# Properties

 Label 1386.2.a.j Level $1386$ Weight $2$ Character orbit 1386.a Self dual yes Analytic conductor $11.067$ Analytic rank $0$ 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] = [1386,2,Mod(1,1386)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(1386, 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("1386.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$1386 = 2 \cdot 3^{2} \cdot 7 \cdot 11$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 1386.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: $$11.0672657201$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 462) 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)

 $$f(q)$$ $$=$$ $$q + q^{2} + q^{4} - q^{7} + q^{8}+O(q^{10})$$ q + q^2 + q^4 - q^7 + q^8 $$q + q^{2} + q^{4} - q^{7} + q^{8} + q^{11} + 6 q^{13} - q^{14} + q^{16} - 4 q^{17} + 6 q^{19} + q^{22} + 4 q^{23} - 5 q^{25} + 6 q^{26} - q^{28} - 6 q^{29} - 2 q^{31} + q^{32} - 4 q^{34} + 10 q^{37} + 6 q^{38} + 4 q^{41} + 8 q^{43} + q^{44} + 4 q^{46} + 6 q^{47} + q^{49} - 5 q^{50} + 6 q^{52} + 10 q^{53} - q^{56} - 6 q^{58} - 2 q^{61} - 2 q^{62} + q^{64} - 4 q^{67} - 4 q^{68} - 16 q^{71} + 12 q^{73} + 10 q^{74} + 6 q^{76} - q^{77} - 16 q^{79} + 4 q^{82} + 2 q^{83} + 8 q^{86} + q^{88} + 6 q^{89} - 6 q^{91} + 4 q^{92} + 6 q^{94} - 6 q^{97} + q^{98}+O(q^{100})$$ q + q^2 + q^4 - q^7 + q^8 + q^11 + 6 * q^13 - q^14 + q^16 - 4 * q^17 + 6 * q^19 + q^22 + 4 * q^23 - 5 * q^25 + 6 * q^26 - q^28 - 6 * q^29 - 2 * q^31 + q^32 - 4 * q^34 + 10 * q^37 + 6 * q^38 + 4 * q^41 + 8 * q^43 + q^44 + 4 * q^46 + 6 * q^47 + q^49 - 5 * q^50 + 6 * q^52 + 10 * q^53 - q^56 - 6 * q^58 - 2 * q^61 - 2 * q^62 + q^64 - 4 * q^67 - 4 * q^68 - 16 * q^71 + 12 * q^73 + 10 * q^74 + 6 * q^76 - q^77 - 16 * q^79 + 4 * q^82 + 2 * q^83 + 8 * q^86 + q^88 + 6 * q^89 - 6 * q^91 + 4 * q^92 + 6 * q^94 - 6 * q^97 + q^98

## 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 −1.00000 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 1386.2.a.j 1
3.b odd 2 1 462.2.a.d 1
7.b odd 2 1 9702.2.a.bp 1
12.b even 2 1 3696.2.a.j 1
21.c even 2 1 3234.2.a.b 1
33.d even 2 1 5082.2.a.ba 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
462.2.a.d 1 3.b odd 2 1
1386.2.a.j 1 1.a even 1 1 trivial
3234.2.a.b 1 21.c even 2 1
3696.2.a.j 1 12.b even 2 1
5082.2.a.ba 1 33.d even 2 1
9702.2.a.bp 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 $$S_{2}^{\mathrm{new}}(\Gamma_0(1386))$$:

 $$T_{5}$$ T5 $$T_{13} - 6$$ T13 - 6 $$T_{17} + 4$$ T17 + 4

## Hecke characteristic polynomials

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