Properties

Label 2880.2.h.e
Level $2880$
Weight $2$
Character orbit 2880.h
Analytic conductor $22.997$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2880,2,Mod(1151,2880)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2880, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2880.1151");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2880 = 2^{6} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2880.h (of order \(2\), degree \(1\), not 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: \(22.9969157821\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.18939904.2
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 4x^{7} + 14x^{6} - 28x^{5} + 43x^{4} - 44x^{3} + 30x^{2} - 12x + 2 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{8} \)
Twist minimal: no (minimal twist has level 180)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{4} q^{5} - \beta_{7} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{4} q^{5} - \beta_{7} q^{7} + \beta_1 q^{11} + ( - \beta_{2} - 2) q^{13} + 4 \beta_{4} q^{17} + 2 \beta_{6} q^{19} + ( - \beta_{3} - \beta_1) q^{23} - q^{25} + (4 \beta_{5} + 2 \beta_{4}) q^{29} + (\beta_{7} + \beta_{6}) q^{31} - \beta_{3} q^{35} + ( - 5 \beta_{2} + 2) q^{37} + \beta_{5} q^{41} - 2 \beta_{6} q^{43} + 2 \beta_{3} q^{47} + ( - 8 \beta_{2} - 7) q^{49} + ( - 2 \beta_{5} + 8 \beta_{4}) q^{53} - \beta_{6} q^{55} - 3 \beta_1 q^{59} + ( - 2 \beta_{2} - 2) q^{61} + ( - \beta_{5} + 2 \beta_{4}) q^{65} + ( - 2 \beta_{7} - 2 \beta_{6}) q^{67} + ( - 2 \beta_{3} + 2 \beta_1) q^{71} + ( - 2 \beta_{2} + 6) q^{73} + ( - 6 \beta_{5} + 2 \beta_{4}) q^{77} + (\beta_{7} - 3 \beta_{6}) q^{79} + 2 \beta_{3} q^{83} + 4 q^{85} + (\beta_{5} + 4 \beta_{4}) q^{89} + (3 \beta_{7} - \beta_{6}) q^{91} + 2 \beta_1 q^{95} + ( - 6 \beta_{2} + 6) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 16 q^{13} - 8 q^{25} + 16 q^{37} - 56 q^{49} - 16 q^{61} + 48 q^{73} + 32 q^{85} + 48 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 4x^{7} + 14x^{6} - 28x^{5} + 43x^{4} - 44x^{3} + 30x^{2} - 12x + 2 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( -\nu^{6} + 3\nu^{5} - 10\nu^{4} + 15\nu^{3} - 17\nu^{2} + 10\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{6} - 3\nu^{5} + 10\nu^{4} - 15\nu^{3} + 19\nu^{2} - 12\nu + 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( -\nu^{6} + 3\nu^{5} - 12\nu^{4} + 19\nu^{3} - 31\nu^{2} + 22\nu - 10 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( -8\nu^{7} + 28\nu^{6} - 98\nu^{5} + 175\nu^{4} - 256\nu^{3} + 223\nu^{2} - 126\nu + 31 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( 10\nu^{7} - 35\nu^{6} + 123\nu^{5} - 220\nu^{4} + 325\nu^{3} - 285\nu^{2} + 166\nu - 42 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( -18\nu^{7} + 63\nu^{6} - 219\nu^{5} + 390\nu^{4} - 565\nu^{3} + 489\nu^{2} - 272\nu + 66 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( 38\nu^{7} - 133\nu^{6} + 465\nu^{5} - 830\nu^{4} + 1215\nu^{3} - 1059\nu^{2} + 608\nu - 152 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} + \beta_{6} - 2\beta_{5} + 2 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{7} + \beta_{6} - 2\beta_{5} + 2\beta_{2} + 2\beta _1 - 6 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{7} - 3\beta_{6} + 7\beta_{5} + 6\beta_{4} + 3\beta_{2} + 3\beta _1 - 10 ) / 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -5\beta_{7} - 7\beta_{6} + 16\beta_{5} + 12\beta_{4} - 2\beta_{3} - 8\beta_{2} - 6\beta _1 + 14 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 3\beta_{7} + 8\beta_{6} - 13\beta_{5} - 20\beta_{4} - 5\beta_{3} - 25\beta_{2} - 20\beta _1 + 52 ) / 4 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 22\beta_{7} + 42\beta_{6} - 80\beta_{5} - 90\beta_{4} + 5\beta_{3} + 16\beta_{2} + 7\beta _1 - 12 ) / 4 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 7\beta_{7} + 4\beta_{6} - 19\beta_{5} + 35\beta_{3} + 147\beta_{2} + 98\beta _1 - 236 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2880\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(641\) \(901\) \(2431\)
\(\chi(n)\) \(1\) \(-1\) \(1\) \(-1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1151.1
0.500000 + 1.44392i
0.500000 + 0.691860i
0.500000 2.10607i
0.500000 0.0297061i
0.500000 + 0.0297061i
0.500000 + 2.10607i
0.500000 0.691860i
0.500000 1.44392i
0 0 0 1.00000i 0 5.03127i 0 0 0
1151.2 0 0 0 1.00000i 0 1.63899i 0 0 0
1151.3 0 0 0 1.00000i 0 1.63899i 0 0 0
1151.4 0 0 0 1.00000i 0 5.03127i 0 0 0
1151.5 0 0 0 1.00000i 0 5.03127i 0 0 0
1151.6 0 0 0 1.00000i 0 1.63899i 0 0 0
1151.7 0 0 0 1.00000i 0 1.63899i 0 0 0
1151.8 0 0 0 1.00000i 0 5.03127i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1151.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
4.b odd 2 1 inner
12.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2880.2.h.e 8
3.b odd 2 1 inner 2880.2.h.e 8
4.b odd 2 1 inner 2880.2.h.e 8
8.b even 2 1 180.2.e.a 8
8.d odd 2 1 180.2.e.a 8
12.b even 2 1 inner 2880.2.h.e 8
24.f even 2 1 180.2.e.a 8
24.h odd 2 1 180.2.e.a 8
40.e odd 2 1 900.2.e.d 8
40.f even 2 1 900.2.e.d 8
40.i odd 4 1 900.2.h.b 8
40.i odd 4 1 900.2.h.c 8
40.k even 4 1 900.2.h.b 8
40.k even 4 1 900.2.h.c 8
120.i odd 2 1 900.2.e.d 8
120.m even 2 1 900.2.e.d 8
120.q odd 4 1 900.2.h.b 8
120.q odd 4 1 900.2.h.c 8
120.w even 4 1 900.2.h.b 8
120.w even 4 1 900.2.h.c 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
180.2.e.a 8 8.b even 2 1
180.2.e.a 8 8.d odd 2 1
180.2.e.a 8 24.f even 2 1
180.2.e.a 8 24.h odd 2 1
900.2.e.d 8 40.e odd 2 1
900.2.e.d 8 40.f even 2 1
900.2.e.d 8 120.i odd 2 1
900.2.e.d 8 120.m even 2 1
900.2.h.b 8 40.i odd 4 1
900.2.h.b 8 40.k even 4 1
900.2.h.b 8 120.q odd 4 1
900.2.h.b 8 120.w even 4 1
900.2.h.c 8 40.i odd 4 1
900.2.h.c 8 40.k even 4 1
900.2.h.c 8 120.q odd 4 1
900.2.h.c 8 120.w even 4 1
2880.2.h.e 8 1.a even 1 1 trivial
2880.2.h.e 8 3.b odd 2 1 inner
2880.2.h.e 8 4.b odd 2 1 inner
2880.2.h.e 8 12.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2880, [\chi])\):

\( T_{7}^{4} + 28T_{7}^{2} + 68 \) Copy content Toggle raw display
\( T_{11}^{4} - 20T_{11}^{2} + 68 \) Copy content Toggle raw display
\( T_{23}^{4} - 40T_{23}^{2} + 272 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{2} + 1)^{4} \) Copy content Toggle raw display
$7$ \( (T^{4} + 28 T^{2} + 68)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} - 20 T^{2} + 68)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 4 T + 2)^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + 16)^{4} \) Copy content Toggle raw display
$19$ \( (T^{4} + 80 T^{2} + 1088)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} - 40 T^{2} + 272)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 72 T^{2} + 784)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} + 40 T^{2} + 272)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} - 4 T - 46)^{4} \) Copy content Toggle raw display
$41$ \( (T^{2} + 2)^{4} \) Copy content Toggle raw display
$43$ \( (T^{4} + 80 T^{2} + 1088)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} - 112 T^{2} + 1088)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 144 T^{2} + 3136)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} - 180 T^{2} + 5508)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 4 T - 4)^{4} \) Copy content Toggle raw display
$67$ \( (T^{4} + 160 T^{2} + 4352)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} - 224 T^{2} + 4352)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} - 12 T + 28)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} + 232 T^{2} + 13328)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} - 112 T^{2} + 1088)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + 36 T^{2} + 196)^{2} \) Copy content Toggle raw display
$97$ \( (T^{2} - 12 T - 36)^{4} \) Copy content Toggle raw display
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