# Properties

 Label 1521.2.b.h Level $1521$ Weight $2$ Character orbit 1521.b Analytic conductor $12.145$ Analytic rank $0$ Dimension $4$ CM no Inner twists $2$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$1521 = 3^{2} \cdot 13^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 1521.b (of order $$2$$, degree $$1$$, not minimal)

## Newform invariants

 Self dual: no Analytic conductor: $$12.1452461474$$ Analytic rank: $$0$$ Dimension: $$4$$ Coefficient field: $$\Q(i, \sqrt{17})$$ Defining polynomial: $$x^{4} + 9 x^{2} + 16$$ Coefficient ring: $$\Z[a_1, \ldots, a_{7}]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 39) Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

## $q$-expansion

Coefficients of the $$q$$-expansion are expressed in terms of a basis $$1,\beta_1,\beta_2,\beta_3$$ for the coefficient ring described below. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q + \beta_{1} q^{2} + ( -3 + \beta_{3} ) q^{4} + ( \beta_{1} + 2 \beta_{2} ) q^{5} + ( -\beta_{1} + \beta_{2} ) q^{7} + ( -\beta_{1} + 4 \beta_{2} ) q^{8} +O(q^{10})$$ $$q + \beta_{1} q^{2} + ( -3 + \beta_{3} ) q^{4} + ( \beta_{1} + 2 \beta_{2} ) q^{5} + ( -\beta_{1} + \beta_{2} ) q^{7} + ( -\beta_{1} + 4 \beta_{2} ) q^{8} + ( -3 - \beta_{3} ) q^{10} -2 \beta_{2} q^{11} + ( 6 - 2 \beta_{3} ) q^{14} + ( 3 - 3 \beta_{3} ) q^{16} + ( 1 - \beta_{3} ) q^{17} + ( 2 \beta_{1} + 4 \beta_{2} ) q^{19} -\beta_{1} q^{20} + ( -2 + 2 \beta_{3} ) q^{22} + 2 q^{23} -3 \beta_{3} q^{25} + ( 4 \beta_{1} - 6 \beta_{2} ) q^{28} + ( 1 - 3 \beta_{3} ) q^{29} + ( \beta_{1} + \beta_{2} ) q^{31} + ( \beta_{1} - 4 \beta_{2} ) q^{32} + ( \beta_{1} - 4 \beta_{2} ) q^{34} + 2 q^{35} + ( -\beta_{1} - 6 \beta_{2} ) q^{37} + ( -6 - 2 \beta_{3} ) q^{38} + ( -1 - 3 \beta_{3} ) q^{40} + \beta_{1} q^{41} + ( -2 - \beta_{3} ) q^{43} + ( -2 \beta_{1} + 4 \beta_{2} ) q^{44} + 2 \beta_{1} q^{46} + ( 4 \beta_{1} + 2 \beta_{2} ) q^{47} + ( -1 + 3 \beta_{3} ) q^{49} -12 \beta_{2} q^{50} + ( -7 + 3 \beta_{3} ) q^{53} + ( 2 + 2 \beta_{3} ) q^{55} + ( -14 + 6 \beta_{3} ) q^{56} + ( \beta_{1} - 12 \beta_{2} ) q^{58} + ( 2 \beta_{1} - 6 \beta_{2} ) q^{59} + ( 9 - 2 \beta_{3} ) q^{61} -4 q^{62} + ( -3 - \beta_{3} ) q^{64} + ( \beta_{1} + 3 \beta_{2} ) q^{67} + ( -7 + 3 \beta_{3} ) q^{68} + 2 \beta_{1} q^{70} -14 \beta_{2} q^{71} + ( 2 \beta_{1} + 7 \beta_{2} ) q^{73} + ( -1 + 5 \beta_{3} ) q^{74} -2 \beta_{1} q^{76} + ( 4 - 2 \beta_{3} ) q^{77} + ( 8 - \beta_{3} ) q^{79} + ( -3 \beta_{1} - 12 \beta_{2} ) q^{80} + ( -5 + \beta_{3} ) q^{82} + ( -2 \beta_{1} + 4 \beta_{2} ) q^{83} + ( -\beta_{1} - 4 \beta_{2} ) q^{85} + ( -2 \beta_{1} - 4 \beta_{2} ) q^{86} + ( 10 - 2 \beta_{3} ) q^{88} + ( -2 \beta_{1} + 8 \beta_{2} ) q^{89} + ( -6 + 2 \beta_{3} ) q^{92} + ( -18 + 2 \beta_{3} ) q^{94} + ( -10 - 6 \beta_{3} ) q^{95} + ( -\beta_{1} - 7 \beta_{2} ) q^{97} + ( -\beta_{1} + 12 \beta_{2} ) q^{98} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$4q - 10q^{4} + O(q^{10})$$ $$4q - 10q^{4} - 14q^{10} + 20q^{14} + 6q^{16} + 2q^{17} - 4q^{22} + 8q^{23} - 6q^{25} - 2q^{29} + 8q^{35} - 28q^{38} - 10q^{40} - 10q^{43} + 2q^{49} - 22q^{53} + 12q^{55} - 44q^{56} + 32q^{61} - 16q^{62} - 14q^{64} - 22q^{68} + 6q^{74} + 12q^{77} + 30q^{79} - 18q^{82} + 36q^{88} - 20q^{92} - 68q^{94} - 52q^{95} + O(q^{100})$$

Basis of coefficient ring in terms of a root $$\nu$$ of $$x^{4} + 9 x^{2} + 16$$:

 $$\beta_{0}$$ $$=$$ $$1$$ $$\beta_{1}$$ $$=$$ $$\nu$$ $$\beta_{2}$$ $$=$$ $$($$$$\nu^{3} + 5 \nu$$$$)/4$$ $$\beta_{3}$$ $$=$$ $$\nu^{2} + 5$$
 $$1$$ $$=$$ $$\beta_0$$ $$\nu$$ $$=$$ $$\beta_{1}$$ $$\nu^{2}$$ $$=$$ $$\beta_{3} - 5$$ $$\nu^{3}$$ $$=$$ $$4 \beta_{2} - 5 \beta_{1}$$

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/1521\mathbb{Z}\right)^\times$$.

 $$n$$ $$677$$ $$847$$ $$\chi(n)$$ $$1$$ $$-1$$

## 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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
1351.1
 − 2.56155i − 1.56155i 1.56155i 2.56155i
2.56155i 0 −4.56155 0.561553i 0 3.56155i 6.56155i 0 −1.43845
1351.2 1.56155i 0 −0.438447 3.56155i 0 0.561553i 2.43845i 0 −5.56155
1351.3 1.56155i 0 −0.438447 3.56155i 0 0.561553i 2.43845i 0 −5.56155
1351.4 2.56155i 0 −4.56155 0.561553i 0 3.56155i 6.56155i 0 −1.43845
 $$n$$: 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
13.b even 2 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1521.2.b.h 4
3.b odd 2 1 507.2.b.d 4
13.b even 2 1 inner 1521.2.b.h 4
13.d odd 4 1 1521.2.a.g 2
13.d odd 4 1 1521.2.a.m 2
13.f odd 12 2 117.2.g.c 4
39.d odd 2 1 507.2.b.d 4
39.f even 4 1 507.2.a.d 2
39.f even 4 1 507.2.a.g 2
39.h odd 6 2 507.2.j.g 8
39.i odd 6 2 507.2.j.g 8
39.k even 12 2 39.2.e.b 4
39.k even 12 2 507.2.e.g 4
52.l even 12 2 1872.2.t.r 4
156.l odd 4 1 8112.2.a.bk 2
156.l odd 4 1 8112.2.a.bo 2
156.v odd 12 2 624.2.q.h 4
195.bc odd 12 2 975.2.bb.i 8
195.bh even 12 2 975.2.i.k 4
195.bn odd 12 2 975.2.bb.i 8

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
39.2.e.b 4 39.k even 12 2
117.2.g.c 4 13.f odd 12 2
507.2.a.d 2 39.f even 4 1
507.2.a.g 2 39.f even 4 1
507.2.b.d 4 3.b odd 2 1
507.2.b.d 4 39.d odd 2 1
507.2.e.g 4 39.k even 12 2
507.2.j.g 8 39.h odd 6 2
507.2.j.g 8 39.i odd 6 2
624.2.q.h 4 156.v odd 12 2
975.2.i.k 4 195.bh even 12 2
975.2.bb.i 8 195.bc odd 12 2
975.2.bb.i 8 195.bn odd 12 2
1521.2.a.g 2 13.d odd 4 1
1521.2.a.m 2 13.d odd 4 1
1521.2.b.h 4 1.a even 1 1 trivial
1521.2.b.h 4 13.b even 2 1 inner
1872.2.t.r 4 52.l even 12 2
8112.2.a.bk 2 156.l odd 4 1
8112.2.a.bo 2 156.l odd 4 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(1521, [\chi])$$:

 $$T_{2}^{4} + 9 T_{2}^{2} + 16$$ $$T_{5}^{4} + 13 T_{5}^{2} + 4$$ $$T_{7}^{4} + 13 T_{7}^{2} + 4$$

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$16 + 9 T^{2} + T^{4}$$
$3$ $$T^{4}$$
$5$ $$4 + 13 T^{2} + T^{4}$$
$7$ $$4 + 13 T^{2} + T^{4}$$
$11$ $$( 4 + T^{2} )^{2}$$
$13$ $$T^{4}$$
$17$ $$( -4 - T + T^{2} )^{2}$$
$19$ $$64 + 52 T^{2} + T^{4}$$
$23$ $$( -2 + T )^{4}$$
$29$ $$( -38 + T + T^{2} )^{2}$$
$31$ $$16 + 9 T^{2} + T^{4}$$
$37$ $$676 + 69 T^{2} + T^{4}$$
$41$ $$16 + 9 T^{2} + T^{4}$$
$43$ $$( 2 + 5 T + T^{2} )^{2}$$
$47$ $$( 68 + T^{2} )^{2}$$
$53$ $$( -8 + 11 T + T^{2} )^{2}$$
$59$ $$1024 + 132 T^{2} + T^{4}$$
$61$ $$( 47 - 16 T + T^{2} )^{2}$$
$67$ $$4 + 21 T^{2} + T^{4}$$
$71$ $$( 196 + T^{2} )^{2}$$
$73$ $$361 + 106 T^{2} + T^{4}$$
$79$ $$( 52 - 15 T + T^{2} )^{2}$$
$83$ $$64 + 84 T^{2} + T^{4}$$
$89$ $$4096 + 196 T^{2} + T^{4}$$
$97$ $$1444 + 93 T^{2} + T^{4}$$