# Properties

 Label 4650.2.a.bz Level $4650$ Weight $2$ Character orbit 4650.a Self dual yes Analytic conductor $37.130$ Analytic rank $0$ 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] = [4650,2,Mod(1,4650)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(4650, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([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("4650.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$4650 = 2 \cdot 3 \cdot 5^{2} \cdot 31$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 4650.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: $$37.1304369399$$ Analytic rank: $$0$$ Dimension: $$2$$ Coefficient field: $$\Q(\sqrt{65})$$ comment: defining polynomial  gp: f.mod \\ as an extension of the character field Defining polynomial: $$x^{2} - x - 16$$ x^2 - x - 16 Coefficient ring: $$\Z[a_1, \ldots, a_{7}]$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 930) 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 $$\beta = \frac{1}{2}(1 + \sqrt{65})$$. We also show the integral $$q$$-expansion of the trace form.

 $$f(q)$$ $$=$$ $$q - q^{2} - q^{3} + q^{4} + q^{6} + \beta q^{7} - q^{8} + q^{9}+O(q^{10})$$ q - q^2 - q^3 + q^4 + q^6 + b * q^7 - q^8 + q^9 $$q - q^{2} - q^{3} + q^{4} + q^{6} + \beta q^{7} - q^{8} + q^{9} + (\beta + 2) q^{11} - q^{12} - 6 q^{13} - \beta q^{14} + q^{16} + 4 q^{17} - q^{18} + \beta q^{19} - \beta q^{21} + ( - \beta - 2) q^{22} + ( - \beta - 2) q^{23} + q^{24} + 6 q^{26} - q^{27} + \beta q^{28} + q^{31} - q^{32} + ( - \beta - 2) q^{33} - 4 q^{34} + q^{36} + (2 \beta - 2) q^{37} - \beta q^{38} + 6 q^{39} + (2 \beta - 2) q^{41} + \beta q^{42} + (\beta + 4) q^{43} + (\beta + 2) q^{44} + (\beta + 2) q^{46} + (2 \beta - 4) q^{47} - q^{48} + (\beta + 9) q^{49} - 4 q^{51} - 6 q^{52} + (\beta - 2) q^{53} + q^{54} - \beta q^{56} - \beta q^{57} - 2 \beta q^{59} + (2 \beta - 4) q^{61} - q^{62} + \beta q^{63} + q^{64} + (\beta + 2) q^{66} + ( - 2 \beta + 4) q^{67} + 4 q^{68} + (\beta + 2) q^{69} + ( - \beta - 8) q^{71} - q^{72} + (\beta + 4) q^{73} + ( - 2 \beta + 2) q^{74} + \beta q^{76} + (3 \beta + 16) q^{77} - 6 q^{78} + ( - \beta - 4) q^{79} + q^{81} + ( - 2 \beta + 2) q^{82} + 8 q^{83} - \beta q^{84} + ( - \beta - 4) q^{86} + ( - \beta - 2) q^{88} + ( - \beta - 2) q^{89} - 6 \beta q^{91} + ( - \beta - 2) q^{92} - q^{93} + ( - 2 \beta + 4) q^{94} + q^{96} + ( - 4 \beta + 2) q^{97} + ( - \beta - 9) q^{98} + (\beta + 2) q^{99} +O(q^{100})$$ q - q^2 - q^3 + q^4 + q^6 + b * q^7 - q^8 + q^9 + (b + 2) * q^11 - q^12 - 6 * q^13 - b * q^14 + q^16 + 4 * q^17 - q^18 + b * q^19 - b * q^21 + (-b - 2) * q^22 + (-b - 2) * q^23 + q^24 + 6 * q^26 - q^27 + b * q^28 + q^31 - q^32 + (-b - 2) * q^33 - 4 * q^34 + q^36 + (2*b - 2) * q^37 - b * q^38 + 6 * q^39 + (2*b - 2) * q^41 + b * q^42 + (b + 4) * q^43 + (b + 2) * q^44 + (b + 2) * q^46 + (2*b - 4) * q^47 - q^48 + (b + 9) * q^49 - 4 * q^51 - 6 * q^52 + (b - 2) * q^53 + q^54 - b * q^56 - b * q^57 - 2*b * q^59 + (2*b - 4) * q^61 - q^62 + b * q^63 + q^64 + (b + 2) * q^66 + (-2*b + 4) * q^67 + 4 * q^68 + (b + 2) * q^69 + (-b - 8) * q^71 - q^72 + (b + 4) * q^73 + (-2*b + 2) * q^74 + b * q^76 + (3*b + 16) * q^77 - 6 * q^78 + (-b - 4) * q^79 + q^81 + (-2*b + 2) * q^82 + 8 * q^83 - b * q^84 + (-b - 4) * q^86 + (-b - 2) * q^88 + (-b - 2) * q^89 - 6*b * q^91 + (-b - 2) * q^92 - q^93 + (-2*b + 4) * q^94 + q^96 + (-4*b + 2) * q^97 + (-b - 9) * q^98 + (b + 2) * q^99 $$\operatorname{Tr}(f)(q)$$ $$=$$ $$2 q - 2 q^{2} - 2 q^{3} + 2 q^{4} + 2 q^{6} + q^{7} - 2 q^{8} + 2 q^{9}+O(q^{10})$$ 2 * q - 2 * q^2 - 2 * q^3 + 2 * q^4 + 2 * q^6 + q^7 - 2 * q^8 + 2 * q^9 $$2 q - 2 q^{2} - 2 q^{3} + 2 q^{4} + 2 q^{6} + q^{7} - 2 q^{8} + 2 q^{9} + 5 q^{11} - 2 q^{12} - 12 q^{13} - q^{14} + 2 q^{16} + 8 q^{17} - 2 q^{18} + q^{19} - q^{21} - 5 q^{22} - 5 q^{23} + 2 q^{24} + 12 q^{26} - 2 q^{27} + q^{28} + 2 q^{31} - 2 q^{32} - 5 q^{33} - 8 q^{34} + 2 q^{36} - 2 q^{37} - q^{38} + 12 q^{39} - 2 q^{41} + q^{42} + 9 q^{43} + 5 q^{44} + 5 q^{46} - 6 q^{47} - 2 q^{48} + 19 q^{49} - 8 q^{51} - 12 q^{52} - 3 q^{53} + 2 q^{54} - q^{56} - q^{57} - 2 q^{59} - 6 q^{61} - 2 q^{62} + q^{63} + 2 q^{64} + 5 q^{66} + 6 q^{67} + 8 q^{68} + 5 q^{69} - 17 q^{71} - 2 q^{72} + 9 q^{73} + 2 q^{74} + q^{76} + 35 q^{77} - 12 q^{78} - 9 q^{79} + 2 q^{81} + 2 q^{82} + 16 q^{83} - q^{84} - 9 q^{86} - 5 q^{88} - 5 q^{89} - 6 q^{91} - 5 q^{92} - 2 q^{93} + 6 q^{94} + 2 q^{96} - 19 q^{98} + 5 q^{99}+O(q^{100})$$ 2 * q - 2 * q^2 - 2 * q^3 + 2 * q^4 + 2 * q^6 + q^7 - 2 * q^8 + 2 * q^9 + 5 * q^11 - 2 * q^12 - 12 * q^13 - q^14 + 2 * q^16 + 8 * q^17 - 2 * q^18 + q^19 - q^21 - 5 * q^22 - 5 * q^23 + 2 * q^24 + 12 * q^26 - 2 * q^27 + q^28 + 2 * q^31 - 2 * q^32 - 5 * q^33 - 8 * q^34 + 2 * q^36 - 2 * q^37 - q^38 + 12 * q^39 - 2 * q^41 + q^42 + 9 * q^43 + 5 * q^44 + 5 * q^46 - 6 * q^47 - 2 * q^48 + 19 * q^49 - 8 * q^51 - 12 * q^52 - 3 * q^53 + 2 * q^54 - q^56 - q^57 - 2 * q^59 - 6 * q^61 - 2 * q^62 + q^63 + 2 * q^64 + 5 * q^66 + 6 * q^67 + 8 * q^68 + 5 * q^69 - 17 * q^71 - 2 * q^72 + 9 * q^73 + 2 * q^74 + q^76 + 35 * q^77 - 12 * q^78 - 9 * q^79 + 2 * q^81 + 2 * q^82 + 16 * q^83 - q^84 - 9 * q^86 - 5 * q^88 - 5 * q^89 - 6 * q^91 - 5 * q^92 - 2 * q^93 + 6 * q^94 + 2 * q^96 - 19 * q^98 + 5 * 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
 −3.53113 4.53113
−1.00000 −1.00000 1.00000 0 1.00000 −3.53113 −1.00000 1.00000 0
1.2 −1.00000 −1.00000 1.00000 0 1.00000 4.53113 −1.00000 1.00000 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
$$2$$ $$1$$
$$3$$ $$1$$
$$5$$ $$1$$
$$31$$ $$-1$$

## 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 4650.2.a.bz 2
5.b even 2 1 930.2.a.q 2
5.c odd 4 2 4650.2.d.bg 4
15.d odd 2 1 2790.2.a.bf 2
20.d odd 2 1 7440.2.a.bd 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
930.2.a.q 2 5.b even 2 1
2790.2.a.bf 2 15.d odd 2 1
4650.2.a.bz 2 1.a even 1 1 trivial
4650.2.d.bg 4 5.c odd 4 2
7440.2.a.bd 2 20.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 $$S_{2}^{\mathrm{new}}(\Gamma_0(4650))$$:

 $$T_{7}^{2} - T_{7} - 16$$ T7^2 - T7 - 16 $$T_{11}^{2} - 5T_{11} - 10$$ T11^2 - 5*T11 - 10 $$T_{13} + 6$$ T13 + 6 $$T_{19}^{2} - T_{19} - 16$$ T19^2 - T19 - 16

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$(T + 1)^{2}$$
$3$ $$(T + 1)^{2}$$
$5$ $$T^{2}$$
$7$ $$T^{2} - T - 16$$
$11$ $$T^{2} - 5T - 10$$
$13$ $$(T + 6)^{2}$$
$17$ $$(T - 4)^{2}$$
$19$ $$T^{2} - T - 16$$
$23$ $$T^{2} + 5T - 10$$
$29$ $$T^{2}$$
$31$ $$(T - 1)^{2}$$
$37$ $$T^{2} + 2T - 64$$
$41$ $$T^{2} + 2T - 64$$
$43$ $$T^{2} - 9T + 4$$
$47$ $$T^{2} + 6T - 56$$
$53$ $$T^{2} + 3T - 14$$
$59$ $$T^{2} + 2T - 64$$
$61$ $$T^{2} + 6T - 56$$
$67$ $$T^{2} - 6T - 56$$
$71$ $$T^{2} + 17T + 56$$
$73$ $$T^{2} - 9T + 4$$
$79$ $$T^{2} + 9T + 4$$
$83$ $$(T - 8)^{2}$$
$89$ $$T^{2} + 5T - 10$$
$97$ $$T^{2} - 260$$