# Properties

 Label 7440.2.a.g Level $7440$ Weight $2$ Character orbit 7440.a Self dual yes Analytic conductor $59.409$ 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] = [7440,2,Mod(1,7440)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(7440, 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("7440.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$7440 = 2^{4} \cdot 3 \cdot 5 \cdot 31$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 7440.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: $$59.4086991038$$ Analytic rank: $$1$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 930) 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)

 $$f(q)$$ $$=$$ $$q - q^{3} + q^{5} - 4 q^{7} + q^{9}+O(q^{10})$$ q - q^3 + q^5 - 4 * q^7 + q^9 $$q - q^{3} + q^{5} - 4 q^{7} + q^{9} - 2 q^{11} + 2 q^{13} - q^{15} + 4 q^{21} + 6 q^{23} + q^{25} - q^{27} - q^{31} + 2 q^{33} - 4 q^{35} - 2 q^{37} - 2 q^{39} - 10 q^{41} + 4 q^{43} + q^{45} - 4 q^{47} + 9 q^{49} + 6 q^{53} - 2 q^{55} + 4 q^{59} - 4 q^{63} + 2 q^{65} - 4 q^{67} - 6 q^{69} + 16 q^{71} + 4 q^{73} - q^{75} + 8 q^{77} - 4 q^{79} + q^{81} - 8 q^{83} + 6 q^{89} - 8 q^{91} + q^{93} + 14 q^{97} - 2 q^{99}+O(q^{100})$$ q - q^3 + q^5 - 4 * q^7 + q^9 - 2 * q^11 + 2 * q^13 - q^15 + 4 * q^21 + 6 * q^23 + q^25 - q^27 - q^31 + 2 * q^33 - 4 * q^35 - 2 * q^37 - 2 * q^39 - 10 * q^41 + 4 * q^43 + q^45 - 4 * q^47 + 9 * q^49 + 6 * q^53 - 2 * q^55 + 4 * q^59 - 4 * q^63 + 2 * q^65 - 4 * q^67 - 6 * q^69 + 16 * q^71 + 4 * q^73 - q^75 + 8 * q^77 - 4 * q^79 + q^81 - 8 * q^83 + 6 * q^89 - 8 * q^91 + q^93 + 14 * q^97 - 2 * q^99

## 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 −1.00000 0 1.00000 0 −4.00000 0 1.00000 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
$$2$$ $$-1$$
$$3$$ $$1$$
$$5$$ $$-1$$
$$31$$ $$1$$

## 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 7440.2.a.g 1
4.b odd 2 1 930.2.a.j 1
12.b even 2 1 2790.2.a.v 1
20.d odd 2 1 4650.2.a.x 1
20.e even 4 2 4650.2.d.h 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
930.2.a.j 1 4.b odd 2 1
2790.2.a.v 1 12.b even 2 1
4650.2.a.x 1 20.d odd 2 1
4650.2.d.h 2 20.e even 4 2
7440.2.a.g 1 1.a even 1 1 trivial

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(7440))$$:

 $$T_{7} + 4$$ T7 + 4 $$T_{11} + 2$$ T11 + 2 $$T_{13} - 2$$ T13 - 2 $$T_{17}$$ T17 $$T_{19}$$ T19

## Hecke characteristic polynomials

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