# Properties

 Label 2240.2.a.bh Level $2240$ Weight $2$ Character orbit 2240.a Self dual yes Analytic conductor $17.886$ Analytic rank $1$ Dimension $2$ CM no Inner twists $1$

# Related objects

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [2240,2,Mod(1,2240)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(2240, 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("2240.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$2240 = 2^{6} \cdot 5 \cdot 7$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 2240.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: $$17.8864900528$$ Analytic rank: $$1$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{17})$$ comment: defining polynomial  gp: f.mod \\ as an extension of the character field Defining polynomial: $$x^{2} - x - 4$$ x^2 - x - 4 Coefficient ring: $$\Z[a_1, a_2, a_3]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 35) 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 $$\beta = \frac{1}{2}(1 + \sqrt{17})$$. We also show the integral $$q$$-expansion of the trace form.

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

## 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
 −1.56155 2.56155
0 −1.56155 0 −1.00000 0 −1.00000 0 −0.561553 0
1.2 0 2.56155 0 −1.00000 0 −1.00000 0 3.56155 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
$$2$$ $$1$$
$$5$$ $$1$$
$$7$$ $$1$$

## 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 2240.2.a.bh 2
4.b odd 2 1 2240.2.a.bd 2
8.b even 2 1 35.2.a.b 2
8.d odd 2 1 560.2.a.i 2
24.f even 2 1 5040.2.a.bt 2
24.h odd 2 1 315.2.a.e 2
40.e odd 2 1 2800.2.a.bi 2
40.f even 2 1 175.2.a.f 2
40.i odd 4 2 175.2.b.b 4
40.k even 4 2 2800.2.g.t 4
56.e even 2 1 3920.2.a.bs 2
56.h odd 2 1 245.2.a.d 2
56.j odd 6 2 245.2.e.h 4
56.p even 6 2 245.2.e.i 4
88.b odd 2 1 4235.2.a.m 2
104.e even 2 1 5915.2.a.l 2
120.i odd 2 1 1575.2.a.p 2
120.w even 4 2 1575.2.d.e 4
168.i even 2 1 2205.2.a.x 2
280.c odd 2 1 1225.2.a.s 2
280.s even 4 2 1225.2.b.f 4

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
35.2.a.b 2 8.b even 2 1
175.2.a.f 2 40.f even 2 1
175.2.b.b 4 40.i odd 4 2
245.2.a.d 2 56.h odd 2 1
245.2.e.h 4 56.j odd 6 2
245.2.e.i 4 56.p even 6 2
315.2.a.e 2 24.h odd 2 1
560.2.a.i 2 8.d odd 2 1
1225.2.a.s 2 280.c odd 2 1
1225.2.b.f 4 280.s even 4 2
1575.2.a.p 2 120.i odd 2 1
1575.2.d.e 4 120.w even 4 2
2205.2.a.x 2 168.i even 2 1
2240.2.a.bd 2 4.b odd 2 1
2240.2.a.bh 2 1.a even 1 1 trivial
2800.2.a.bi 2 40.e odd 2 1
2800.2.g.t 4 40.k even 4 2
3920.2.a.bs 2 56.e even 2 1
4235.2.a.m 2 88.b odd 2 1
5040.2.a.bt 2 24.f even 2 1
5915.2.a.l 2 104.e even 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(2240))$$:

 $$T_{3}^{2} - T_{3} - 4$$ T3^2 - T3 - 4 $$T_{11}^{2} + T_{11} - 4$$ T11^2 + T11 - 4 $$T_{13}^{2} + 5T_{13} + 2$$ T13^2 + 5*T13 + 2 $$T_{19}^{2} - 6T_{19} - 8$$ T19^2 - 6*T19 - 8

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T^{2}$$
$3$ $$T^{2} - T - 4$$
$5$ $$(T + 1)^{2}$$
$7$ $$(T + 1)^{2}$$
$11$ $$T^{2} + T - 4$$
$13$ $$T^{2} + 5T + 2$$
$17$ $$T^{2} + 5T + 2$$
$19$ $$T^{2} - 6T - 8$$
$23$ $$T^{2} + 2T - 16$$
$29$ $$T^{2} + T - 38$$
$31$ $$T^{2}$$
$37$ $$(T + 6)^{2}$$
$41$ $$T^{2} - 2T - 16$$
$43$ $$T^{2} + 10T + 8$$
$47$ $$T^{2} + 5T - 32$$
$53$ $$T^{2} - 2T - 16$$
$59$ $$(T - 4)^{2}$$
$61$ $$T^{2} + 6T - 144$$
$67$ $$T^{2} + 4T - 64$$
$71$ $$(T - 8)^{2}$$
$73$ $$T^{2} + 8T - 52$$
$79$ $$T^{2} + 9T + 16$$
$83$ $$(T + 4)^{2}$$
$89$ $$T^{2} - 6T - 8$$
$97$ $$T^{2} + 9T - 86$$