + 2 \zeta_{6}^{2} q^{53} - q^{54} - \zeta_{6}^{2} q^{57} - q^{61} - q^{62} + q^{64} - 2 \zeta_{6} q^{69} + \zeta_{6}^{2} q^{72} + \zeta_{6}^{2} q^{75} + \zeta_{6} q^{79} - \zeta_{6}^{2} q^{80} - \zeta_{6} q^{81} - \zeta_{6}^{2} q^{83} - q^{85} + \zeta_{6} q^{90} - \zeta_{6} q^{93} + q^{94} - q^{95} - \zeta_{6}^{2} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{2} - q^{3} - q^{5} + q^{6} + 2 q^{8} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{2} - q^{3} - q^{5} + q^{6} + 2 q^{8} - q^{9} + q^{10} + 2 q^{15} - 2 q^{16} + q^{17} + q^{18} + q^{19} + 4 q^{23} - q^{24} - q^{25} + 2 q^{27} - 2 q^{30} + 2 q^{31} - q^{34} - q^{38} - q^{40} - q^{45} - 4 q^{46} - 2 q^{47} + q^{48} - q^{49} + q^{50} + q^{51} - 2 q^{53} - 2 q^{54} + q^{57} - 2 q^{61} - 2 q^{62} + 2 q^{64} - 2 q^{69} - q^{72} - q^{75} + q^{79} + q^{80} - q^{81} + q^{83} - 2 q^{85} + q^{90} - q^{93} + 2 q^{94} - 2 q^{95} + q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/465\mathbb{Z}\right)^\times\).

\(n\) \(187\) \(311\) \(406\)
\(\chi(n)\) \(-1\) \(-1\) \(\zeta_{6}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
149.1
0.500000 + 0.866025i
0.500000 0.866025i
−1.00000 −0.500000 0.866025i 0 −0.500000 + 0.866025i 0.500000 + 0.866025i 0 1.00000 −0.500000 + 0.866025i 0.500000 0.866025i
284.1 −1.00000 −0.500000 + 0.866025i 0 −0.500000 0.866025i 0.500000 0.866025i 0 1.00000 −0.500000 0.866025i 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
15.d odd 2 1 CM by \(\Q(\sqrt{-15}) \)
31.c even 3 1 inner
465.u odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 465.1.u.a 2
3.b odd 2 1 465.1.u.b yes 2
5.b even 2 1 465.1.u.b yes 2
5.c odd 4 2 2325.1.u.d 4
15.d odd 2 1 CM 465.1.u.a 2
15.e even 4 2 2325.1.u.d 4
31.c even 3 1 inner 465.1.u.a 2
93.h odd 6 1 465.1.u.b yes 2
155.j even 6 1 465.1.u.b yes 2
155.o odd 12 2 2325.1.u.d 4
465.u odd 6 1 inner 465.1.u.a 2
465.be even 12 2 2325.1.u.d 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
465.1.u.a 2 1.a even 1 1 trivial
465.1.u.a 2 15.d odd 2 1 CM
465.1.u.a 2 31.c even 3 1 inner
465.1.u.a 2 465.u odd 6 1 inner
465.1.u.b yes 2 3.b odd 2 1
465.1.u.b yes 2 5.b even 2 1
465.1.u.b yes 2 93.h odd 6 1
465.1.u.b yes 2 155.j even 6 1
2325.1.u.d 4 5.c odd 4 2
2325.1.u.d 4 15.e even 4 2
2325.1.u.d 4 155.o odd 12 2
2325.1.u.d 4 465.be even 12 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2} + 1 \) acting on \(S_{1}^{\mathrm{new}}(465, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

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