Properties

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

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Newspace parameters

Level: \( N \) \(=\) \( 1280 = 2^{8} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1280.n (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: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 320)
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.

\(f(q)\) \(=\) \( q + ( 1 + i ) q^{3} + ( -2 + i ) q^{5} + ( -1 + i ) q^{7} -i q^{9} +O(q^{10})\) \( q + ( 1 + i ) q^{3} + ( -2 + i ) q^{5} + ( -1 + i ) q^{7} -i q^{9} -4 i q^{11} + ( 3 - 3 i ) q^{13} + ( -3 - i ) q^{15} + ( -3 - 3 i ) q^{17} + 6 q^{19} -2 q^{21} + ( -3 - 3 i ) q^{23} + ( 3 - 4 i ) q^{25} + ( 4 - 4 i ) q^{27} + 2 i q^{29} + 6 i q^{31} + ( 4 - 4 i ) q^{33} + ( 1 - 3 i ) q^{35} + ( 3 + 3 i ) q^{37} + 6 q^{39} -6 q^{41} + ( 3 + 3 i ) q^{43} + ( 1 + 2 i ) q^{45} + ( 9 - 9 i ) q^{47} + 5 i q^{49} -6 i q^{51} + ( 5 - 5 i ) q^{53} + ( 4 + 8 i ) q^{55} + ( 6 + 6 i ) q^{57} + 10 q^{59} -12 q^{61} + ( 1 + i ) q^{63} + ( -3 + 9 i ) q^{65} + ( 9 - 9 i ) q^{67} -6 i q^{69} -6 i q^{71} + ( -5 + 5 i ) q^{73} + ( 7 - i ) q^{75} + ( 4 + 4 i ) q^{77} + 5 q^{81} + ( -3 - 3 i ) q^{83} + ( 9 + 3 i ) q^{85} + ( -2 + 2 i ) q^{87} + 6 i q^{91} + ( -6 + 6 i ) q^{93} + ( -12 + 6 i ) q^{95} + ( -7 - 7 i ) q^{97} -4 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2q + 2q^{3} - 4q^{5} - 2q^{7} + O(q^{10}) \) \( 2q + 2q^{3} - 4q^{5} - 2q^{7} + 6q^{13} - 6q^{15} - 6q^{17} + 12q^{19} - 4q^{21} - 6q^{23} + 6q^{25} + 8q^{27} + 8q^{33} + 2q^{35} + 6q^{37} + 12q^{39} - 12q^{41} + 6q^{43} + 2q^{45} + 18q^{47} + 10q^{53} + 8q^{55} + 12q^{57} + 20q^{59} - 24q^{61} + 2q^{63} - 6q^{65} + 18q^{67} - 10q^{73} + 14q^{75} + 8q^{77} + 10q^{81} - 6q^{83} + 18q^{85} - 4q^{87} - 12q^{93} - 24q^{95} - 14q^{97} - 8q^{99} + O(q^{100}) \)

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 \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
767.1
1.00000i
1.00000i
0 1.00000 + 1.00000i 0 −2.00000 + 1.00000i 0 −1.00000 + 1.00000i 0 1.00000i 0
1023.1 0 1.00000 1.00000i 0 −2.00000 1.00000i 0 −1.00000 1.00000i 0 1.00000i 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
20.e 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.n.i 2
4.b odd 2 1 1280.2.n.c 2
5.c odd 4 1 1280.2.n.c 2
8.b even 2 1 1280.2.n.d 2
8.d odd 2 1 1280.2.n.j 2
16.e even 4 1 320.2.o.b yes 2
16.e even 4 1 320.2.o.c yes 2
16.f odd 4 1 320.2.o.a 2
16.f odd 4 1 320.2.o.d yes 2
20.e even 4 1 inner 1280.2.n.i 2
40.i odd 4 1 1280.2.n.j 2
40.k even 4 1 1280.2.n.d 2
80.i odd 4 1 320.2.o.a 2
80.i odd 4 1 1600.2.o.b 2
80.j even 4 1 320.2.o.b yes 2
80.j even 4 1 1600.2.o.a 2
80.k odd 4 1 1600.2.o.b 2
80.k odd 4 1 1600.2.o.d 2
80.q even 4 1 1600.2.o.a 2
80.q even 4 1 1600.2.o.c 2
80.s even 4 1 320.2.o.c yes 2
80.s even 4 1 1600.2.o.c 2
80.t odd 4 1 320.2.o.d yes 2
80.t odd 4 1 1600.2.o.d 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
320.2.o.a 2 16.f odd 4 1
320.2.o.a 2 80.i odd 4 1
320.2.o.b yes 2 16.e even 4 1
320.2.o.b yes 2 80.j even 4 1
320.2.o.c yes 2 16.e even 4 1
320.2.o.c yes 2 80.s even 4 1
320.2.o.d yes 2 16.f odd 4 1
320.2.o.d yes 2 80.t odd 4 1
1280.2.n.c 2 4.b odd 2 1
1280.2.n.c 2 5.c odd 4 1
1280.2.n.d 2 8.b even 2 1
1280.2.n.d 2 40.k even 4 1
1280.2.n.i 2 1.a even 1 1 trivial
1280.2.n.i 2 20.e even 4 1 inner
1280.2.n.j 2 8.d odd 2 1
1280.2.n.j 2 40.i odd 4 1
1600.2.o.a 2 80.j even 4 1
1600.2.o.a 2 80.q even 4 1
1600.2.o.b 2 80.i odd 4 1
1600.2.o.b 2 80.k odd 4 1
1600.2.o.c 2 80.q even 4 1
1600.2.o.c 2 80.s even 4 1
1600.2.o.d 2 80.k odd 4 1
1600.2.o.d 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 \(S_{2}^{\mathrm{new}}(1280, [\chi])\):

\( T_{3}^{2} - 2 T_{3} + 2 \)
\( T_{7}^{2} + 2 T_{7} + 2 \)
\( T_{13}^{2} - 6 T_{13} + 18 \)

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \)
$3$ \( 2 - 2 T + T^{2} \)
$5$ \( 5 + 4 T + T^{2} \)
$7$ \( 2 + 2 T + T^{2} \)
$11$ \( 16 + T^{2} \)
$13$ \( 18 - 6 T + T^{2} \)
$17$ \( 18 + 6 T + T^{2} \)
$19$ \( ( -6 + T )^{2} \)
$23$ \( 18 + 6 T + T^{2} \)
$29$ \( 4 + T^{2} \)
$31$ \( 36 + T^{2} \)
$37$ \( 18 - 6 T + T^{2} \)
$41$ \( ( 6 + T )^{2} \)
$43$ \( 18 - 6 T + T^{2} \)
$47$ \( 162 - 18 T + T^{2} \)
$53$ \( 50 - 10 T + T^{2} \)
$59$ \( ( -10 + T )^{2} \)
$61$ \( ( 12 + T )^{2} \)
$67$ \( 162 - 18 T + T^{2} \)
$71$ \( 36 + T^{2} \)
$73$ \( 50 + 10 T + T^{2} \)
$79$ \( T^{2} \)
$83$ \( 18 + 6 T + T^{2} \)
$89$ \( T^{2} \)
$97$ \( 98 + 14 T + T^{2} \)
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