# Properties

 Label 2320.2.a.r Level $2320$ Weight $2$ Character orbit 2320.a Self dual yes Analytic conductor $18.525$ Analytic rank $0$ Dimension $3$ CM no Inner twists $1$

# Related objects

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [2320,2,Mod(1,2320)]

mf = mfinit([N,k,chi],0)

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(2320, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))

N = Newforms(chi, 2, names="a")

//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code

chi := DirichletCharacter("2320.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$2320 = 2^{4} \cdot 5 \cdot 29$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 2320.a (trivial)

## Newform invariants

comment: select newform

sage: f = N[0] # Warning: the index may be different

gp: f = lf[1] \\ Warning: the index may be different

 Self dual: yes Analytic conductor: $$18.5252932689$$ Analytic rank: $$0$$ Dimension: $$3$$ Coefficient field: 3.3.148.1 comment: defining polynomial  gp: f.mod \\ as an extension of the character field Defining polynomial: $$x^{3} - x^{2} - 3x + 1$$ x^3 - x^2 - 3*x + 1 Coefficient ring: $$\Z[a_1, a_2, a_3]$$ Coefficient ring index: $$2$$ Twist minimal: no (minimal twist has level 1160) Fricke sign: $$-1$$ Sato-Tate group: $\mathrm{SU}(2)$

## $q$-expansion

comment: q-expansion

sage: f.q_expansion() # note that sage often uses an isomorphic number field

gp: mfcoefs(f, 20)

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

 $$f(q)$$ $$=$$ $$q + ( - \beta_1 + 1) q^{3} - q^{5} + (\beta_{2} - 1) q^{7} + (\beta_{2} - \beta_1 + 1) q^{9}+O(q^{10})$$ q + (-b1 + 1) * q^3 - q^5 + (b2 - 1) * q^7 + (b2 - b1 + 1) * q^9 $$q + ( - \beta_1 + 1) q^{3} - q^{5} + (\beta_{2} - 1) q^{7} + (\beta_{2} - \beta_1 + 1) q^{9} + (\beta_1 + 1) q^{11} + (\beta_{2} - \beta_1 - 2) q^{13} + (\beta_1 - 1) q^{15} + ( - \beta_{2} - 2 \beta_1 + 1) q^{17} + ( - \beta_{2} + 3) q^{19} + (\beta_{2} - \beta_1) q^{21} + ( - \beta_1 + 1) q^{23} + q^{25} + (2 \beta_{2} + 2) q^{27} + q^{29} + ( - \beta_{2} + 2 \beta_1 + 1) q^{31} + ( - \beta_{2} - \beta_1 - 2) q^{33} + ( - \beta_{2} + 1) q^{35} + ( - \beta_{2} - 1) q^{37} + (2 \beta_{2} + 2) q^{39} + (\beta_{2} + \beta_1 + 4) q^{41} + ( - 3 \beta_1 + 7) q^{43} + ( - \beta_{2} + \beta_1 - 1) q^{45} + ( - 2 \beta_{2} - 3 \beta_1 + 1) q^{47} + ( - 3 \beta_{2} - \beta_1 + 1) q^{49} + (\beta_{2} + \beta_1 + 6) q^{51} + (3 \beta_{2} + 3 \beta_1 - 4) q^{53} + ( - \beta_1 - 1) q^{55} + ( - \beta_{2} - \beta_1 + 2) q^{57} + ( - \beta_{2} - 3 \beta_1 + 4) q^{59} + ( - 3 \beta_{2} - \beta_1 - 2) q^{61} + ( - \beta_{2} - 2 \beta_1 + 7) q^{63} + ( - \beta_{2} + \beta_1 + 2) q^{65} + ( - 2 \beta_{2} + \beta_1 + 9) q^{67} + (\beta_{2} - \beta_1 + 4) q^{69} + (\beta_{2} + 3 \beta_1) q^{71} + (\beta_1 - 7) q^{73} + ( - \beta_1 + 1) q^{75} + (\beta_{2} + \beta_1 - 2) q^{77} + ( - 4 \beta_{2} - \beta_1 + 3) q^{79} + ( - \beta_{2} - 3 \beta_1 + 1) q^{81} + (5 \beta_{2} + 3) q^{83} + (\beta_{2} + 2 \beta_1 - 1) q^{85} + ( - \beta_1 + 1) q^{87} + ( - 2 \beta_1 + 8) q^{89} + ( - 4 \beta_{2} - 2 \beta_1 + 10) q^{91} + ( - 3 \beta_{2} + \beta_1 - 6) q^{93} + (\beta_{2} - 3) q^{95} + (4 \beta_{2} + 3 \beta_1 - 1) q^{97} + (\beta_1 - 3) q^{99}+O(q^{100})$$ q + (-b1 + 1) * q^3 - q^5 + (b2 - 1) * q^7 + (b2 - b1 + 1) * q^9 + (b1 + 1) * q^11 + (b2 - b1 - 2) * q^13 + (b1 - 1) * q^15 + (-b2 - 2*b1 + 1) * q^17 + (-b2 + 3) * q^19 + (b2 - b1) * q^21 + (-b1 + 1) * q^23 + q^25 + (2*b2 + 2) * q^27 + q^29 + (-b2 + 2*b1 + 1) * q^31 + (-b2 - b1 - 2) * q^33 + (-b2 + 1) * q^35 + (-b2 - 1) * q^37 + (2*b2 + 2) * q^39 + (b2 + b1 + 4) * q^41 + (-3*b1 + 7) * q^43 + (-b2 + b1 - 1) * q^45 + (-2*b2 - 3*b1 + 1) * q^47 + (-3*b2 - b1 + 1) * q^49 + (b2 + b1 + 6) * q^51 + (3*b2 + 3*b1 - 4) * q^53 + (-b1 - 1) * q^55 + (-b2 - b1 + 2) * q^57 + (-b2 - 3*b1 + 4) * q^59 + (-3*b2 - b1 - 2) * q^61 + (-b2 - 2*b1 + 7) * q^63 + (-b2 + b1 + 2) * q^65 + (-2*b2 + b1 + 9) * q^67 + (b2 - b1 + 4) * q^69 + (b2 + 3*b1) * q^71 + (b1 - 7) * q^73 + (-b1 + 1) * q^75 + (b2 + b1 - 2) * q^77 + (-4*b2 - b1 + 3) * q^79 + (-b2 - 3*b1 + 1) * q^81 + (5*b2 + 3) * q^83 + (b2 + 2*b1 - 1) * q^85 + (-b1 + 1) * q^87 + (-2*b1 + 8) * q^89 + (-4*b2 - 2*b1 + 10) * q^91 + (-3*b2 + b1 - 6) * q^93 + (b2 - 3) * q^95 + (4*b2 + 3*b1 - 1) * q^97 + (b1 - 3) * q^99 $$\operatorname{Tr}(f)(q)$$ $$=$$ $$3 q + 2 q^{3} - 3 q^{5} - 2 q^{7} + 3 q^{9}+O(q^{10})$$ 3 * q + 2 * q^3 - 3 * q^5 - 2 * q^7 + 3 * q^9 $$3 q + 2 q^{3} - 3 q^{5} - 2 q^{7} + 3 q^{9} + 4 q^{11} - 6 q^{13} - 2 q^{15} + 8 q^{19} + 2 q^{23} + 3 q^{25} + 8 q^{27} + 3 q^{29} + 4 q^{31} - 8 q^{33} + 2 q^{35} - 4 q^{37} + 8 q^{39} + 14 q^{41} + 18 q^{43} - 3 q^{45} - 2 q^{47} - q^{49} + 20 q^{51} - 6 q^{53} - 4 q^{55} + 4 q^{57} + 8 q^{59} - 10 q^{61} + 18 q^{63} + 6 q^{65} + 26 q^{67} + 12 q^{69} + 4 q^{71} - 20 q^{73} + 2 q^{75} - 4 q^{77} + 4 q^{79} - q^{81} + 14 q^{83} + 2 q^{87} + 22 q^{89} + 24 q^{91} - 20 q^{93} - 8 q^{95} + 4 q^{97} - 8 q^{99}+O(q^{100})$$ 3 * q + 2 * q^3 - 3 * q^5 - 2 * q^7 + 3 * q^9 + 4 * q^11 - 6 * q^13 - 2 * q^15 + 8 * q^19 + 2 * q^23 + 3 * q^25 + 8 * q^27 + 3 * q^29 + 4 * q^31 - 8 * q^33 + 2 * q^35 - 4 * q^37 + 8 * q^39 + 14 * q^41 + 18 * q^43 - 3 * q^45 - 2 * q^47 - q^49 + 20 * q^51 - 6 * q^53 - 4 * q^55 + 4 * q^57 + 8 * q^59 - 10 * q^61 + 18 * q^63 + 6 * q^65 + 26 * q^67 + 12 * q^69 + 4 * q^71 - 20 * q^73 + 2 * q^75 - 4 * q^77 + 4 * q^79 - q^81 + 14 * q^83 + 2 * q^87 + 22 * q^89 + 24 * q^91 - 20 * q^93 - 8 * q^95 + 4 * q^97 - 8 * q^99

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

 $$\beta_{1}$$ $$=$$ $$\nu^{2} - 2$$ v^2 - 2 $$\beta_{2}$$ $$=$$ $$-\nu^{2} + 2\nu + 2$$ -v^2 + 2*v + 2
 $$\nu$$ $$=$$ $$( \beta_{2} + \beta_1 ) / 2$$ (b2 + b1) / 2 $$\nu^{2}$$ $$=$$ $$\beta _1 + 2$$ b1 + 2

## 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.

comment: embeddings in the coefficient field

gp: mfembed(f)

Label   $$\iota_m(\nu)$$ $$a_{2}$$ $$a_{3}$$ $$a_{4}$$ $$a_{5}$$ $$a_{6}$$ $$a_{7}$$ $$a_{8}$$ $$a_{9}$$ $$a_{10}$$
1.1
 2.17009 −1.48119 0.311108
0 −1.70928 0 −1.00000 0 0.630898 0 −0.0783777 0
1.2 0 0.806063 0 −1.00000 0 −4.15633 0 −2.35026 0
1.3 0 2.90321 0 −1.00000 0 1.52543 0 5.42864 0
 $$n$$: e.g. 2-40 or 990-1000 Significant digits: Format: Complex embeddings Normalized embeddings Satake parameters Satake angles

## Atkin-Lehner signs

$$p$$ Sign
$$2$$ $$1$$
$$5$$ $$1$$
$$29$$ $$-1$$

## 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 2320.2.a.r 3
4.b odd 2 1 1160.2.a.e 3
8.b even 2 1 9280.2.a.bl 3
8.d odd 2 1 9280.2.a.bv 3
20.d odd 2 1 5800.2.a.r 3

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1160.2.a.e 3 4.b odd 2 1
2320.2.a.r 3 1.a even 1 1 trivial
5800.2.a.r 3 20.d odd 2 1
9280.2.a.bl 3 8.b even 2 1
9280.2.a.bv 3 8.d odd 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(2320))$$:

 $$T_{3}^{3} - 2T_{3}^{2} - 4T_{3} + 4$$ T3^3 - 2*T3^2 - 4*T3 + 4 $$T_{7}^{3} + 2T_{7}^{2} - 8T_{7} + 4$$ T7^3 + 2*T7^2 - 8*T7 + 4 $$T_{11}^{3} - 4T_{11}^{2} + 4$$ T11^3 - 4*T11^2 + 4

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{3}$$
$3$ $$T^{3} - 2 T^{2} + \cdots + 4$$
$5$ $$(T + 1)^{3}$$
$7$ $$T^{3} + 2 T^{2} + \cdots + 4$$
$11$ $$T^{3} - 4T^{2} + 4$$
$13$ $$T^{3} + 6 T^{2} + \cdots - 40$$
$17$ $$T^{3} - 28T + 52$$
$19$ $$T^{3} - 8 T^{2} + \cdots - 4$$
$23$ $$T^{3} - 2 T^{2} + \cdots + 4$$
$29$ $$(T - 1)^{3}$$
$31$ $$T^{3} - 4 T^{2} + \cdots + 116$$
$37$ $$T^{3} + 4 T^{2} + \cdots - 20$$
$41$ $$T^{3} - 14 T^{2} + \cdots - 40$$
$43$ $$T^{3} - 18 T^{2} + \cdots + 92$$
$47$ $$T^{3} + 2 T^{2} + \cdots + 116$$
$53$ $$T^{3} + 6 T^{2} + \cdots - 248$$
$59$ $$T^{3} - 8 T^{2} + \cdots + 272$$
$61$ $$T^{3} + 10 T^{2} + \cdots - 536$$
$67$ $$T^{3} - 26 T^{2} + \cdots - 268$$
$71$ $$T^{3} - 4 T^{2} + \cdots - 80$$
$73$ $$T^{3} + 20 T^{2} + \cdots + 260$$
$79$ $$T^{3} - 4 T^{2} + \cdots - 500$$
$83$ $$T^{3} - 14 T^{2} + \cdots + 2228$$
$89$ $$T^{3} - 22 T^{2} + \cdots - 232$$
$97$ $$T^{3} - 4 T^{2} + \cdots + 604$$