# Properties

 Label 448.2.a.c Level $448$ Weight $2$ Character orbit 448.a Self dual yes Analytic conductor $3.577$ 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] = [448,2,Mod(1,448)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(448, 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("448.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$448 = 2^{6} \cdot 7$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 448.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: $$3.57729801055$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 56) 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)

 $$f(q)$$ $$=$$ $$q - 2 q^{3} + 4 q^{5} + q^{7} + q^{9}+O(q^{10})$$ q - 2 * q^3 + 4 * q^5 + q^7 + q^9 $$q - 2 q^{3} + 4 q^{5} + q^{7} + q^{9} - 8 q^{15} - 2 q^{17} + 2 q^{19} - 2 q^{21} + 8 q^{23} + 11 q^{25} + 4 q^{27} - 2 q^{29} + 4 q^{31} + 4 q^{35} + 6 q^{37} - 2 q^{41} - 8 q^{43} + 4 q^{45} - 4 q^{47} + q^{49} + 4 q^{51} + 10 q^{53} - 4 q^{57} - 6 q^{59} - 4 q^{61} + q^{63} + 12 q^{67} - 16 q^{69} - 14 q^{73} - 22 q^{75} - 8 q^{79} - 11 q^{81} - 6 q^{83} - 8 q^{85} + 4 q^{87} + 10 q^{89} - 8 q^{93} + 8 q^{95} - 2 q^{97}+O(q^{100})$$ q - 2 * q^3 + 4 * q^5 + q^7 + q^9 - 8 * q^15 - 2 * q^17 + 2 * q^19 - 2 * q^21 + 8 * q^23 + 11 * q^25 + 4 * q^27 - 2 * q^29 + 4 * q^31 + 4 * q^35 + 6 * q^37 - 2 * q^41 - 8 * q^43 + 4 * q^45 - 4 * q^47 + q^49 + 4 * q^51 + 10 * q^53 - 4 * q^57 - 6 * q^59 - 4 * q^61 + q^63 + 12 * q^67 - 16 * q^69 - 14 * q^73 - 22 * q^75 - 8 * q^79 - 11 * q^81 - 6 * q^83 - 8 * q^85 + 4 * q^87 + 10 * q^89 - 8 * q^93 + 8 * q^95 - 2 * 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
0 −2.00000 0 4.00000 0 1.00000 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
$$2$$ $$1$$
$$7$$ $$-1$$

## 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 448.2.a.c 1
3.b odd 2 1 4032.2.a.d 1
4.b odd 2 1 448.2.a.h 1
7.b odd 2 1 3136.2.a.w 1
8.b even 2 1 56.2.a.b 1
8.d odd 2 1 112.2.a.a 1
12.b even 2 1 4032.2.a.a 1
16.e even 4 2 1792.2.b.a 2
16.f odd 4 2 1792.2.b.h 2
24.f even 2 1 1008.2.a.m 1
24.h odd 2 1 504.2.a.h 1
28.d even 2 1 3136.2.a.c 1
40.e odd 2 1 2800.2.a.bd 1
40.f even 2 1 1400.2.a.a 1
40.i odd 4 2 1400.2.g.b 2
40.k even 4 2 2800.2.g.g 2
56.e even 2 1 784.2.a.i 1
56.h odd 2 1 392.2.a.b 1
56.j odd 6 2 392.2.i.e 2
56.k odd 6 2 784.2.i.j 2
56.m even 6 2 784.2.i.b 2
56.p even 6 2 392.2.i.a 2
88.b odd 2 1 6776.2.a.h 1
104.e even 2 1 9464.2.a.h 1
168.e odd 2 1 7056.2.a.c 1
168.i even 2 1 3528.2.a.b 1
168.s odd 6 2 3528.2.s.a 2
168.ba even 6 2 3528.2.s.ba 2
280.c odd 2 1 9800.2.a.bj 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
56.2.a.b 1 8.b even 2 1
112.2.a.a 1 8.d odd 2 1
392.2.a.b 1 56.h odd 2 1
392.2.i.a 2 56.p even 6 2
392.2.i.e 2 56.j odd 6 2
448.2.a.c 1 1.a even 1 1 trivial
448.2.a.h 1 4.b odd 2 1
504.2.a.h 1 24.h odd 2 1
784.2.a.i 1 56.e even 2 1
784.2.i.b 2 56.m even 6 2
784.2.i.j 2 56.k odd 6 2
1008.2.a.m 1 24.f even 2 1
1400.2.a.a 1 40.f even 2 1
1400.2.g.b 2 40.i odd 4 2
1792.2.b.a 2 16.e even 4 2
1792.2.b.h 2 16.f odd 4 2
2800.2.a.bd 1 40.e odd 2 1
2800.2.g.g 2 40.k even 4 2
3136.2.a.c 1 28.d even 2 1
3136.2.a.w 1 7.b odd 2 1
3528.2.a.b 1 168.i even 2 1
3528.2.s.a 2 168.s odd 6 2
3528.2.s.ba 2 168.ba even 6 2
4032.2.a.a 1 12.b even 2 1
4032.2.a.d 1 3.b odd 2 1
6776.2.a.h 1 88.b odd 2 1
7056.2.a.c 1 168.e odd 2 1
9464.2.a.h 1 104.e even 2 1
9800.2.a.bj 1 280.c odd 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(448))$$:

 $$T_{3} + 2$$ T3 + 2 $$T_{5} - 4$$ T5 - 4 $$T_{11}$$ T11

## Hecke characteristic polynomials

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