Properties

 Label 9408.2.a.cx Level $9408$ Weight $2$ Character orbit 9408.a Self dual yes Analytic conductor $75.123$ 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] = [9408,2,Mod(1,9408)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(9408, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([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("9408.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$9408 = 2^{6} \cdot 3 \cdot 7^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 9408.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: $$75.1232582216$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 84) 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)

 $$f(q)$$ $$=$$ $$q + q^{3} + 2 q^{5} + q^{9}+O(q^{10})$$ q + q^3 + 2 * q^5 + q^9 $$q + q^{3} + 2 q^{5} + q^{9} - 2 q^{11} + 3 q^{13} + 2 q^{15} + 8 q^{17} + q^{19} + 8 q^{23} - q^{25} + q^{27} - 4 q^{29} + 3 q^{31} - 2 q^{33} + q^{37} + 3 q^{39} + 6 q^{41} - 11 q^{43} + 2 q^{45} + 6 q^{47} + 8 q^{51} + 12 q^{53} - 4 q^{55} + q^{57} - 4 q^{59} + 6 q^{61} + 6 q^{65} - 13 q^{67} + 8 q^{69} - 10 q^{71} - 11 q^{73} - q^{75} - 3 q^{79} + q^{81} - 2 q^{83} + 16 q^{85} - 4 q^{87} + 3 q^{93} + 2 q^{95} + 10 q^{97} - 2 q^{99}+O(q^{100})$$ q + q^3 + 2 * q^5 + q^9 - 2 * q^11 + 3 * q^13 + 2 * q^15 + 8 * q^17 + q^19 + 8 * q^23 - q^25 + q^27 - 4 * q^29 + 3 * q^31 - 2 * q^33 + q^37 + 3 * q^39 + 6 * q^41 - 11 * q^43 + 2 * q^45 + 6 * q^47 + 8 * q^51 + 12 * q^53 - 4 * q^55 + q^57 - 4 * q^59 + 6 * q^61 + 6 * q^65 - 13 * q^67 + 8 * q^69 - 10 * q^71 - 11 * q^73 - q^75 - 3 * q^79 + q^81 - 2 * q^83 + 16 * q^85 - 4 * q^87 + 3 * q^93 + 2 * q^95 + 10 * 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 2.00000 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

Atkin-Lehner signs

$$p$$ Sign
$$2$$ $$+1$$
$$3$$ $$-1$$
$$7$$ $$+1$$

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 9408.2.a.cx 1
4.b odd 2 1 9408.2.a.bi 1
7.b odd 2 1 9408.2.a.i 1
7.c even 3 2 1344.2.q.b 2
8.b even 2 1 588.2.a.a 1
8.d odd 2 1 2352.2.a.o 1
24.f even 2 1 7056.2.a.bs 1
24.h odd 2 1 1764.2.a.h 1
28.d even 2 1 9408.2.a.bx 1
28.g odd 6 2 1344.2.q.n 2
56.e even 2 1 2352.2.a.k 1
56.h odd 2 1 588.2.a.f 1
56.j odd 6 2 588.2.i.b 2
56.k odd 6 2 336.2.q.c 2
56.m even 6 2 2352.2.q.q 2
56.p even 6 2 84.2.i.a 2
168.e odd 2 1 7056.2.a.o 1
168.i even 2 1 1764.2.a.c 1
168.s odd 6 2 252.2.k.a 2
168.v even 6 2 1008.2.s.c 2
168.ba even 6 2 1764.2.k.j 2
280.bf even 6 2 2100.2.q.b 2
280.bt odd 12 4 2100.2.bc.a 4
504.w even 6 2 2268.2.l.b 2
504.bi odd 6 2 2268.2.i.b 2
504.cq even 6 2 2268.2.i.g 2
504.db odd 6 2 2268.2.l.g 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
84.2.i.a 2 56.p even 6 2
252.2.k.a 2 168.s odd 6 2
336.2.q.c 2 56.k odd 6 2
588.2.a.a 1 8.b even 2 1
588.2.a.f 1 56.h odd 2 1
588.2.i.b 2 56.j odd 6 2
1008.2.s.c 2 168.v even 6 2
1344.2.q.b 2 7.c even 3 2
1344.2.q.n 2 28.g odd 6 2
1764.2.a.c 1 168.i even 2 1
1764.2.a.h 1 24.h odd 2 1
1764.2.k.j 2 168.ba even 6 2
2100.2.q.b 2 280.bf even 6 2
2100.2.bc.a 4 280.bt odd 12 4
2268.2.i.b 2 504.bi odd 6 2
2268.2.i.g 2 504.cq even 6 2
2268.2.l.b 2 504.w even 6 2
2268.2.l.g 2 504.db odd 6 2
2352.2.a.k 1 56.e even 2 1
2352.2.a.o 1 8.d odd 2 1
2352.2.q.q 2 56.m even 6 2
7056.2.a.o 1 168.e odd 2 1
7056.2.a.bs 1 24.f even 2 1
9408.2.a.i 1 7.b odd 2 1
9408.2.a.bi 1 4.b odd 2 1
9408.2.a.bx 1 28.d even 2 1
9408.2.a.cx 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 $$S_{2}^{\mathrm{new}}(\Gamma_0(9408))$$:

 $$T_{5} - 2$$ T5 - 2 $$T_{11} + 2$$ T11 + 2 $$T_{13} - 3$$ T13 - 3 $$T_{17} - 8$$ T17 - 8 $$T_{19} - 1$$ T19 - 1 $$T_{31} - 3$$ T31 - 3

Hecke characteristic polynomials

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