Properties

 Label 1470.2.i.b Level $1470$ Weight $2$ Character orbit 1470.i Analytic conductor $11.738$ 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] = [1470,2,Mod(361,1470)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(1470, base_ring=CyclotomicField(6))

chi = DirichletCharacter(H, H._module([0, 0, 4]))

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

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

chi := DirichletCharacter("1470.361");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$1470 = 2 \cdot 3 \cdot 5 \cdot 7^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 1470.i (of order $$3$$, degree $$2$$, 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: $$11.7380090971$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{-3})$$ comment: defining polynomial  gp: f.mod \\ as an extension of the character field Defining polynomial: $$x^{2} - x + 1$$ x^2 - x + 1 Coefficient ring: $$\Z[a_1, a_2]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 210) Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 a primitive root of unity $$\zeta_{6}$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q - \zeta_{6} q^{2} + (\zeta_{6} - 1) q^{3} + (\zeta_{6} - 1) q^{4} + \zeta_{6} q^{5} + q^{6} + q^{8} - \zeta_{6} q^{9} +O(q^{10})$$ q - z * q^2 + (z - 1) * q^3 + (z - 1) * q^4 + z * q^5 + q^6 + q^8 - z * q^9 $$q - \zeta_{6} q^{2} + (\zeta_{6} - 1) q^{3} + (\zeta_{6} - 1) q^{4} + \zeta_{6} q^{5} + q^{6} + q^{8} - \zeta_{6} q^{9} + ( - \zeta_{6} + 1) q^{10} + (4 \zeta_{6} - 4) q^{11} - \zeta_{6} q^{12} + 2 q^{13} - q^{15} - \zeta_{6} q^{16} + ( - 2 \zeta_{6} + 2) q^{17} + (\zeta_{6} - 1) q^{18} - 4 \zeta_{6} q^{19} - q^{20} + 4 q^{22} + 8 \zeta_{6} q^{23} + (\zeta_{6} - 1) q^{24} + (\zeta_{6} - 1) q^{25} - 2 \zeta_{6} q^{26} + q^{27} + 6 q^{29} + \zeta_{6} q^{30} + (8 \zeta_{6} - 8) q^{31} + (\zeta_{6} - 1) q^{32} - 4 \zeta_{6} q^{33} - 2 q^{34} + q^{36} + 2 \zeta_{6} q^{37} + (4 \zeta_{6} - 4) q^{38} + (2 \zeta_{6} - 2) q^{39} + \zeta_{6} q^{40} - 2 q^{41} - 12 q^{43} - 4 \zeta_{6} q^{44} + ( - \zeta_{6} + 1) q^{45} + ( - 8 \zeta_{6} + 8) q^{46} - 8 \zeta_{6} q^{47} + q^{48} + q^{50} + 2 \zeta_{6} q^{51} + (2 \zeta_{6} - 2) q^{52} + (6 \zeta_{6} - 6) q^{53} - \zeta_{6} q^{54} - 4 q^{55} + 4 q^{57} - 6 \zeta_{6} q^{58} + ( - 4 \zeta_{6} + 4) q^{59} + ( - \zeta_{6} + 1) q^{60} - 2 \zeta_{6} q^{61} + 8 q^{62} + q^{64} + 2 \zeta_{6} q^{65} + (4 \zeta_{6} - 4) q^{66} + (12 \zeta_{6} - 12) q^{67} + 2 \zeta_{6} q^{68} - 8 q^{69} + 8 q^{71} - \zeta_{6} q^{72} + (14 \zeta_{6} - 14) q^{73} + ( - 2 \zeta_{6} + 2) q^{74} - \zeta_{6} q^{75} + 4 q^{76} + 2 q^{78} + ( - \zeta_{6} + 1) q^{80} + (\zeta_{6} - 1) q^{81} + 2 \zeta_{6} q^{82} - 12 q^{83} + 2 q^{85} + 12 \zeta_{6} q^{86} + (6 \zeta_{6} - 6) q^{87} + (4 \zeta_{6} - 4) q^{88} + 2 \zeta_{6} q^{89} - q^{90} - 8 q^{92} - 8 \zeta_{6} q^{93} + (8 \zeta_{6} - 8) q^{94} + ( - 4 \zeta_{6} + 4) q^{95} - \zeta_{6} q^{96} - 10 q^{97} + 4 q^{99} +O(q^{100})$$ q - z * q^2 + (z - 1) * q^3 + (z - 1) * q^4 + z * q^5 + q^6 + q^8 - z * q^9 + (-z + 1) * q^10 + (4*z - 4) * q^11 - z * q^12 + 2 * q^13 - q^15 - z * q^16 + (-2*z + 2) * q^17 + (z - 1) * q^18 - 4*z * q^19 - q^20 + 4 * q^22 + 8*z * q^23 + (z - 1) * q^24 + (z - 1) * q^25 - 2*z * q^26 + q^27 + 6 * q^29 + z * q^30 + (8*z - 8) * q^31 + (z - 1) * q^32 - 4*z * q^33 - 2 * q^34 + q^36 + 2*z * q^37 + (4*z - 4) * q^38 + (2*z - 2) * q^39 + z * q^40 - 2 * q^41 - 12 * q^43 - 4*z * q^44 + (-z + 1) * q^45 + (-8*z + 8) * q^46 - 8*z * q^47 + q^48 + q^50 + 2*z * q^51 + (2*z - 2) * q^52 + (6*z - 6) * q^53 - z * q^54 - 4 * q^55 + 4 * q^57 - 6*z * q^58 + (-4*z + 4) * q^59 + (-z + 1) * q^60 - 2*z * q^61 + 8 * q^62 + q^64 + 2*z * q^65 + (4*z - 4) * q^66 + (12*z - 12) * q^67 + 2*z * q^68 - 8 * q^69 + 8 * q^71 - z * q^72 + (14*z - 14) * q^73 + (-2*z + 2) * q^74 - z * q^75 + 4 * q^76 + 2 * q^78 + (-z + 1) * q^80 + (z - 1) * q^81 + 2*z * q^82 - 12 * q^83 + 2 * q^85 + 12*z * q^86 + (6*z - 6) * q^87 + (4*z - 4) * q^88 + 2*z * q^89 - q^90 - 8 * q^92 - 8*z * q^93 + (8*z - 8) * q^94 + (-4*z + 4) * q^95 - z * q^96 - 10 * q^97 + 4 * q^99 $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2 q - q^{2} - q^{3} - q^{4} + q^{5} + 2 q^{6} + 2 q^{8} - q^{9}+O(q^{10})$$ 2 * q - q^2 - q^3 - q^4 + q^5 + 2 * q^6 + 2 * q^8 - q^9 $$2 q - q^{2} - q^{3} - q^{4} + q^{5} + 2 q^{6} + 2 q^{8} - q^{9} + q^{10} - 4 q^{11} - q^{12} + 4 q^{13} - 2 q^{15} - q^{16} + 2 q^{17} - q^{18} - 4 q^{19} - 2 q^{20} + 8 q^{22} + 8 q^{23} - q^{24} - q^{25} - 2 q^{26} + 2 q^{27} + 12 q^{29} + q^{30} - 8 q^{31} - q^{32} - 4 q^{33} - 4 q^{34} + 2 q^{36} + 2 q^{37} - 4 q^{38} - 2 q^{39} + q^{40} - 4 q^{41} - 24 q^{43} - 4 q^{44} + q^{45} + 8 q^{46} - 8 q^{47} + 2 q^{48} + 2 q^{50} + 2 q^{51} - 2 q^{52} - 6 q^{53} - q^{54} - 8 q^{55} + 8 q^{57} - 6 q^{58} + 4 q^{59} + q^{60} - 2 q^{61} + 16 q^{62} + 2 q^{64} + 2 q^{65} - 4 q^{66} - 12 q^{67} + 2 q^{68} - 16 q^{69} + 16 q^{71} - q^{72} - 14 q^{73} + 2 q^{74} - q^{75} + 8 q^{76} + 4 q^{78} + q^{80} - q^{81} + 2 q^{82} - 24 q^{83} + 4 q^{85} + 12 q^{86} - 6 q^{87} - 4 q^{88} + 2 q^{89} - 2 q^{90} - 16 q^{92} - 8 q^{93} - 8 q^{94} + 4 q^{95} - q^{96} - 20 q^{97} + 8 q^{99}+O(q^{100})$$ 2 * q - q^2 - q^3 - q^4 + q^5 + 2 * q^6 + 2 * q^8 - q^9 + q^10 - 4 * q^11 - q^12 + 4 * q^13 - 2 * q^15 - q^16 + 2 * q^17 - q^18 - 4 * q^19 - 2 * q^20 + 8 * q^22 + 8 * q^23 - q^24 - q^25 - 2 * q^26 + 2 * q^27 + 12 * q^29 + q^30 - 8 * q^31 - q^32 - 4 * q^33 - 4 * q^34 + 2 * q^36 + 2 * q^37 - 4 * q^38 - 2 * q^39 + q^40 - 4 * q^41 - 24 * q^43 - 4 * q^44 + q^45 + 8 * q^46 - 8 * q^47 + 2 * q^48 + 2 * q^50 + 2 * q^51 - 2 * q^52 - 6 * q^53 - q^54 - 8 * q^55 + 8 * q^57 - 6 * q^58 + 4 * q^59 + q^60 - 2 * q^61 + 16 * q^62 + 2 * q^64 + 2 * q^65 - 4 * q^66 - 12 * q^67 + 2 * q^68 - 16 * q^69 + 16 * q^71 - q^72 - 14 * q^73 + 2 * q^74 - q^75 + 8 * q^76 + 4 * q^78 + q^80 - q^81 + 2 * q^82 - 24 * q^83 + 4 * q^85 + 12 * q^86 - 6 * q^87 - 4 * q^88 + 2 * q^89 - 2 * q^90 - 16 * q^92 - 8 * q^93 - 8 * q^94 + 4 * q^95 - q^96 - 20 * q^97 + 8 * q^99

Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/1470\mathbb{Z}\right)^\times$$.

 $$n$$ $$491$$ $$1081$$ $$1177$$ $$\chi(n)$$ $$1$$ $$-\zeta_{6}$$ $$1$$

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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
361.1
 0.5 + 0.866025i 0.5 − 0.866025i
−0.500000 0.866025i −0.500000 + 0.866025i −0.500000 + 0.866025i 0.500000 + 0.866025i 1.00000 0 1.00000 −0.500000 0.866025i 0.500000 0.866025i
961.1 −0.500000 + 0.866025i −0.500000 0.866025i −0.500000 0.866025i 0.500000 0.866025i 1.00000 0 1.00000 −0.500000 + 0.866025i 0.500000 + 0.866025i
 $$n$$: 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
7.c even 3 1 inner

Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1470.2.i.b 2
7.b odd 2 1 1470.2.i.f 2
7.c even 3 1 1470.2.a.q 1
7.c even 3 1 inner 1470.2.i.b 2
7.d odd 6 1 210.2.a.c 1
7.d odd 6 1 1470.2.i.f 2
21.g even 6 1 630.2.a.b 1
21.h odd 6 1 4410.2.a.l 1
28.f even 6 1 1680.2.a.q 1
35.i odd 6 1 1050.2.a.h 1
35.j even 6 1 7350.2.a.p 1
35.k even 12 2 1050.2.g.d 2
56.j odd 6 1 6720.2.a.bp 1
56.m even 6 1 6720.2.a.k 1
84.j odd 6 1 5040.2.a.i 1
105.p even 6 1 3150.2.a.w 1
105.w odd 12 2 3150.2.g.e 2
140.s even 6 1 8400.2.a.p 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
210.2.a.c 1 7.d odd 6 1
630.2.a.b 1 21.g even 6 1
1050.2.a.h 1 35.i odd 6 1
1050.2.g.d 2 35.k even 12 2
1470.2.a.q 1 7.c even 3 1
1470.2.i.b 2 1.a even 1 1 trivial
1470.2.i.b 2 7.c even 3 1 inner
1470.2.i.f 2 7.b odd 2 1
1470.2.i.f 2 7.d odd 6 1
1680.2.a.q 1 28.f even 6 1
3150.2.a.w 1 105.p even 6 1
3150.2.g.e 2 105.w odd 12 2
4410.2.a.l 1 21.h odd 6 1
5040.2.a.i 1 84.j odd 6 1
6720.2.a.k 1 56.m even 6 1
6720.2.a.bp 1 56.j odd 6 1
7350.2.a.p 1 35.j even 6 1
8400.2.a.p 1 140.s even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(1470, [\chi])$$:

 $$T_{11}^{2} + 4T_{11} + 16$$ T11^2 + 4*T11 + 16 $$T_{13} - 2$$ T13 - 2 $$T_{17}^{2} - 2T_{17} + 4$$ T17^2 - 2*T17 + 4 $$T_{19}^{2} + 4T_{19} + 16$$ T19^2 + 4*T19 + 16 $$T_{31}^{2} + 8T_{31} + 64$$ T31^2 + 8*T31 + 64

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{2} + T + 1$$
$3$ $$T^{2} + T + 1$$
$5$ $$T^{2} - T + 1$$
$7$ $$T^{2}$$
$11$ $$T^{2} + 4T + 16$$
$13$ $$(T - 2)^{2}$$
$17$ $$T^{2} - 2T + 4$$
$19$ $$T^{2} + 4T + 16$$
$23$ $$T^{2} - 8T + 64$$
$29$ $$(T - 6)^{2}$$
$31$ $$T^{2} + 8T + 64$$
$37$ $$T^{2} - 2T + 4$$
$41$ $$(T + 2)^{2}$$
$43$ $$(T + 12)^{2}$$
$47$ $$T^{2} + 8T + 64$$
$53$ $$T^{2} + 6T + 36$$
$59$ $$T^{2} - 4T + 16$$
$61$ $$T^{2} + 2T + 4$$
$67$ $$T^{2} + 12T + 144$$
$71$ $$(T - 8)^{2}$$
$73$ $$T^{2} + 14T + 196$$
$79$ $$T^{2}$$
$83$ $$(T + 12)^{2}$$
$89$ $$T^{2} - 2T + 4$$
$97$ $$(T + 10)^{2}$$