# Properties

 Label 4056.2.c.i Level $4056$ Weight $2$ Character orbit 4056.c Analytic conductor $32.387$ Analytic rank $0$ Dimension $2$ CM no Inner twists $2$

# Related objects

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [4056,2,Mod(337,4056)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(4056, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([0, 0, 0, 1]))

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

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

chi := DirichletCharacter("4056.337");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$4056 = 2^{3} \cdot 3 \cdot 13^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 4056.c (of order $$2$$, degree $$1$$, not minimal)

## 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: no Analytic conductor: $$32.3873230598$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{-1})$$ comment: defining polynomial  gp: f.mod \\ as an extension of the character field Defining polynomial: $$x^{2} + 1$$ x^2 + 1 Coefficient ring: $$\Z[a_1, \ldots, a_{31}]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 312) Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

## $q$-expansion

comment: q-expansion

sage: f.q_expansion() # note that sage often uses an isomorphic number field

gp: mfcoefs(f, 20)

Coefficients of the $$q$$-expansion are expressed in terms of $$i = \sqrt{-1}$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q + q^{3} + 3 i q^{5} + q^{9}+O(q^{10})$$ q + q^3 + 3*i * q^5 + q^9 $$q + q^{3} + 3 i q^{5} + q^{9} + 3 i q^{15} + q^{17} - 4 q^{23} - 4 q^{25} + q^{27} + 3 q^{29} + 8 i q^{31} + 5 i q^{37} + 3 i q^{41} - 4 q^{43} + 3 i q^{45} + 8 i q^{47} + 7 q^{49} + q^{51} - 13 q^{53} - 12 i q^{59} + 15 q^{61} + 12 i q^{67} - 4 q^{69} + 8 i q^{71} - 3 i q^{73} - 4 q^{75} - 4 q^{79} + q^{81} + 12 i q^{83} + 3 i q^{85} + 3 q^{87} - 10 i q^{89} + 8 i q^{93} + 2 i q^{97} +O(q^{100})$$ q + q^3 + 3*i * q^5 + q^9 + 3*i * q^15 + q^17 - 4 * q^23 - 4 * q^25 + q^27 + 3 * q^29 + 8*i * q^31 + 5*i * q^37 + 3*i * q^41 - 4 * q^43 + 3*i * q^45 + 8*i * q^47 + 7 * q^49 + q^51 - 13 * q^53 - 12*i * q^59 + 15 * q^61 + 12*i * q^67 - 4 * q^69 + 8*i * q^71 - 3*i * q^73 - 4 * q^75 - 4 * q^79 + q^81 + 12*i * q^83 + 3*i * q^85 + 3 * q^87 - 10*i * q^89 + 8*i * q^93 + 2*i * q^97 $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2 q + 2 q^{3} + 2 q^{9}+O(q^{10})$$ 2 * q + 2 * q^3 + 2 * q^9 $$2 q + 2 q^{3} + 2 q^{9} + 2 q^{17} - 8 q^{23} - 8 q^{25} + 2 q^{27} + 6 q^{29} - 8 q^{43} + 14 q^{49} + 2 q^{51} - 26 q^{53} + 30 q^{61} - 8 q^{69} - 8 q^{75} - 8 q^{79} + 2 q^{81} + 6 q^{87}+O(q^{100})$$ 2 * q + 2 * q^3 + 2 * q^9 + 2 * q^17 - 8 * q^23 - 8 * q^25 + 2 * q^27 + 6 * q^29 - 8 * q^43 + 14 * q^49 + 2 * q^51 - 26 * q^53 + 30 * q^61 - 8 * q^69 - 8 * q^75 - 8 * q^79 + 2 * q^81 + 6 * q^87

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/4056\mathbb{Z}\right)^\times$$.

 $$n$$ $$1015$$ $$2029$$ $$2705$$ $$3889$$ $$\chi(n)$$ $$1$$ $$1$$ $$1$$ $$-1$$

## 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   $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
337.1
 − 1.00000i 1.00000i
0 1.00000 0 3.00000i 0 0 0 1.00000 0
337.2 0 1.00000 0 3.00000i 0 0 0 1.00000 0
 $$n$$: e.g. 2-40 or 990-1000 Significant digits: Format: Complex embeddings Normalized embeddings Satake parameters Satake angles

## Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
13.b even 2 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 4056.2.c.i 2
13.b even 2 1 inner 4056.2.c.i 2
13.d odd 4 1 4056.2.a.l 1
13.d odd 4 1 4056.2.a.q 1
13.f odd 12 2 312.2.q.a 2
39.k even 12 2 936.2.t.a 2
52.f even 4 1 8112.2.a.b 1
52.f even 4 1 8112.2.a.n 1
52.l even 12 2 624.2.q.f 2
156.v odd 12 2 1872.2.t.b 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
312.2.q.a 2 13.f odd 12 2
624.2.q.f 2 52.l even 12 2
936.2.t.a 2 39.k even 12 2
1872.2.t.b 2 156.v odd 12 2
4056.2.a.l 1 13.d odd 4 1
4056.2.a.q 1 13.d odd 4 1
4056.2.c.i 2 1.a even 1 1 trivial
4056.2.c.i 2 13.b even 2 1 inner
8112.2.a.b 1 52.f even 4 1
8112.2.a.n 1 52.f even 4 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(4056, [\chi])$$:

 $$T_{5}^{2} + 9$$ T5^2 + 9 $$T_{7}$$ T7 $$T_{11}$$ T11

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{2}$$
$3$ $$(T - 1)^{2}$$
$5$ $$T^{2} + 9$$
$7$ $$T^{2}$$
$11$ $$T^{2}$$
$13$ $$T^{2}$$
$17$ $$(T - 1)^{2}$$
$19$ $$T^{2}$$
$23$ $$(T + 4)^{2}$$
$29$ $$(T - 3)^{2}$$
$31$ $$T^{2} + 64$$
$37$ $$T^{2} + 25$$
$41$ $$T^{2} + 9$$
$43$ $$(T + 4)^{2}$$
$47$ $$T^{2} + 64$$
$53$ $$(T + 13)^{2}$$
$59$ $$T^{2} + 144$$
$61$ $$(T - 15)^{2}$$
$67$ $$T^{2} + 144$$
$71$ $$T^{2} + 64$$
$73$ $$T^{2} + 9$$
$79$ $$(T + 4)^{2}$$
$83$ $$T^{2} + 144$$
$89$ $$T^{2} + 100$$
$97$ $$T^{2} + 4$$