# Properties

 Label 756.1.bk.a Level $756$ Weight $1$ Character orbit 756.bk Analytic conductor $0.377$ Analytic rank $0$ Dimension $2$ Projective image $D_{3}$ CM discriminant -3 Inner twists $4$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$756 = 2^{2} \cdot 3^{3} \cdot 7$$ Weight: $$k$$ $$=$$ $$1$$ Character orbit: $$[\chi]$$ $$=$$ 756.bk (of order $$6$$, degree $$2$$, minimal)

## Newform invariants

 Self dual: no Analytic conductor: $$0.377293149551$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\zeta_{6})$$ Defining polynomial: $$x^{2} - x + 1$$ Coefficient ring: $$\Z[a_1, \ldots, a_{7}]$$ Coefficient ring index: $$1$$ Twist minimal: yes Projective image: $$D_{3}$$ Projective field: Galois closure of 3.1.5292.1 Artin image: $C_3\times S_3$ Artin field: Galois closure of 6.0.1714608.2

## $q$-expansion

The $$q$$-expansion and trace form are shown below.

 $$f(q)$$ $$=$$ $$q -\zeta_{6} q^{7} +O(q^{10})$$ $$q -\zeta_{6} q^{7} + 2 q^{13} -\zeta_{6}^{2} q^{19} -\zeta_{6} q^{25} + \zeta_{6} q^{31} + 2 \zeta_{6}^{2} q^{37} - q^{43} + \zeta_{6}^{2} q^{49} -\zeta_{6}^{2} q^{61} -2 \zeta_{6} q^{67} + \zeta_{6} q^{73} + 2 \zeta_{6}^{2} q^{79} -2 \zeta_{6} q^{91} - q^{97} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2q - q^{7} + O(q^{10})$$ $$2q - q^{7} + 4q^{13} + q^{19} - q^{25} + q^{31} - 2q^{37} - 2q^{43} - q^{49} + q^{61} - 2q^{67} + q^{73} - 2q^{79} - 2q^{91} - 2q^{97} + O(q^{100})$$

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/756\mathbb{Z}\right)^\times$$.

 $$n$$ $$29$$ $$325$$ $$379$$ $$\chi(n)$$ $$-1$$ $$\zeta_{6}^{2}$$ $$1$$

## 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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
53.1
 0.5 − 0.866025i 0.5 + 0.866025i
0 0 0 0 0 −0.500000 + 0.866025i 0 0 0
485.1 0 0 0 0 0 −0.500000 0.866025i 0 0 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
3.b odd 2 1 CM by $$\Q(\sqrt{-3})$$
7.c even 3 1 inner
21.h odd 6 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 756.1.bk.a 2
3.b odd 2 1 CM 756.1.bk.a 2
4.b odd 2 1 3024.1.dc.b 2
7.c even 3 1 inner 756.1.bk.a 2
9.c even 3 1 2268.1.m.b 2
9.c even 3 1 2268.1.bh.a 2
9.d odd 6 1 2268.1.m.b 2
9.d odd 6 1 2268.1.bh.a 2
12.b even 2 1 3024.1.dc.b 2
21.h odd 6 1 inner 756.1.bk.a 2
28.g odd 6 1 3024.1.dc.b 2
63.g even 3 1 2268.1.bh.a 2
63.h even 3 1 2268.1.m.b 2
63.j odd 6 1 2268.1.m.b 2
63.n odd 6 1 2268.1.bh.a 2
84.n even 6 1 3024.1.dc.b 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
756.1.bk.a 2 1.a even 1 1 trivial
756.1.bk.a 2 3.b odd 2 1 CM
756.1.bk.a 2 7.c even 3 1 inner
756.1.bk.a 2 21.h odd 6 1 inner
2268.1.m.b 2 9.c even 3 1
2268.1.m.b 2 9.d odd 6 1
2268.1.m.b 2 63.h even 3 1
2268.1.m.b 2 63.j odd 6 1
2268.1.bh.a 2 9.c even 3 1
2268.1.bh.a 2 9.d odd 6 1
2268.1.bh.a 2 63.g even 3 1
2268.1.bh.a 2 63.n odd 6 1
3024.1.dc.b 2 4.b odd 2 1
3024.1.dc.b 2 12.b even 2 1
3024.1.dc.b 2 28.g odd 6 1
3024.1.dc.b 2 84.n even 6 1

## Hecke kernels

This newform subspace is the entire newspace $$S_{1}^{\mathrm{new}}(756, [\chi])$$.

## Hecke characteristic polynomials

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