# Properties

 Label 9702.2.a.bk Level $9702$ Weight $2$ Character orbit 9702.a Self dual yes Analytic conductor $77.471$ 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] = [9702,2,Mod(1,9702)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(9702, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([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("9702.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$9702 = 2 \cdot 3^{2} \cdot 7^{2} \cdot 11$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 9702.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: $$77.4708600410$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 3234) 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)

 $$f(q)$$ $$=$$ $$q + q^{2} + q^{4} + q^{8}+O(q^{10})$$ q + q^2 + q^4 + q^8 $$q + q^{2} + q^{4} + q^{8} - q^{11} - 4 q^{13} + q^{16} - 4 q^{17} - q^{22} - 5 q^{25} - 4 q^{26} - 2 q^{29} - 4 q^{31} + q^{32} - 4 q^{34} + 10 q^{37} + 12 q^{41} + 4 q^{43} - q^{44} - 4 q^{47} - 5 q^{50} - 4 q^{52} + 10 q^{53} - 2 q^{58} + 4 q^{59} + 4 q^{61} - 4 q^{62} + q^{64} + 4 q^{67} - 4 q^{68} + 8 q^{71} + 4 q^{73} + 10 q^{74} + 8 q^{79} + 12 q^{82} + 16 q^{83} + 4 q^{86} - q^{88} - 8 q^{89} - 4 q^{94} - 8 q^{97}+O(q^{100})$$ q + q^2 + q^4 + q^8 - q^11 - 4 * q^13 + q^16 - 4 * q^17 - q^22 - 5 * q^25 - 4 * q^26 - 2 * q^29 - 4 * q^31 + q^32 - 4 * q^34 + 10 * q^37 + 12 * q^41 + 4 * q^43 - q^44 - 4 * q^47 - 5 * q^50 - 4 * q^52 + 10 * q^53 - 2 * q^58 + 4 * q^59 + 4 * q^61 - 4 * q^62 + q^64 + 4 * q^67 - 4 * q^68 + 8 * q^71 + 4 * q^73 + 10 * q^74 + 8 * q^79 + 12 * q^82 + 16 * q^83 + 4 * q^86 - q^88 - 8 * q^89 - 4 * q^94 - 8 * 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
1.00000 0 1.00000 0 0 0 1.00000 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
$$2$$ $$-1$$
$$3$$ $$-1$$
$$7$$ $$-1$$
$$11$$ $$+1$$

## 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 9702.2.a.bk 1
3.b odd 2 1 3234.2.a.e 1
7.b odd 2 1 9702.2.a.bo 1
21.c even 2 1 3234.2.a.m yes 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3234.2.a.e 1 3.b odd 2 1
3234.2.a.m yes 1 21.c even 2 1
9702.2.a.bk 1 1.a even 1 1 trivial
9702.2.a.bo 1 7.b odd 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(9702))$$:

 $$T_{5}$$ T5 $$T_{13} + 4$$ T13 + 4 $$T_{17} + 4$$ T17 + 4 $$T_{19}$$ T19 $$T_{23}$$ T23 $$T_{29} + 2$$ T29 + 2

## Hecke characteristic polynomials

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