# Properties

 Label 1280.2.o.p Level $1280$ Weight $2$ Character orbit 1280.o Analytic conductor $10.221$ Analytic rank $0$ Dimension $2$ CM no Inner twists $2$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$1280 = 2^{8} \cdot 5$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 1280.o (of order $$4$$, degree $$2$$, not minimal)

## Newform invariants

 Self dual: no Analytic conductor: $$10.2208514587$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{-1})$$ Defining polynomial: $$x^{2} + 1$$ Coefficient ring: $$\Z[a_1, \ldots, a_{9}]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 160) Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

## $q$-expansion

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

 $$f(q)$$ $$=$$ $$q + ( 2 - 2 i ) q^{3} + ( 1 + 2 i ) q^{5} + ( 2 - 2 i ) q^{7} -5 i q^{9} +O(q^{10})$$ $$q + ( 2 - 2 i ) q^{3} + ( 1 + 2 i ) q^{5} + ( 2 - 2 i ) q^{7} -5 i q^{9} + ( -1 - i ) q^{13} + ( 6 + 2 i ) q^{15} + ( -5 - 5 i ) q^{17} -4 i q^{19} -8 i q^{21} + ( 2 + 2 i ) q^{23} + ( -3 + 4 i ) q^{25} + ( -4 - 4 i ) q^{27} + 4 q^{29} + 4 i q^{31} + ( 6 + 2 i ) q^{35} + ( 1 - i ) q^{37} -4 q^{39} + ( 6 - 6 i ) q^{43} + ( 10 - 5 i ) q^{45} + ( 2 - 2 i ) q^{47} -i q^{49} -20 q^{51} + ( 7 + 7 i ) q^{53} + ( -8 - 8 i ) q^{57} + 4 i q^{59} -4 i q^{61} + ( -10 - 10 i ) q^{63} + ( 1 - 3 i ) q^{65} + ( 10 + 10 i ) q^{67} + 8 q^{69} + 12 i q^{71} + ( 3 - 3 i ) q^{73} + ( 2 + 14 i ) q^{75} -16 q^{79} - q^{81} + ( -2 + 2 i ) q^{83} + ( 5 - 15 i ) q^{85} + ( 8 - 8 i ) q^{87} -4 q^{91} + ( 8 + 8 i ) q^{93} + ( 8 - 4 i ) q^{95} + ( -3 - 3 i ) q^{97} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2q + 4q^{3} + 2q^{5} + 4q^{7} + O(q^{10})$$ $$2q + 4q^{3} + 2q^{5} + 4q^{7} - 2q^{13} + 12q^{15} - 10q^{17} + 4q^{23} - 6q^{25} - 8q^{27} + 8q^{29} + 12q^{35} + 2q^{37} - 8q^{39} + 12q^{43} + 20q^{45} + 4q^{47} - 40q^{51} + 14q^{53} - 16q^{57} - 20q^{63} + 2q^{65} + 20q^{67} + 16q^{69} + 6q^{73} + 4q^{75} - 32q^{79} - 2q^{81} - 4q^{83} + 10q^{85} + 16q^{87} - 8q^{91} + 16q^{93} + 16q^{95} - 6q^{97} + O(q^{100})$$

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/1280\mathbb{Z}\right)^\times$$.

 $$n$$ $$257$$ $$261$$ $$511$$ $$\chi(n)$$ $$i$$ $$-1$$ $$-1$$

## 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.

Label $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
127.1
 1.00000i − 1.00000i
0 2.00000 2.00000i 0 1.00000 + 2.00000i 0 2.00000 2.00000i 0 5.00000i 0
383.1 0 2.00000 + 2.00000i 0 1.00000 2.00000i 0 2.00000 + 2.00000i 0 5.00000i 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
40.k even 4 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1280.2.o.p 2
4.b odd 2 1 1280.2.o.b 2
5.c odd 4 1 1280.2.o.o 2
8.b even 2 1 1280.2.o.a 2
8.d odd 2 1 1280.2.o.o 2
16.e even 4 1 160.2.n.a 2
16.e even 4 1 320.2.n.h 2
16.f odd 4 1 160.2.n.f yes 2
16.f odd 4 1 320.2.n.a 2
20.e even 4 1 1280.2.o.a 2
40.i odd 4 1 1280.2.o.b 2
40.k even 4 1 inner 1280.2.o.p 2
48.i odd 4 1 1440.2.x.i 2
48.k even 4 1 1440.2.x.j 2
80.i odd 4 1 320.2.n.a 2
80.i odd 4 1 800.2.n.a 2
80.j even 4 1 160.2.n.a 2
80.j even 4 1 1600.2.n.a 2
80.k odd 4 1 800.2.n.a 2
80.k odd 4 1 1600.2.n.n 2
80.q even 4 1 800.2.n.j 2
80.q even 4 1 1600.2.n.a 2
80.s even 4 1 320.2.n.h 2
80.s even 4 1 800.2.n.j 2
80.t odd 4 1 160.2.n.f yes 2
80.t odd 4 1 1600.2.n.n 2
240.bd odd 4 1 1440.2.x.i 2
240.bf even 4 1 1440.2.x.j 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
160.2.n.a 2 16.e even 4 1
160.2.n.a 2 80.j even 4 1
160.2.n.f yes 2 16.f odd 4 1
160.2.n.f yes 2 80.t odd 4 1
320.2.n.a 2 16.f odd 4 1
320.2.n.a 2 80.i odd 4 1
320.2.n.h 2 16.e even 4 1
320.2.n.h 2 80.s even 4 1
800.2.n.a 2 80.i odd 4 1
800.2.n.a 2 80.k odd 4 1
800.2.n.j 2 80.q even 4 1
800.2.n.j 2 80.s even 4 1
1280.2.o.a 2 8.b even 2 1
1280.2.o.a 2 20.e even 4 1
1280.2.o.b 2 4.b odd 2 1
1280.2.o.b 2 40.i odd 4 1
1280.2.o.o 2 5.c odd 4 1
1280.2.o.o 2 8.d odd 2 1
1280.2.o.p 2 1.a even 1 1 trivial
1280.2.o.p 2 40.k even 4 1 inner
1440.2.x.i 2 48.i odd 4 1
1440.2.x.i 2 240.bd odd 4 1
1440.2.x.j 2 48.k even 4 1
1440.2.x.j 2 240.bf even 4 1
1600.2.n.a 2 80.j even 4 1
1600.2.n.a 2 80.q even 4 1
1600.2.n.n 2 80.k odd 4 1
1600.2.n.n 2 80.t odd 4 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(1280, [\chi])$$:

 $$T_{3}^{2} - 4 T_{3} + 8$$ $$T_{7}^{2} - 4 T_{7} + 8$$ $$T_{13}^{2} + 2 T_{13} + 2$$

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{2}$$
$3$ $$8 - 4 T + T^{2}$$
$5$ $$5 - 2 T + T^{2}$$
$7$ $$8 - 4 T + T^{2}$$
$11$ $$T^{2}$$
$13$ $$2 + 2 T + T^{2}$$
$17$ $$50 + 10 T + T^{2}$$
$19$ $$16 + T^{2}$$
$23$ $$8 - 4 T + T^{2}$$
$29$ $$( -4 + T )^{2}$$
$31$ $$16 + T^{2}$$
$37$ $$2 - 2 T + T^{2}$$
$41$ $$T^{2}$$
$43$ $$72 - 12 T + T^{2}$$
$47$ $$8 - 4 T + T^{2}$$
$53$ $$98 - 14 T + T^{2}$$
$59$ $$16 + T^{2}$$
$61$ $$16 + T^{2}$$
$67$ $$200 - 20 T + T^{2}$$
$71$ $$144 + T^{2}$$
$73$ $$18 - 6 T + T^{2}$$
$79$ $$( 16 + T )^{2}$$
$83$ $$8 + 4 T + T^{2}$$
$89$ $$T^{2}$$
$97$ $$18 + 6 T + T^{2}$$