# Properties

 Label 847.2.a.d Level $847$ Weight $2$ Character orbit 847.a Self dual yes Analytic conductor $6.763$ Analytic rank $1$ Dimension $2$ CM no Inner twists $1$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$847 = 7 \cdot 11^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 847.a (trivial)

## Newform invariants

 Self dual: yes Analytic conductor: $$6.76332905120$$ Analytic rank: $$1$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{5})$$ Defining polynomial: $$x^{2} - x - 1$$ Coefficient ring: $$\Z[a_1, a_2]$$ Coefficient ring index: $$1$$ Twist minimal: yes Fricke sign: $$1$$ Sato-Tate group: $\mathrm{SU}(2)$

## $q$-expansion

Coefficients of the $$q$$-expansion are expressed in terms of $$\beta = \frac{1}{2}(1 + \sqrt{5})$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q + ( -1 - \beta ) q^{2} + ( -1 + \beta ) q^{3} + 3 \beta q^{4} + q^{5} -\beta q^{6} + q^{7} + ( -1 - 4 \beta ) q^{8} + ( -1 - \beta ) q^{9} +O(q^{10})$$ $$q + ( -1 - \beta ) q^{2} + ( -1 + \beta ) q^{3} + 3 \beta q^{4} + q^{5} -\beta q^{6} + q^{7} + ( -1 - 4 \beta ) q^{8} + ( -1 - \beta ) q^{9} + ( -1 - \beta ) q^{10} + 3 q^{12} + 2 \beta q^{13} + ( -1 - \beta ) q^{14} + ( -1 + \beta ) q^{15} + ( 5 + 3 \beta ) q^{16} -5 \beta q^{17} + ( 2 + 3 \beta ) q^{18} + ( -3 - 2 \beta ) q^{19} + 3 \beta q^{20} + ( -1 + \beta ) q^{21} + ( 2 - 5 \beta ) q^{23} + ( -3 - \beta ) q^{24} -4 q^{25} + ( -2 - 4 \beta ) q^{26} + ( 3 - 4 \beta ) q^{27} + 3 \beta q^{28} + ( -4 + \beta ) q^{29} -\beta q^{30} + ( -3 + 2 \beta ) q^{31} + ( -6 - 3 \beta ) q^{32} + ( 5 + 10 \beta ) q^{34} + q^{35} + ( -3 - 6 \beta ) q^{36} + ( 4 - 4 \beta ) q^{37} + ( 5 + 7 \beta ) q^{38} + 2 q^{39} + ( -1 - 4 \beta ) q^{40} + ( -5 + 10 \beta ) q^{41} -\beta q^{42} + ( -7 + 9 \beta ) q^{43} + ( -1 - \beta ) q^{45} + ( 3 + 8 \beta ) q^{46} + ( -6 + \beta ) q^{47} + ( -2 + 5 \beta ) q^{48} + q^{49} + ( 4 + 4 \beta ) q^{50} -5 q^{51} + ( 6 + 6 \beta ) q^{52} + ( -3 - \beta ) q^{53} + ( 1 + 5 \beta ) q^{54} + ( -1 - 4 \beta ) q^{56} + ( 1 - 3 \beta ) q^{57} + ( 3 + 2 \beta ) q^{58} + ( 8 - 5 \beta ) q^{59} + 3 q^{60} + ( -7 + \beta ) q^{61} + ( 1 - \beta ) q^{62} + ( -1 - \beta ) q^{63} + ( -1 + 6 \beta ) q^{64} + 2 \beta q^{65} + ( -4 + 7 \beta ) q^{67} + ( -15 - 15 \beta ) q^{68} + ( -7 + 2 \beta ) q^{69} + ( -1 - \beta ) q^{70} + ( -13 + 5 \beta ) q^{71} + ( 5 + 9 \beta ) q^{72} + ( -13 + 2 \beta ) q^{73} + 4 \beta q^{74} + ( 4 - 4 \beta ) q^{75} + ( -6 - 15 \beta ) q^{76} + ( -2 - 2 \beta ) q^{78} + ( 7 + \beta ) q^{79} + ( 5 + 3 \beta ) q^{80} + ( -4 + 6 \beta ) q^{81} + ( -5 - 15 \beta ) q^{82} + ( -1 - 6 \beta ) q^{83} + 3 q^{84} -5 \beta q^{85} + ( -2 - 11 \beta ) q^{86} + ( 5 - 4 \beta ) q^{87} + ( 5 - 3 \beta ) q^{89} + ( 2 + 3 \beta ) q^{90} + 2 \beta q^{91} + ( -15 - 9 \beta ) q^{92} + ( 5 - 3 \beta ) q^{93} + ( 5 + 4 \beta ) q^{94} + ( -3 - 2 \beta ) q^{95} + ( 3 - 6 \beta ) q^{96} + 7 q^{97} + ( -1 - \beta ) q^{98} +O(q^{100})$$ $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2 q - 3 q^{2} - q^{3} + 3 q^{4} + 2 q^{5} - q^{6} + 2 q^{7} - 6 q^{8} - 3 q^{9} + O(q^{10})$$ $$2 q - 3 q^{2} - q^{3} + 3 q^{4} + 2 q^{5} - q^{6} + 2 q^{7} - 6 q^{8} - 3 q^{9} - 3 q^{10} + 6 q^{12} + 2 q^{13} - 3 q^{14} - q^{15} + 13 q^{16} - 5 q^{17} + 7 q^{18} - 8 q^{19} + 3 q^{20} - q^{21} - q^{23} - 7 q^{24} - 8 q^{25} - 8 q^{26} + 2 q^{27} + 3 q^{28} - 7 q^{29} - q^{30} - 4 q^{31} - 15 q^{32} + 20 q^{34} + 2 q^{35} - 12 q^{36} + 4 q^{37} + 17 q^{38} + 4 q^{39} - 6 q^{40} - q^{42} - 5 q^{43} - 3 q^{45} + 14 q^{46} - 11 q^{47} + q^{48} + 2 q^{49} + 12 q^{50} - 10 q^{51} + 18 q^{52} - 7 q^{53} + 7 q^{54} - 6 q^{56} - q^{57} + 8 q^{58} + 11 q^{59} + 6 q^{60} - 13 q^{61} + q^{62} - 3 q^{63} + 4 q^{64} + 2 q^{65} - q^{67} - 45 q^{68} - 12 q^{69} - 3 q^{70} - 21 q^{71} + 19 q^{72} - 24 q^{73} + 4 q^{74} + 4 q^{75} - 27 q^{76} - 6 q^{78} + 15 q^{79} + 13 q^{80} - 2 q^{81} - 25 q^{82} - 8 q^{83} + 6 q^{84} - 5 q^{85} - 15 q^{86} + 6 q^{87} + 7 q^{89} + 7 q^{90} + 2 q^{91} - 39 q^{92} + 7 q^{93} + 14 q^{94} - 8 q^{95} + 14 q^{97} - 3 q^{98} + O(q^{100})$$

## 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
 1.61803 −0.618034
−2.61803 0.618034 4.85410 1.00000 −1.61803 1.00000 −7.47214 −2.61803 −2.61803
1.2 −0.381966 −1.61803 −1.85410 1.00000 0.618034 1.00000 1.47214 −0.381966 −0.381966
 $$n$$: e.g. 2-40 or 990-1000 Significant digits: Format: Complex embeddings Normalized embeddings Satake parameters Satake angles

## Atkin-Lehner signs

$$p$$ Sign
$$7$$ $$-1$$
$$11$$ $$-1$$

## 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 847.2.a.d 2
3.b odd 2 1 7623.2.a.bx 2
7.b odd 2 1 5929.2.a.i 2
11.b odd 2 1 847.2.a.h yes 2
11.c even 5 2 847.2.f.d 4
11.c even 5 2 847.2.f.l 4
11.d odd 10 2 847.2.f.c 4
11.d odd 10 2 847.2.f.j 4
33.d even 2 1 7623.2.a.t 2
77.b even 2 1 5929.2.a.s 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
847.2.a.d 2 1.a even 1 1 trivial
847.2.a.h yes 2 11.b odd 2 1
847.2.f.c 4 11.d odd 10 2
847.2.f.d 4 11.c even 5 2
847.2.f.j 4 11.d odd 10 2
847.2.f.l 4 11.c even 5 2
5929.2.a.i 2 7.b odd 2 1
5929.2.a.s 2 77.b even 2 1
7623.2.a.t 2 33.d even 2 1
7623.2.a.bx 2 3.b odd 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(847))$$:

 $$T_{2}^{2} + 3 T_{2} + 1$$ $$T_{3}^{2} + T_{3} - 1$$

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$1 + 3 T + T^{2}$$
$3$ $$-1 + T + T^{2}$$
$5$ $$( -1 + T )^{2}$$
$7$ $$( -1 + T )^{2}$$
$11$ $$T^{2}$$
$13$ $$-4 - 2 T + T^{2}$$
$17$ $$-25 + 5 T + T^{2}$$
$19$ $$11 + 8 T + T^{2}$$
$23$ $$-31 + T + T^{2}$$
$29$ $$11 + 7 T + T^{2}$$
$31$ $$-1 + 4 T + T^{2}$$
$37$ $$-16 - 4 T + T^{2}$$
$41$ $$-125 + T^{2}$$
$43$ $$-95 + 5 T + T^{2}$$
$47$ $$29 + 11 T + T^{2}$$
$53$ $$11 + 7 T + T^{2}$$
$59$ $$-1 - 11 T + T^{2}$$
$61$ $$41 + 13 T + T^{2}$$
$67$ $$-61 + T + T^{2}$$
$71$ $$79 + 21 T + T^{2}$$
$73$ $$139 + 24 T + T^{2}$$
$79$ $$55 - 15 T + T^{2}$$
$83$ $$-29 + 8 T + T^{2}$$
$89$ $$1 - 7 T + T^{2}$$
$97$ $$( -7 + T )^{2}$$