# Properties

 Label 845.2.a.l Level $845$ Weight $2$ Character orbit 845.a Self dual yes Analytic conductor $6.747$ Analytic rank $1$ Dimension $4$ CM no Inner twists $1$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$845 = 5 \cdot 13^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 845.a (trivial)

## Newform invariants

 Self dual: yes Analytic conductor: $$6.74735897080$$ Analytic rank: $$1$$ Dimension: $$4$$ Coefficient field: 4.4.4752.1 Defining polynomial: $$x^{4} - 2 x^{3} - 3 x^{2} + 4 x + 1$$ Coefficient ring: $$\Z[a_1, a_2]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 65) Fricke sign: $$1$$ Sato-Tate group: $\mathrm{SU}(2)$

## $q$-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.

 $$f(q)$$ $$=$$ $$q -\beta_{1} q^{2} -\beta_{3} q^{3} + ( \beta_{1} + \beta_{2} ) q^{4} + q^{5} + ( \beta_{1} + \beta_{2} + \beta_{3} ) q^{6} + ( -3 - \beta_{2} + \beta_{3} ) q^{7} + ( -1 - \beta_{2} - \beta_{3} ) q^{8} + 2 \beta_{1} q^{9} +O(q^{10})$$ $$q -\beta_{1} q^{2} -\beta_{3} q^{3} + ( \beta_{1} + \beta_{2} ) q^{4} + q^{5} + ( \beta_{1} + \beta_{2} + \beta_{3} ) q^{6} + ( -3 - \beta_{2} + \beta_{3} ) q^{7} + ( -1 - \beta_{2} - \beta_{3} ) q^{8} + 2 \beta_{1} q^{9} -\beta_{1} q^{10} + ( -2 \beta_{1} - \beta_{2} + 2 \beta_{3} ) q^{11} + ( -1 - 3 \beta_{1} - 2 \beta_{2} ) q^{12} + ( -1 + 3 \beta_{1} - \beta_{2} ) q^{14} -\beta_{3} q^{15} + ( -1 + \beta_{1} - \beta_{2} + 2 \beta_{3} ) q^{16} + ( 2 \beta_{2} - \beta_{3} ) q^{17} + ( -4 - 2 \beta_{1} - 2 \beta_{2} ) q^{18} + ( -4 - \beta_{2} ) q^{19} + ( \beta_{1} + \beta_{2} ) q^{20} + ( -2 + \beta_{2} + 2 \beta_{3} ) q^{21} + ( 3 + \beta_{1} - \beta_{3} ) q^{22} + ( -4 + 2 \beta_{1} + \beta_{3} ) q^{23} + ( 4 + 4 \beta_{1} + \beta_{2} ) q^{24} + q^{25} + ( -2 \beta_{1} - 2 \beta_{2} + \beta_{3} ) q^{27} + ( -1 - \beta_{1} - \beta_{2} - \beta_{3} ) q^{28} + ( 1 + 2 \beta_{1} + 2 \beta_{2} ) q^{29} + ( \beta_{1} + \beta_{2} + \beta_{3} ) q^{30} + ( -2 + 2 \beta_{2} ) q^{31} + ( -1 - \beta_{1} - \beta_{2} + \beta_{3} ) q^{32} + ( -5 + 3 \beta_{2} + \beta_{3} ) q^{33} + ( 2 - \beta_{1} + \beta_{2} - \beta_{3} ) q^{34} + ( -3 - \beta_{2} + \beta_{3} ) q^{35} + ( 2 + 4 \beta_{1} + 2 \beta_{2} + 2 \beta_{3} ) q^{36} + ( 1 + 2 \beta_{1} + \beta_{2} - 3 \beta_{3} ) q^{37} + ( -1 + 5 \beta_{1} + \beta_{3} ) q^{38} + ( -1 - \beta_{2} - \beta_{3} ) q^{40} + ( -2 + \beta_{2} ) q^{41} + ( 1 - \beta_{1} - 2 \beta_{2} - 3 \beta_{3} ) q^{42} + ( 2 \beta_{2} - \beta_{3} ) q^{43} + ( -2 + \beta_{1} + 2 \beta_{2} - 3 \beta_{3} ) q^{44} + 2 \beta_{1} q^{45} + ( -4 + \beta_{1} - 3 \beta_{2} - \beta_{3} ) q^{46} + ( -4 + 4 \beta_{1} + 2 \beta_{2} ) q^{47} + ( -5 - 3 \beta_{1} - \beta_{3} ) q^{48} + ( 6 - 2 \beta_{1} + 4 \beta_{2} - 4 \beta_{3} ) q^{49} -\beta_{1} q^{50} + ( 1 - 2 \beta_{1} - 2 \beta_{2} + 2 \beta_{3} ) q^{51} + ( -2 - 2 \beta_{1} ) q^{53} + ( 2 + 3 \beta_{1} + \beta_{2} + \beta_{3} ) q^{54} + ( -2 \beta_{1} - \beta_{2} + 2 \beta_{3} ) q^{55} + ( 3 - 2 \beta_{1} + 4 \beta_{2} + 2 \beta_{3} ) q^{56} + ( 1 + 2 \beta_{1} + \beta_{2} + 3 \beta_{3} ) q^{57} + ( -2 - 5 \beta_{1} - 2 \beta_{2} - 2 \beta_{3} ) q^{58} + ( -4 + 2 \beta_{1} - \beta_{2} ) q^{59} + ( -1 - 3 \beta_{1} - 2 \beta_{2} ) q^{60} + ( 7 - 2 \beta_{1} - 2 \beta_{2} + 2 \beta_{3} ) q^{61} + ( 2 - 2 \beta_{3} ) q^{62} + ( 2 - 6 \beta_{1} + 2 \beta_{2} ) q^{63} + ( 3 + 2 \beta_{2} - 4 \beta_{3} ) q^{64} + ( 3 + \beta_{1} - \beta_{2} - 4 \beta_{3} ) q^{66} + ( -7 + \beta_{2} - \beta_{3} ) q^{67} + ( 3 - \beta_{1} - 2 \beta_{2} + 2 \beta_{3} ) q^{68} + ( -3 - 4 \beta_{1} - 2 \beta_{2} + 2 \beta_{3} ) q^{69} + ( -1 + 3 \beta_{1} - \beta_{2} ) q^{70} + ( 2 + 3 \beta_{2} - 6 \beta_{3} ) q^{71} + ( 2 - 6 \beta_{1} - 2 \beta_{2} - 4 \beta_{3} ) q^{72} + ( 2 \beta_{1} - 4 \beta_{2} + 2 \beta_{3} ) q^{73} + ( -3 - \beta_{1} + \beta_{2} + 2 \beta_{3} ) q^{74} -\beta_{3} q^{75} + ( -2 - 5 \beta_{1} - 4 \beta_{2} - \beta_{3} ) q^{76} + ( 4 + 4 \beta_{1} - 2 \beta_{2} - 3 \beta_{3} ) q^{77} + ( -6 \beta_{1} + 2 \beta_{3} ) q^{79} + ( -1 + \beta_{1} - \beta_{2} + 2 \beta_{3} ) q^{80} + ( -1 - 2 \beta_{1} + 4 \beta_{2} ) q^{81} + ( 1 + \beta_{1} - \beta_{3} ) q^{82} + ( 4 - 2 \beta_{2} - 2 \beta_{3} ) q^{83} + ( 4 + 5 \beta_{1} + 2 \beta_{2} + \beta_{3} ) q^{84} + ( 2 \beta_{2} - \beta_{3} ) q^{85} + ( 2 - \beta_{1} + \beta_{2} - \beta_{3} ) q^{86} + ( -2 - 6 \beta_{1} - 4 \beta_{2} - \beta_{3} ) q^{87} + ( -6 + 2 \beta_{2} + 3 \beta_{3} ) q^{88} + ( 8 \beta_{1} - \beta_{2} - 2 \beta_{3} ) q^{89} + ( -4 - 2 \beta_{1} - 2 \beta_{2} ) q^{90} + ( 3 + 3 \beta_{1} + 2 \beta_{3} ) q^{92} + ( -2 - 4 \beta_{1} - 2 \beta_{2} + 4 \beta_{3} ) q^{93} + ( -6 - 2 \beta_{1} - 4 \beta_{2} - 2 \beta_{3} ) q^{94} + ( -4 - \beta_{2} ) q^{95} + ( -2 + \beta_{1} + 2 \beta_{2} + \beta_{3} ) q^{96} + ( -1 - 2 \beta_{1} + \beta_{2} + 3 \beta_{3} ) q^{97} + ( 8 - 4 \beta_{1} + 6 \beta_{2} ) q^{98} + ( -6 - 2 \beta_{1} + 2 \beta_{3} ) q^{99} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$4 q - 2 q^{2} - 2 q^{3} + 2 q^{4} + 4 q^{5} + 4 q^{6} - 10 q^{7} - 6 q^{8} + 4 q^{9} + O(q^{10})$$ $$4 q - 2 q^{2} - 2 q^{3} + 2 q^{4} + 4 q^{5} + 4 q^{6} - 10 q^{7} - 6 q^{8} + 4 q^{9} - 2 q^{10} - 10 q^{12} + 2 q^{14} - 2 q^{15} + 2 q^{16} - 2 q^{17} - 20 q^{18} - 16 q^{19} + 2 q^{20} - 4 q^{21} + 12 q^{22} - 10 q^{23} + 24 q^{24} + 4 q^{25} - 2 q^{27} - 8 q^{28} + 8 q^{29} + 4 q^{30} - 8 q^{31} - 4 q^{32} - 18 q^{33} + 4 q^{34} - 10 q^{35} + 20 q^{36} + 2 q^{37} + 8 q^{38} - 6 q^{40} - 8 q^{41} - 4 q^{42} - 2 q^{43} - 12 q^{44} + 4 q^{45} - 16 q^{46} - 8 q^{47} - 28 q^{48} + 12 q^{49} - 2 q^{50} + 4 q^{51} - 12 q^{53} + 16 q^{54} + 12 q^{56} + 14 q^{57} - 22 q^{58} - 12 q^{59} - 10 q^{60} + 28 q^{61} + 4 q^{62} - 4 q^{63} + 4 q^{64} + 6 q^{66} - 30 q^{67} + 14 q^{68} - 16 q^{69} + 2 q^{70} - 4 q^{71} - 12 q^{72} + 8 q^{73} - 10 q^{74} - 2 q^{75} - 20 q^{76} + 18 q^{77} - 8 q^{79} + 2 q^{80} - 8 q^{81} + 4 q^{82} + 12 q^{83} + 28 q^{84} - 2 q^{85} + 4 q^{86} - 22 q^{87} - 18 q^{88} + 12 q^{89} - 20 q^{90} + 22 q^{92} - 8 q^{93} - 32 q^{94} - 16 q^{95} - 4 q^{96} - 2 q^{97} + 24 q^{98} - 24 q^{99} + O(q^{100})$$

Basis of coefficient ring in terms of a root $$\nu$$ of $$x^{4} - 2 x^{3} - 3 x^{2} + 4 x + 1$$:

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

## 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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
1.1
 2.49551 1.21969 −0.219687 −1.49551
−2.49551 −2.82684 4.22756 1.00000 7.05440 −1.90521 −5.55889 4.99102 −2.49551
1.2 −1.21969 2.33225 −0.512364 1.00000 −2.84461 −3.60020 3.06430 2.43937 −1.21969
1.3 0.219687 −1.60020 −1.95174 1.00000 −0.351542 0.332247 −0.868145 −0.439374 0.219687
1.4 1.49551 0.0947876 0.236543 1.00000 0.141756 −4.82684 −2.63726 −2.99102 1.49551
 $$n$$: e.g. 2-40 or 990-1000 Significant digits: Format: Complex embeddings Normalized embeddings Satake parameters Satake angles

## Atkin-Lehner signs

$$p$$ Sign
$$5$$ $$-1$$
$$13$$ $$-1$$

## Inner twists

This newform does not admit any (nontrivial) inner twists.

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 845.2.a.l 4
3.b odd 2 1 7605.2.a.cj 4
5.b even 2 1 4225.2.a.bl 4
13.b even 2 1 845.2.a.m 4
13.c even 3 2 845.2.e.n 8
13.d odd 4 2 845.2.c.g 8
13.e even 6 2 845.2.e.m 8
13.f odd 12 2 65.2.m.a 8
13.f odd 12 2 845.2.m.g 8
39.d odd 2 1 7605.2.a.cf 4
39.k even 12 2 585.2.bu.c 8
52.l even 12 2 1040.2.da.b 8
65.d even 2 1 4225.2.a.bi 4
65.o even 12 2 325.2.m.c 8
65.s odd 12 2 325.2.n.d 8
65.t even 12 2 325.2.m.b 8

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
65.2.m.a 8 13.f odd 12 2
325.2.m.b 8 65.t even 12 2
325.2.m.c 8 65.o even 12 2
325.2.n.d 8 65.s odd 12 2
585.2.bu.c 8 39.k even 12 2
845.2.a.l 4 1.a even 1 1 trivial
845.2.a.m 4 13.b even 2 1
845.2.c.g 8 13.d odd 4 2
845.2.e.m 8 13.e even 6 2
845.2.e.n 8 13.c even 3 2
845.2.m.g 8 13.f odd 12 2
1040.2.da.b 8 52.l even 12 2
4225.2.a.bi 4 65.d even 2 1
4225.2.a.bl 4 5.b even 2 1
7605.2.a.cf 4 39.d odd 2 1
7605.2.a.cj 4 3.b odd 2 1

## Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator $$T_{2}^{4} + 2 T_{2}^{3} - 3 T_{2}^{2} - 4 T_{2} + 1$$ acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(845))$$.

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$1 - 4 T - 3 T^{2} + 2 T^{3} + T^{4}$$
$3$ $$1 - 10 T - 6 T^{2} + 2 T^{3} + T^{4}$$
$5$ $$( -1 + T )^{4}$$
$7$ $$-11 + 22 T + 30 T^{2} + 10 T^{3} + T^{4}$$
$11$ $$33 - 30 T^{2} + T^{4}$$
$13$ $$T^{4}$$
$17$ $$13 - 10 T - 18 T^{2} + 2 T^{3} + T^{4}$$
$19$ $$( 13 + 8 T + T^{2} )^{2}$$
$23$ $$-299 - 146 T + 6 T^{2} + 10 T^{3} + T^{4}$$
$29$ $$1 + 40 T - 18 T^{2} - 8 T^{3} + T^{4}$$
$31$ $$( -8 + 4 T + T^{2} )^{2}$$
$37$ $$1 - 38 T - 54 T^{2} - 2 T^{3} + T^{4}$$
$41$ $$( 1 + 4 T + T^{2} )^{2}$$
$43$ $$13 - 10 T - 18 T^{2} + 2 T^{3} + T^{4}$$
$47$ $$-1328 - 736 T - 72 T^{2} + 8 T^{3} + T^{4}$$
$53$ $$-48 + 36 T^{2} + 12 T^{3} + T^{4}$$
$59$ $$-3 + 12 T + 30 T^{2} + 12 T^{3} + T^{4}$$
$61$ $$1261 - 964 T + 258 T^{2} - 28 T^{3} + T^{4}$$
$67$ $$2769 + 1578 T + 330 T^{2} + 30 T^{3} + T^{4}$$
$71$ $$10477 - 428 T - 210 T^{2} + 4 T^{3} + T^{4}$$
$73$ $$-1712 + 832 T - 84 T^{2} - 8 T^{3} + T^{4}$$
$79$ $$4432 - 640 T - 132 T^{2} + 8 T^{3} + T^{4}$$
$83$ $$-192 + 288 T - 24 T^{2} - 12 T^{3} + T^{4}$$
$89$ $$8853 + 2148 T - 234 T^{2} - 12 T^{3} + T^{4}$$
$97$ $$-443 + 374 T - 90 T^{2} + 2 T^{3} + T^{4}$$