# Properties

 Label 900.4.a.b Level $900$ Weight $4$ Character orbit 900.a Self dual yes Analytic conductor $53.102$ Analytic rank $0$ Dimension $1$ CM no Inner twists $1$

# Related objects

Show commands: Magma / PariGP / SageMath

## Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [900,4,Mod(1,900)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(900, base_ring=CyclotomicField(2))

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

N = Newforms(chi, 4, names="a")

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

chi := DirichletCharacter("900.1");

S:= CuspForms(chi, 4);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$900 = 2^{2} \cdot 3^{2} \cdot 5^{2}$$ Weight: $$k$$ $$=$$ $$4$$ Character orbit: $$[\chi]$$ $$=$$ 900.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: $$53.1017190052$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 60) 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)

 $$f(q)$$ $$=$$ $$q - 32 q^{7}+O(q^{10})$$ q - 32 * q^7 $$q - 32 q^{7} - 36 q^{11} + 10 q^{13} - 78 q^{17} + 140 q^{19} - 192 q^{23} - 6 q^{29} - 16 q^{31} + 34 q^{37} + 390 q^{41} + 52 q^{43} + 408 q^{47} + 681 q^{49} - 114 q^{53} - 516 q^{59} - 58 q^{61} + 892 q^{67} + 120 q^{71} + 646 q^{73} + 1152 q^{77} - 1168 q^{79} - 732 q^{83} + 1590 q^{89} - 320 q^{91} - 194 q^{97}+O(q^{100})$$ q - 32 * q^7 - 36 * q^11 + 10 * q^13 - 78 * q^17 + 140 * q^19 - 192 * q^23 - 6 * q^29 - 16 * q^31 + 34 * q^37 + 390 * q^41 + 52 * q^43 + 408 * q^47 + 681 * q^49 - 114 * q^53 - 516 * q^59 - 58 * q^61 + 892 * q^67 + 120 * q^71 + 646 * q^73 + 1152 * q^77 - 1168 * q^79 - 732 * q^83 + 1590 * q^89 - 320 * q^91 - 194 * q^97

## 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
 0
0 0 0 0 0 −32.0000 0 0 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
$$2$$ $$-1$$
$$3$$ $$-1$$
$$5$$ $$1$$

## 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 900.4.a.b 1
3.b odd 2 1 300.4.a.e 1
5.b even 2 1 180.4.a.c 1
5.c odd 4 2 900.4.d.b 2
12.b even 2 1 1200.4.a.s 1
15.d odd 2 1 60.4.a.b 1
15.e even 4 2 300.4.d.d 2
20.d odd 2 1 720.4.a.c 1
45.h odd 6 2 1620.4.i.a 2
45.j even 6 2 1620.4.i.g 2
60.h even 2 1 240.4.a.j 1
60.l odd 4 2 1200.4.f.e 2
120.i odd 2 1 960.4.a.bb 1
120.m even 2 1 960.4.a.a 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
60.4.a.b 1 15.d odd 2 1
180.4.a.c 1 5.b even 2 1
240.4.a.j 1 60.h even 2 1
300.4.a.e 1 3.b odd 2 1
300.4.d.d 2 15.e even 4 2
720.4.a.c 1 20.d odd 2 1
900.4.a.b 1 1.a even 1 1 trivial
900.4.d.b 2 5.c odd 4 2
960.4.a.a 1 120.m even 2 1
960.4.a.bb 1 120.i odd 2 1
1200.4.a.s 1 12.b even 2 1
1200.4.f.e 2 60.l odd 4 2
1620.4.i.a 2 45.h odd 6 2
1620.4.i.g 2 45.j even 6 2

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{4}^{\mathrm{new}}(\Gamma_0(900))$$:

 $$T_{7} + 32$$ T7 + 32 $$T_{11} + 36$$ T11 + 36

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T$$
$3$ $$T$$
$5$ $$T$$
$7$ $$T + 32$$
$11$ $$T + 36$$
$13$ $$T - 10$$
$17$ $$T + 78$$
$19$ $$T - 140$$
$23$ $$T + 192$$
$29$ $$T + 6$$
$31$ $$T + 16$$
$37$ $$T - 34$$
$41$ $$T - 390$$
$43$ $$T - 52$$
$47$ $$T - 408$$
$53$ $$T + 114$$
$59$ $$T + 516$$
$61$ $$T + 58$$
$67$ $$T - 892$$
$71$ $$T - 120$$
$73$ $$T - 646$$
$79$ $$T + 1168$$
$83$ $$T + 732$$
$89$ $$T - 1590$$
$97$ $$T + 194$$