# Properties

 Label 7920.2.a.i Level $7920$ Weight $2$ Character orbit 7920.a Self dual yes Analytic conductor $63.242$ Analytic rank $1$ Dimension $1$ CM no Inner twists $1$

# Related objects

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [7920,2,Mod(1,7920)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(7920, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([0, 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("7920.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$7920 = 2^{4} \cdot 3^{2} \cdot 5 \cdot 11$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 7920.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: $$63.2415184009$$ Analytic rank: $$1$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 55) 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 $$q - q^{5} - q^{11} + 2 q^{13} - 6 q^{17} + 4 q^{19} + 4 q^{23} + q^{25} - 6 q^{29} + 8 q^{31} - 2 q^{37} - 2 q^{41} - 4 q^{43} - 12 q^{47} - 7 q^{49} + 2 q^{53} + q^{55} + 4 q^{59} - 10 q^{61} - 2 q^{65} + 16 q^{67} + 8 q^{71} + 14 q^{73} - 8 q^{79} - 4 q^{83} + 6 q^{85} - 10 q^{89} - 4 q^{95} + 10 q^{97}+O(q^{100})$$ q - q^5 - q^11 + 2 * q^13 - 6 * q^17 + 4 * q^19 + 4 * q^23 + q^25 - 6 * q^29 + 8 * q^31 - 2 * q^37 - 2 * q^41 - 4 * q^43 - 12 * q^47 - 7 * q^49 + 2 * q^53 + q^55 + 4 * q^59 - 10 * q^61 - 2 * q^65 + 16 * q^67 + 8 * q^71 + 14 * q^73 - 8 * q^79 - 4 * q^83 + 6 * q^85 - 10 * q^89 - 4 * q^95 + 10 * 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
$$2$$ $$-1$$
$$3$$ $$-1$$
$$5$$ $$1$$
$$11$$ $$1$$

## 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 7920.2.a.i 1
3.b odd 2 1 880.2.a.h 1
4.b odd 2 1 495.2.a.a 1
12.b even 2 1 55.2.a.a 1
15.d odd 2 1 4400.2.a.p 1
15.e even 4 2 4400.2.b.n 2
20.d odd 2 1 2475.2.a.i 1
20.e even 4 2 2475.2.c.f 2
24.f even 2 1 3520.2.a.p 1
24.h odd 2 1 3520.2.a.n 1
33.d even 2 1 9680.2.a.r 1
44.c even 2 1 5445.2.a.i 1
60.h even 2 1 275.2.a.a 1
60.l odd 4 2 275.2.b.b 2
84.h odd 2 1 2695.2.a.c 1
132.d odd 2 1 605.2.a.b 1
132.n odd 10 4 605.2.g.c 4
132.o even 10 4 605.2.g.a 4
156.h even 2 1 9295.2.a.b 1
660.g odd 2 1 3025.2.a.f 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
55.2.a.a 1 12.b even 2 1
275.2.a.a 1 60.h even 2 1
275.2.b.b 2 60.l odd 4 2
495.2.a.a 1 4.b odd 2 1
605.2.a.b 1 132.d odd 2 1
605.2.g.a 4 132.o even 10 4
605.2.g.c 4 132.n odd 10 4
880.2.a.h 1 3.b odd 2 1
2475.2.a.i 1 20.d odd 2 1
2475.2.c.f 2 20.e even 4 2
2695.2.a.c 1 84.h odd 2 1
3025.2.a.f 1 660.g odd 2 1
3520.2.a.n 1 24.h odd 2 1
3520.2.a.p 1 24.f even 2 1
4400.2.a.p 1 15.d odd 2 1
4400.2.b.n 2 15.e even 4 2
5445.2.a.i 1 44.c even 2 1
7920.2.a.i 1 1.a even 1 1 trivial
9295.2.a.b 1 156.h even 2 1
9680.2.a.r 1 33.d even 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(7920))$$:

 $$T_{7}$$ T7 $$T_{13} - 2$$ T13 - 2 $$T_{17} + 6$$ T17 + 6 $$T_{19} - 4$$ T19 - 4 $$T_{23} - 4$$ T23 - 4 $$T_{29} + 6$$ T29 + 6

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T$$
$3$ $$T$$
$5$ $$T + 1$$
$7$ $$T$$
$11$ $$T + 1$$
$13$ $$T - 2$$
$17$ $$T + 6$$
$19$ $$T - 4$$
$23$ $$T - 4$$
$29$ $$T + 6$$
$31$ $$T - 8$$
$37$ $$T + 2$$
$41$ $$T + 2$$
$43$ $$T + 4$$
$47$ $$T + 12$$
$53$ $$T - 2$$
$59$ $$T - 4$$
$61$ $$T + 10$$
$67$ $$T - 16$$
$71$ $$T - 8$$
$73$ $$T - 14$$
$79$ $$T + 8$$
$83$ $$T + 4$$
$89$ $$T + 10$$
$97$ $$T - 10$$