# Properties

 Label 8820.2.a.g Level $8820$ Weight $2$ Character orbit 8820.a Self dual yes Analytic conductor $70.428$ Analytic rank $0$ Dimension $1$ CM no Inner twists $1$

# Learn more

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [8820,2,Mod(1,8820)]

mf = mfinit([N,k,chi],0)

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(8820, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))

N = Newforms(chi, 2, names="a")

//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code

chi := DirichletCharacter("8820.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$8820 = 2^{2} \cdot 3^{2} \cdot 5 \cdot 7^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 8820.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: $$70.4280545828$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 20) 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)

 $$f(q)$$ $$=$$ $$q - q^{5}+O(q^{10})$$ q - q^5 $$q - q^{5} - 2 q^{13} - 6 q^{17} + 4 q^{19} - 6 q^{23} + q^{25} - 6 q^{29} + 4 q^{31} + 2 q^{37} + 6 q^{41} - 10 q^{43} - 6 q^{47} + 6 q^{53} + 12 q^{59} - 2 q^{61} + 2 q^{65} + 2 q^{67} + 12 q^{71} - 2 q^{73} + 8 q^{79} + 6 q^{83} + 6 q^{85} - 6 q^{89} - 4 q^{95} - 2 q^{97}+O(q^{100})$$ q - q^5 - 2 * q^13 - 6 * q^17 + 4 * q^19 - 6 * q^23 + q^25 - 6 * q^29 + 4 * q^31 + 2 * q^37 + 6 * q^41 - 10 * q^43 - 6 * q^47 + 6 * q^53 + 12 * q^59 - 2 * q^61 + 2 * q^65 + 2 * q^67 + 12 * q^71 - 2 * q^73 + 8 * q^79 + 6 * q^83 + 6 * q^85 - 6 * q^89 - 4 * q^95 - 2 * q^97

## 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
0 0 0 −1.00000 0 0 0 0 0
 $$n$$: e.g. 2-40 or 990-1000 Significant digits: Format: Complex embeddings Normalized embeddings Satake parameters Satake angles

## Atkin-Lehner signs

$$p$$ Sign
$$2$$ $$-1$$
$$3$$ $$-1$$
$$5$$ $$1$$
$$7$$ $$-1$$

## 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 8820.2.a.g 1
3.b odd 2 1 980.2.a.h 1
7.b odd 2 1 180.2.a.a 1
12.b even 2 1 3920.2.a.h 1
15.d odd 2 1 4900.2.a.e 1
15.e even 4 2 4900.2.e.f 2
21.c even 2 1 20.2.a.a 1
21.g even 6 2 980.2.i.i 2
21.h odd 6 2 980.2.i.c 2
28.d even 2 1 720.2.a.h 1
35.c odd 2 1 900.2.a.b 1
35.f even 4 2 900.2.d.c 2
56.e even 2 1 2880.2.a.f 1
56.h odd 2 1 2880.2.a.m 1
63.l odd 6 2 1620.2.i.b 2
63.o even 6 2 1620.2.i.h 2
84.h odd 2 1 80.2.a.b 1
105.g even 2 1 100.2.a.a 1
105.k odd 4 2 100.2.c.a 2
140.c even 2 1 3600.2.a.be 1
140.j odd 4 2 3600.2.f.j 2
168.e odd 2 1 320.2.a.a 1
168.i even 2 1 320.2.a.f 1
231.h odd 2 1 2420.2.a.a 1
273.g even 2 1 3380.2.a.c 1
273.o odd 4 2 3380.2.f.b 2
336.v odd 4 2 1280.2.d.g 2
336.y even 4 2 1280.2.d.c 2
357.c even 2 1 5780.2.a.f 1
357.l even 4 2 5780.2.c.a 2
399.h odd 2 1 7220.2.a.f 1
420.o odd 2 1 400.2.a.c 1
420.w even 4 2 400.2.c.b 2
840.b odd 2 1 1600.2.a.w 1
840.u even 2 1 1600.2.a.c 1
840.bm even 4 2 1600.2.c.e 2
840.bp odd 4 2 1600.2.c.d 2
924.n even 2 1 9680.2.a.ba 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
20.2.a.a 1 21.c even 2 1
80.2.a.b 1 84.h odd 2 1
100.2.a.a 1 105.g even 2 1
100.2.c.a 2 105.k odd 4 2
180.2.a.a 1 7.b odd 2 1
320.2.a.a 1 168.e odd 2 1
320.2.a.f 1 168.i even 2 1
400.2.a.c 1 420.o odd 2 1
400.2.c.b 2 420.w even 4 2
720.2.a.h 1 28.d even 2 1
900.2.a.b 1 35.c odd 2 1
900.2.d.c 2 35.f even 4 2
980.2.a.h 1 3.b odd 2 1
980.2.i.c 2 21.h odd 6 2
980.2.i.i 2 21.g even 6 2
1280.2.d.c 2 336.y even 4 2
1280.2.d.g 2 336.v odd 4 2
1600.2.a.c 1 840.u even 2 1
1600.2.a.w 1 840.b odd 2 1
1600.2.c.d 2 840.bp odd 4 2
1600.2.c.e 2 840.bm even 4 2
1620.2.i.b 2 63.l odd 6 2
1620.2.i.h 2 63.o even 6 2
2420.2.a.a 1 231.h odd 2 1
2880.2.a.f 1 56.e even 2 1
2880.2.a.m 1 56.h odd 2 1
3380.2.a.c 1 273.g even 2 1
3380.2.f.b 2 273.o odd 4 2
3600.2.a.be 1 140.c even 2 1
3600.2.f.j 2 140.j odd 4 2
3920.2.a.h 1 12.b even 2 1
4900.2.a.e 1 15.d odd 2 1
4900.2.e.f 2 15.e even 4 2
5780.2.a.f 1 357.c even 2 1
5780.2.c.a 2 357.l even 4 2
7220.2.a.f 1 399.h odd 2 1
8820.2.a.g 1 1.a even 1 1 trivial
9680.2.a.ba 1 924.n even 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(8820))$$:

 $$T_{11}$$ T11 $$T_{13} + 2$$ T13 + 2 $$T_{17} + 6$$ T17 + 6 $$T_{31} - 4$$ T31 - 4

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T$$
$3$ $$T$$
$5$ $$T + 1$$
$7$ $$T$$
$11$ $$T$$
$13$ $$T + 2$$
$17$ $$T + 6$$
$19$ $$T - 4$$
$23$ $$T + 6$$
$29$ $$T + 6$$
$31$ $$T - 4$$
$37$ $$T - 2$$
$41$ $$T - 6$$
$43$ $$T + 10$$
$47$ $$T + 6$$
$53$ $$T - 6$$
$59$ $$T - 12$$
$61$ $$T + 2$$
$67$ $$T - 2$$
$71$ $$T - 12$$
$73$ $$T + 2$$
$79$ $$T - 8$$
$83$ $$T - 6$$
$89$ $$T + 6$$
$97$ $$T + 2$$
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