# Properties

 Label 2646.2.h.h Level $2646$ Weight $2$ Character orbit 2646.h Analytic conductor $21.128$ Analytic rank $0$ Dimension $2$ CM no Inner twists $2$

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## Newspace parameters

 Level: $$N$$ $$=$$ $$2646 = 2 \cdot 3^{3} \cdot 7^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 2646.h (of order $$3$$, degree $$2$$, not minimal)

## Newform invariants

 Self dual: no Analytic conductor: $$21.1284163748$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{-3})$$ Defining polynomial: $$x^{2} - x + 1$$ Coefficient ring: $$\Z[a_1, a_2]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 18) Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

## $q$-expansion

Coefficients of the $$q$$-expansion are expressed in terms of a primitive root of unity $$\zeta_{6}$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q + ( 1 - \zeta_{6} ) q^{2} -\zeta_{6} q^{4} - q^{8} +O(q^{10})$$ $$q + ( 1 - \zeta_{6} ) q^{2} -\zeta_{6} q^{4} - q^{8} + 3 q^{11} + ( -2 + 2 \zeta_{6} ) q^{13} + ( -1 + \zeta_{6} ) q^{16} + ( -3 + 3 \zeta_{6} ) q^{17} + \zeta_{6} q^{19} + ( 3 - 3 \zeta_{6} ) q^{22} + 6 q^{23} -5 q^{25} + 2 \zeta_{6} q^{26} + 6 \zeta_{6} q^{29} + 4 \zeta_{6} q^{31} + \zeta_{6} q^{32} + 3 \zeta_{6} q^{34} + 4 \zeta_{6} q^{37} + q^{38} + ( 9 - 9 \zeta_{6} ) q^{41} + \zeta_{6} q^{43} -3 \zeta_{6} q^{44} + ( 6 - 6 \zeta_{6} ) q^{46} + ( -6 + 6 \zeta_{6} ) q^{47} + ( -5 + 5 \zeta_{6} ) q^{50} + 2 q^{52} + ( 12 - 12 \zeta_{6} ) q^{53} + 6 q^{58} + 3 \zeta_{6} q^{59} + ( -8 + 8 \zeta_{6} ) q^{61} + 4 q^{62} + q^{64} -5 \zeta_{6} q^{67} + 3 q^{68} + 12 q^{71} + ( -11 + 11 \zeta_{6} ) q^{73} + 4 q^{74} + ( 1 - \zeta_{6} ) q^{76} + ( 4 - 4 \zeta_{6} ) q^{79} -9 \zeta_{6} q^{82} + 12 \zeta_{6} q^{83} + q^{86} -3 q^{88} + 6 \zeta_{6} q^{89} -6 \zeta_{6} q^{92} + 6 \zeta_{6} q^{94} -5 \zeta_{6} q^{97} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2q + q^{2} - q^{4} - 2q^{8} + O(q^{10})$$ $$2q + q^{2} - q^{4} - 2q^{8} + 6q^{11} - 2q^{13} - q^{16} - 3q^{17} + q^{19} + 3q^{22} + 12q^{23} - 10q^{25} + 2q^{26} + 6q^{29} + 4q^{31} + q^{32} + 3q^{34} + 4q^{37} + 2q^{38} + 9q^{41} + q^{43} - 3q^{44} + 6q^{46} - 6q^{47} - 5q^{50} + 4q^{52} + 12q^{53} + 12q^{58} + 3q^{59} - 8q^{61} + 8q^{62} + 2q^{64} - 5q^{67} + 6q^{68} + 24q^{71} - 11q^{73} + 8q^{74} + q^{76} + 4q^{79} - 9q^{82} + 12q^{83} + 2q^{86} - 6q^{88} + 6q^{89} - 6q^{92} + 6q^{94} - 5q^{97} + O(q^{100})$$

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/2646\mathbb{Z}\right)^\times$$.

 $$n$$ $$785$$ $$1081$$ $$\chi(n)$$ $$-1 + \zeta_{6}$$ $$-\zeta_{6}$$

## 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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
361.1
 0.5 + 0.866025i 0.5 − 0.866025i
0.500000 0.866025i 0 −0.500000 0.866025i 0 0 0 −1.00000 0 0
667.1 0.500000 + 0.866025i 0 −0.500000 + 0.866025i 0 0 0 −1.00000 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
63.g even 3 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2646.2.h.h 2
3.b odd 2 1 882.2.h.c 2
7.b odd 2 1 2646.2.h.i 2
7.c even 3 1 54.2.c.a 2
7.c even 3 1 2646.2.e.b 2
7.d odd 6 1 2646.2.e.c 2
7.d odd 6 1 2646.2.f.g 2
9.c even 3 1 2646.2.e.b 2
9.d odd 6 1 882.2.e.i 2
21.c even 2 1 882.2.h.b 2
21.g even 6 1 882.2.e.g 2
21.g even 6 1 882.2.f.d 2
21.h odd 6 1 18.2.c.a 2
21.h odd 6 1 882.2.e.i 2
28.g odd 6 1 432.2.i.b 2
35.j even 6 1 1350.2.e.c 2
35.l odd 12 2 1350.2.j.a 4
56.k odd 6 1 1728.2.i.f 2
56.p even 6 1 1728.2.i.e 2
63.g even 3 1 162.2.a.b 1
63.g even 3 1 inner 2646.2.h.h 2
63.h even 3 1 54.2.c.a 2
63.i even 6 1 882.2.f.d 2
63.j odd 6 1 18.2.c.a 2
63.k odd 6 1 2646.2.h.i 2
63.k odd 6 1 7938.2.a.i 1
63.l odd 6 1 2646.2.e.c 2
63.n odd 6 1 162.2.a.c 1
63.n odd 6 1 882.2.h.c 2
63.o even 6 1 882.2.e.g 2
63.s even 6 1 882.2.h.b 2
63.s even 6 1 7938.2.a.x 1
63.t odd 6 1 2646.2.f.g 2
84.n even 6 1 144.2.i.c 2
105.o odd 6 1 450.2.e.i 2
105.x even 12 2 450.2.j.e 4
168.s odd 6 1 576.2.i.g 2
168.v even 6 1 576.2.i.a 2
252.o even 6 1 1296.2.a.g 1
252.u odd 6 1 432.2.i.b 2
252.bb even 6 1 144.2.i.c 2
252.bl odd 6 1 1296.2.a.f 1
315.r even 6 1 1350.2.e.c 2
315.v odd 6 1 4050.2.a.c 1
315.bo even 6 1 4050.2.a.v 1
315.br odd 6 1 450.2.e.i 2
315.bt odd 12 2 1350.2.j.a 4
315.bv even 12 2 450.2.j.e 4
315.bx even 12 2 4050.2.c.c 2
315.ch odd 12 2 4050.2.c.r 2
504.w even 6 1 5184.2.a.q 1
504.ba odd 6 1 5184.2.a.p 1
504.bi odd 6 1 576.2.i.g 2
504.bt even 6 1 576.2.i.a 2
504.ce odd 6 1 1728.2.i.f 2
504.cq even 6 1 1728.2.i.e 2
504.cy even 6 1 5184.2.a.o 1
504.db odd 6 1 5184.2.a.r 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
18.2.c.a 2 21.h odd 6 1
18.2.c.a 2 63.j odd 6 1
54.2.c.a 2 7.c even 3 1
54.2.c.a 2 63.h even 3 1
144.2.i.c 2 84.n even 6 1
144.2.i.c 2 252.bb even 6 1
162.2.a.b 1 63.g even 3 1
162.2.a.c 1 63.n odd 6 1
432.2.i.b 2 28.g odd 6 1
432.2.i.b 2 252.u odd 6 1
450.2.e.i 2 105.o odd 6 1
450.2.e.i 2 315.br odd 6 1
450.2.j.e 4 105.x even 12 2
450.2.j.e 4 315.bv even 12 2
576.2.i.a 2 168.v even 6 1
576.2.i.a 2 504.bt even 6 1
576.2.i.g 2 168.s odd 6 1
576.2.i.g 2 504.bi odd 6 1
882.2.e.g 2 21.g even 6 1
882.2.e.g 2 63.o even 6 1
882.2.e.i 2 9.d odd 6 1
882.2.e.i 2 21.h odd 6 1
882.2.f.d 2 21.g even 6 1
882.2.f.d 2 63.i even 6 1
882.2.h.b 2 21.c even 2 1
882.2.h.b 2 63.s even 6 1
882.2.h.c 2 3.b odd 2 1
882.2.h.c 2 63.n odd 6 1
1296.2.a.f 1 252.bl odd 6 1
1296.2.a.g 1 252.o even 6 1
1350.2.e.c 2 35.j even 6 1
1350.2.e.c 2 315.r even 6 1
1350.2.j.a 4 35.l odd 12 2
1350.2.j.a 4 315.bt odd 12 2
1728.2.i.e 2 56.p even 6 1
1728.2.i.e 2 504.cq even 6 1
1728.2.i.f 2 56.k odd 6 1
1728.2.i.f 2 504.ce odd 6 1
2646.2.e.b 2 7.c even 3 1
2646.2.e.b 2 9.c even 3 1
2646.2.e.c 2 7.d odd 6 1
2646.2.e.c 2 63.l odd 6 1
2646.2.f.g 2 7.d odd 6 1
2646.2.f.g 2 63.t odd 6 1
2646.2.h.h 2 1.a even 1 1 trivial
2646.2.h.h 2 63.g even 3 1 inner
2646.2.h.i 2 7.b odd 2 1
2646.2.h.i 2 63.k odd 6 1
4050.2.a.c 1 315.v odd 6 1
4050.2.a.v 1 315.bo even 6 1
4050.2.c.c 2 315.bx even 12 2
4050.2.c.r 2 315.ch odd 12 2
5184.2.a.o 1 504.cy even 6 1
5184.2.a.p 1 504.ba odd 6 1
5184.2.a.q 1 504.w even 6 1
5184.2.a.r 1 504.db odd 6 1
7938.2.a.i 1 63.k odd 6 1
7938.2.a.x 1 63.s even 6 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(2646, [\chi])$$:

 $$T_{5}$$ $$T_{11} - 3$$ $$T_{13}^{2} + 2 T_{13} + 4$$

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$1 - T + T^{2}$$
$3$ $$T^{2}$$
$5$ $$T^{2}$$
$7$ $$T^{2}$$
$11$ $$( -3 + T )^{2}$$
$13$ $$4 + 2 T + T^{2}$$
$17$ $$9 + 3 T + T^{2}$$
$19$ $$1 - T + T^{2}$$
$23$ $$( -6 + T )^{2}$$
$29$ $$36 - 6 T + T^{2}$$
$31$ $$16 - 4 T + T^{2}$$
$37$ $$16 - 4 T + T^{2}$$
$41$ $$81 - 9 T + T^{2}$$
$43$ $$1 - T + T^{2}$$
$47$ $$36 + 6 T + T^{2}$$
$53$ $$144 - 12 T + T^{2}$$
$59$ $$9 - 3 T + T^{2}$$
$61$ $$64 + 8 T + T^{2}$$
$67$ $$25 + 5 T + T^{2}$$
$71$ $$( -12 + T )^{2}$$
$73$ $$121 + 11 T + T^{2}$$
$79$ $$16 - 4 T + T^{2}$$
$83$ $$144 - 12 T + T^{2}$$
$89$ $$36 - 6 T + T^{2}$$
$97$ $$25 + 5 T + T^{2}$$
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