Properties

Label 270.4.a.j
Level $270$
Weight $4$
Character orbit 270.a
Self dual yes
Analytic conductor $15.931$
Analytic rank $0$
Dimension $1$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [270,4,Mod(1,270)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(270, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("270.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 270 = 2 \cdot 3^{3} \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 270.a (trivial)

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: yes
Analytic conductor: \(15.9305157015\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Fricke sign: \(1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q + 2 q^{2} + 4 q^{4} - 5 q^{5} + 14 q^{7} + 8 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + 2 q^{2} + 4 q^{4} - 5 q^{5} + 14 q^{7} + 8 q^{8} - 10 q^{10} - 3 q^{11} + 47 q^{13} + 28 q^{14} + 16 q^{16} + 39 q^{17} + 32 q^{19} - 20 q^{20} - 6 q^{22} + 99 q^{23} + 25 q^{25} + 94 q^{26} + 56 q^{28} - 51 q^{29} + 83 q^{31} + 32 q^{32} + 78 q^{34} - 70 q^{35} + 314 q^{37} + 64 q^{38} - 40 q^{40} + 108 q^{41} + 299 q^{43} - 12 q^{44} + 198 q^{46} - 531 q^{47} - 147 q^{49} + 50 q^{50} + 188 q^{52} - 564 q^{53} + 15 q^{55} + 112 q^{56} - 102 q^{58} - 12 q^{59} + 230 q^{61} + 166 q^{62} + 64 q^{64} - 235 q^{65} - 268 q^{67} + 156 q^{68} - 140 q^{70} - 120 q^{71} + 1106 q^{73} + 628 q^{74} + 128 q^{76} - 42 q^{77} - 739 q^{79} - 80 q^{80} + 216 q^{82} - 1086 q^{83} - 195 q^{85} + 598 q^{86} - 24 q^{88} + 120 q^{89} + 658 q^{91} + 396 q^{92} - 1062 q^{94} - 160 q^{95} - 1642 q^{97} - 294 q^{98}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
0
2.00000 0 4.00000 −5.00000 0 14.0000 8.00000 0 −10.0000
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(3\) \(-1\)
\(5\) \(1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 270.4.a.j yes 1
3.b odd 2 1 270.4.a.f 1
4.b odd 2 1 2160.4.a.b 1
5.b even 2 1 1350.4.a.e 1
5.c odd 4 2 1350.4.c.j 2
9.c even 3 2 810.4.e.f 2
9.d odd 6 2 810.4.e.n 2
12.b even 2 1 2160.4.a.l 1
15.d odd 2 1 1350.4.a.r 1
15.e even 4 2 1350.4.c.k 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
270.4.a.f 1 3.b odd 2 1
270.4.a.j yes 1 1.a even 1 1 trivial
810.4.e.f 2 9.c even 3 2
810.4.e.n 2 9.d odd 6 2
1350.4.a.e 1 5.b even 2 1
1350.4.a.r 1 15.d odd 2 1
1350.4.c.j 2 5.c odd 4 2
1350.4.c.k 2 15.e even 4 2
2160.4.a.b 1 4.b odd 2 1
2160.4.a.l 1 12.b even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(270))\):

\( T_{7} - 14 \) Copy content Toggle raw display
\( T_{11} + 3 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T - 2 \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T + 5 \) Copy content Toggle raw display
$7$ \( T - 14 \) Copy content Toggle raw display
$11$ \( T + 3 \) Copy content Toggle raw display
$13$ \( T - 47 \) Copy content Toggle raw display
$17$ \( T - 39 \) Copy content Toggle raw display
$19$ \( T - 32 \) Copy content Toggle raw display
$23$ \( T - 99 \) Copy content Toggle raw display
$29$ \( T + 51 \) Copy content Toggle raw display
$31$ \( T - 83 \) Copy content Toggle raw display
$37$ \( T - 314 \) Copy content Toggle raw display
$41$ \( T - 108 \) Copy content Toggle raw display
$43$ \( T - 299 \) Copy content Toggle raw display
$47$ \( T + 531 \) Copy content Toggle raw display
$53$ \( T + 564 \) Copy content Toggle raw display
$59$ \( T + 12 \) Copy content Toggle raw display
$61$ \( T - 230 \) Copy content Toggle raw display
$67$ \( T + 268 \) Copy content Toggle raw display
$71$ \( T + 120 \) Copy content Toggle raw display
$73$ \( T - 1106 \) Copy content Toggle raw display
$79$ \( T + 739 \) Copy content Toggle raw display
$83$ \( T + 1086 \) Copy content Toggle raw display
$89$ \( T - 120 \) Copy content Toggle raw display
$97$ \( T + 1642 \) Copy content Toggle raw display
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