# Properties

 Label 260.2.bk.b Level $260$ Weight $2$ Character orbit 260.bk Analytic conductor $2.076$ Analytic rank $0$ Dimension $4$ CM no Inner twists $2$

# Related objects

## Newspace parameters

 Level: $$N$$ $$=$$ $$260 = 2^{2} \cdot 5 \cdot 13$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 260.bk (of order $$12$$, degree $$4$$, minimal)

## Newform invariants

 Self dual: no Analytic conductor: $$2.07611045255$$ Analytic rank: $$0$$ Dimension: $$4$$ Coefficient field: $$\Q(\zeta_{12})$$ Defining polynomial: $$x^{4} - x^{2} + 1$$ x^4 - x^2 + 1 Coefficient ring: $$\Z[a_1, a_2, a_3]$$ Coefficient ring index: $$1$$ Twist minimal: yes Sato-Tate group: $\mathrm{SU}(2)[C_{12}]$

## $q$-expansion

Coefficients of the $$q$$-expansion are expressed in terms of a primitive root of unity $$\zeta_{12}$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q + (\zeta_{12} + 1) q^{3} + ( - 2 \zeta_{12}^{3} - 1) q^{5} + (\zeta_{12}^{2} + 2 \zeta_{12} + 1) q^{7} + (\zeta_{12}^{2} - \zeta_{12} + 1) q^{9}+O(q^{10})$$ q + (z + 1) * q^3 + (-2*z^3 - 1) * q^5 + (z^2 + 2*z + 1) * q^7 + (z^2 - z + 1) * q^9 $$q + (\zeta_{12} + 1) q^{3} + ( - 2 \zeta_{12}^{3} - 1) q^{5} + (\zeta_{12}^{2} + 2 \zeta_{12} + 1) q^{7} + (\zeta_{12}^{2} - \zeta_{12} + 1) q^{9} + (2 \zeta_{12}^{3} + 2 \zeta_{12}^{2} - 3 \zeta_{12} + 1) q^{11} + ( - 2 \zeta_{12}^{3} + 3) q^{13} + ( - 2 \zeta_{12}^{3} - 2 \zeta_{12}^{2} - \zeta_{12} + 1) q^{15} + ( - 3 \zeta_{12}^{3} - 2 \zeta_{12}^{2} + \zeta_{12} - 1) q^{17} + (\zeta_{12}^{3} - 2 \zeta_{12}^{2} + \zeta_{12} + 1) q^{19} + (\zeta_{12}^{3} + 3 \zeta_{12}^{2} + 3 \zeta_{12} + 1) q^{21} + (4 \zeta_{12}^{3} + 4 \zeta_{12}^{2} - \zeta_{12} - 3) q^{23} + (4 \zeta_{12}^{3} - 3) q^{25} + (\zeta_{12}^{3} - 3 \zeta_{12}^{2} - 3 \zeta_{12} + 1) q^{27} + (4 \zeta_{12}^{3} + 3 \zeta_{12}^{2} - 4 \zeta_{12} - 6) q^{29} + ( - 5 \zeta_{12}^{3} - 2 \zeta_{12}^{2} + 2 \zeta_{12} + 5) q^{31} + (4 \zeta_{12}^{3} + \zeta_{12}^{2} - 2 \zeta_{12} - 1) q^{33} + ( - 4 \zeta_{12}^{3} - 5 \zeta_{12}^{2} + 3) q^{35} + ( - 2 \zeta_{12}^{3} + \zeta_{12}^{2} + 2 \zeta_{12} - 2) q^{37} + ( - 2 \zeta_{12}^{3} - 2 \zeta_{12}^{2} + 3 \zeta_{12} + 5) q^{39} + ( - 4 \zeta_{12}^{3} + 4 \zeta_{12}^{2} + \zeta_{12} - 3) q^{41} + (9 \zeta_{12}^{3} - 4 \zeta_{12}^{2} - 5 \zeta_{12} - 5) q^{43} + ( - 4 \zeta_{12}^{3} + \zeta_{12}^{2} + 3 \zeta_{12} - 3) q^{45} + ( - 4 \zeta_{12}^{3} + 4 \zeta_{12}^{2} - 2) q^{47} + (4 \zeta_{12}^{3} + 4 \zeta_{12}) q^{49} + ( - 5 \zeta_{12}^{3} - 4 \zeta_{12}^{2} + 2) q^{51} + (3 \zeta_{12}^{3} - 4 \zeta_{12}^{2} + 4 \zeta_{12} - 3) q^{53} + ( - 8 \zeta_{12}^{3} + 4 \zeta_{12}^{2} + 7 \zeta_{12} - 3) q^{55} + ( - \zeta_{12}^{3} + 2 \zeta_{12}) q^{57} + (3 \zeta_{12}^{3} - 6 \zeta_{12}^{2} - 9 \zeta_{12} + 9) q^{59} + ( - \zeta_{12}^{2} + 1) q^{61} + (\zeta_{12}^{3} + \zeta_{12}^{2} + \zeta_{12}) q^{63} + ( - 4 \zeta_{12}^{3} - 7) q^{65} + (2 \zeta_{12}^{3} - 9 \zeta_{12}^{2} + 2 \zeta_{12}) q^{67} + (8 \zeta_{12}^{3} + 7 \zeta_{12}^{2} - 4 \zeta_{12} - 7) q^{69} + (3 \zeta_{12}^{3} + 2 \zeta_{12}^{2} - \zeta_{12} + 1) q^{71} + (4 \zeta_{12}^{3} - 8 \zeta_{12} - 6) q^{73} + (4 \zeta_{12}^{3} + 4 \zeta_{12}^{2} - 3 \zeta_{12} - 7) q^{75} + (5 \zeta_{12}^{3} + 3 \zeta_{12}^{2} - 3 \zeta_{12} - 5) q^{77} + (8 \zeta_{12}^{3} - 4 \zeta_{12}^{2} + 2) q^{79} + ( - 5 \zeta_{12}^{3} - 2 \zeta_{12}^{2} - 5 \zeta_{12}) q^{81} + ( - 4 \zeta_{12}^{2} + 2) q^{83} + (9 \zeta_{12}^{3} - 5 \zeta_{12} - 3) q^{85} + (7 \zeta_{12}^{3} + 3 \zeta_{12}^{2} - 10 \zeta_{12} - 10) q^{87} + ( - 4 \zeta_{12}^{3} + 4 \zeta_{12}^{2} + 9 \zeta_{12} + 5) q^{89} + ( - 4 \zeta_{12}^{3} - \zeta_{12}^{2} + 8 \zeta_{12} + 7) q^{91} + ( - 7 \zeta_{12}^{3} - 5 \zeta_{12}^{2} + 7 \zeta_{12} + 10) q^{93} + (\zeta_{12}^{3} - 5 \zeta_{12} + 3) q^{95} + (4 \zeta_{12}^{3} + \zeta_{12}^{2} - 2 \zeta_{12} - 1) q^{97} + ( - \zeta_{12}^{3} + 6 \zeta_{12}^{2} - 6 \zeta_{12} + 1) q^{99}+O(q^{100})$$ q + (z + 1) * q^3 + (-2*z^3 - 1) * q^5 + (z^2 + 2*z + 1) * q^7 + (z^2 - z + 1) * q^9 + (2*z^3 + 2*z^2 - 3*z + 1) * q^11 + (-2*z^3 + 3) * q^13 + (-2*z^3 - 2*z^2 - z + 1) * q^15 + (-3*z^3 - 2*z^2 + z - 1) * q^17 + (z^3 - 2*z^2 + z + 1) * q^19 + (z^3 + 3*z^2 + 3*z + 1) * q^21 + (4*z^3 + 4*z^2 - z - 3) * q^23 + (4*z^3 - 3) * q^25 + (z^3 - 3*z^2 - 3*z + 1) * q^27 + (4*z^3 + 3*z^2 - 4*z - 6) * q^29 + (-5*z^3 - 2*z^2 + 2*z + 5) * q^31 + (4*z^3 + z^2 - 2*z - 1) * q^33 + (-4*z^3 - 5*z^2 + 3) * q^35 + (-2*z^3 + z^2 + 2*z - 2) * q^37 + (-2*z^3 - 2*z^2 + 3*z + 5) * q^39 + (-4*z^3 + 4*z^2 + z - 3) * q^41 + (9*z^3 - 4*z^2 - 5*z - 5) * q^43 + (-4*z^3 + z^2 + 3*z - 3) * q^45 + (-4*z^3 + 4*z^2 - 2) * q^47 + (4*z^3 + 4*z) * q^49 + (-5*z^3 - 4*z^2 + 2) * q^51 + (3*z^3 - 4*z^2 + 4*z - 3) * q^53 + (-8*z^3 + 4*z^2 + 7*z - 3) * q^55 + (-z^3 + 2*z) * q^57 + (3*z^3 - 6*z^2 - 9*z + 9) * q^59 + (-z^2 + 1) * q^61 + (z^3 + z^2 + z) * q^63 + (-4*z^3 - 7) * q^65 + (2*z^3 - 9*z^2 + 2*z) * q^67 + (8*z^3 + 7*z^2 - 4*z - 7) * q^69 + (3*z^3 + 2*z^2 - z + 1) * q^71 + (4*z^3 - 8*z - 6) * q^73 + (4*z^3 + 4*z^2 - 3*z - 7) * q^75 + (5*z^3 + 3*z^2 - 3*z - 5) * q^77 + (8*z^3 - 4*z^2 + 2) * q^79 + (-5*z^3 - 2*z^2 - 5*z) * q^81 + (-4*z^2 + 2) * q^83 + (9*z^3 - 5*z - 3) * q^85 + (7*z^3 + 3*z^2 - 10*z - 10) * q^87 + (-4*z^3 + 4*z^2 + 9*z + 5) * q^89 + (-4*z^3 - z^2 + 8*z + 7) * q^91 + (-7*z^3 - 5*z^2 + 7*z + 10) * q^93 + (z^3 - 5*z + 3) * q^95 + (4*z^3 + z^2 - 2*z - 1) * q^97 + (-z^3 + 6*z^2 - 6*z + 1) * q^99 $$\operatorname{Tr}(f)(q)$$ $$=$$ $$4 q + 4 q^{3} - 4 q^{5} + 6 q^{7} + 6 q^{9}+O(q^{10})$$ 4 * q + 4 * q^3 - 4 * q^5 + 6 * q^7 + 6 * q^9 $$4 q + 4 q^{3} - 4 q^{5} + 6 q^{7} + 6 q^{9} + 8 q^{11} + 12 q^{13} - 8 q^{17} + 10 q^{21} - 4 q^{23} - 12 q^{25} - 2 q^{27} - 18 q^{29} + 16 q^{31} - 2 q^{33} + 2 q^{35} - 6 q^{37} + 16 q^{39} - 4 q^{41} - 28 q^{43} - 10 q^{45} - 20 q^{53} - 4 q^{55} + 24 q^{59} + 2 q^{61} + 2 q^{63} - 28 q^{65} - 18 q^{67} - 14 q^{69} + 8 q^{71} - 24 q^{73} - 20 q^{75} - 14 q^{77} - 4 q^{81} - 12 q^{85} - 34 q^{87} + 28 q^{89} + 26 q^{91} + 30 q^{93} + 12 q^{95} - 2 q^{97} + 16 q^{99}+O(q^{100})$$ 4 * q + 4 * q^3 - 4 * q^5 + 6 * q^7 + 6 * q^9 + 8 * q^11 + 12 * q^13 - 8 * q^17 + 10 * q^21 - 4 * q^23 - 12 * q^25 - 2 * q^27 - 18 * q^29 + 16 * q^31 - 2 * q^33 + 2 * q^35 - 6 * q^37 + 16 * q^39 - 4 * q^41 - 28 * q^43 - 10 * q^45 - 20 * q^53 - 4 * q^55 + 24 * q^59 + 2 * q^61 + 2 * q^63 - 28 * q^65 - 18 * q^67 - 14 * q^69 + 8 * q^71 - 24 * q^73 - 20 * q^75 - 14 * q^77 - 4 * q^81 - 12 * q^85 - 34 * q^87 + 28 * q^89 + 26 * q^91 + 30 * q^93 + 12 * q^95 - 2 * q^97 + 16 * q^99

## Character values

We give the values of $$\chi$$ on generators for $$\left(\mathbb{Z}/260\mathbb{Z}\right)^\times$$.

 $$n$$ $$41$$ $$131$$ $$157$$ $$\chi(n)$$ $$\zeta_{12}$$ $$1$$ $$\zeta_{12}^{3}$$

## 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 $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
33.1
 0.866025 − 0.500000i −0.866025 + 0.500000i −0.866025 − 0.500000i 0.866025 + 0.500000i
0 1.86603 0.500000i 0 −1.00000 + 2.00000i 0 3.23205 1.86603i 0 0.633975 0.366025i 0
97.1 0 0.133975 + 0.500000i 0 −1.00000 2.00000i 0 −0.232051 + 0.133975i 0 2.36603 1.36603i 0
193.1 0 0.133975 0.500000i 0 −1.00000 + 2.00000i 0 −0.232051 0.133975i 0 2.36603 + 1.36603i 0
197.1 0 1.86603 + 0.500000i 0 −1.00000 2.00000i 0 3.23205 + 1.86603i 0 0.633975 + 0.366025i 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
65.o even 12 1 inner

## Twists

By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 260.2.bk.b yes 4
5.b even 2 1 1300.2.bs.a 4
5.c odd 4 1 260.2.bf.a 4
5.c odd 4 1 1300.2.bn.b 4
13.f odd 12 1 260.2.bf.a 4
65.o even 12 1 inner 260.2.bk.b yes 4
65.s odd 12 1 1300.2.bn.b 4
65.t even 12 1 1300.2.bs.a 4

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
260.2.bf.a 4 5.c odd 4 1
260.2.bf.a 4 13.f odd 12 1
260.2.bk.b yes 4 1.a even 1 1 trivial
260.2.bk.b yes 4 65.o even 12 1 inner
1300.2.bn.b 4 5.c odd 4 1
1300.2.bn.b 4 65.s odd 12 1
1300.2.bs.a 4 5.b even 2 1
1300.2.bs.a 4 65.t even 12 1

## Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator $$T_{3}^{4} - 4T_{3}^{3} + 5T_{3}^{2} - 2T_{3} + 1$$ acting on $$S_{2}^{\mathrm{new}}(260, [\chi])$$.

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{4}$$
$3$ $$T^{4} - 4 T^{3} + 5 T^{2} - 2 T + 1$$
$5$ $$(T^{2} + 2 T + 5)^{2}$$
$7$ $$T^{4} - 6 T^{3} + 11 T^{2} + 6 T + 1$$
$11$ $$T^{4} - 8 T^{3} + 17 T^{2} - 22 T + 121$$
$13$ $$(T^{2} - 6 T + 13)^{2}$$
$17$ $$T^{4} + 8 T^{3} + 41 T^{2} + 130 T + 169$$
$19$ $$T^{4} + 9 T^{2} - 18 T + 9$$
$23$ $$T^{4} + 4 T^{3} + 53 T^{2} + 14 T + 1$$
$29$ $$T^{4} + 18 T^{3} + 119 T^{2} + \cdots + 121$$
$31$ $$T^{4} - 16 T^{3} + 128 T^{2} + \cdots + 676$$
$37$ $$T^{4} + 6 T^{3} + 11 T^{2} - 6 T + 1$$
$41$ $$T^{4} + 4 T^{3} + 53 T^{2} + 14 T + 1$$
$43$ $$T^{4} + 28 T^{3} + 365 T^{2} + \cdots + 14641$$
$47$ $$T^{4} + 56T^{2} + 16$$
$53$ $$T^{4} + 20 T^{3} + 200 T^{2} + \cdots + 676$$
$59$ $$T^{4} - 24 T^{3} + 153 T^{2} + \cdots + 9801$$
$61$ $$(T^{2} - T + 1)^{2}$$
$67$ $$T^{4} + 18 T^{3} + 255 T^{2} + \cdots + 4761$$
$71$ $$T^{4} - 8 T^{3} + 41 T^{2} - 130 T + 169$$
$73$ $$(T^{2} + 12 T - 12)^{2}$$
$79$ $$T^{4} + 152T^{2} + 2704$$
$83$ $$(T^{2} + 12)^{2}$$
$89$ $$T^{4} - 28 T^{3} + 197 T^{2} + \cdots + 2209$$
$97$ $$T^{4} + 2 T^{3} + 15 T^{2} - 22 T + 121$$