# Properties

 Label 1575.4.a.i Level $1575$ Weight $4$ Character orbit 1575.a Self dual yes Analytic conductor $92.928$ 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] = [1575,4,Mod(1,1575)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(1575, 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("1575.1");

S:= CuspForms(chi, 4);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$1575 = 3^{2} \cdot 5^{2} \cdot 7$$ Weight: $$k$$ $$=$$ $$4$$ Character orbit: $$[\chi]$$ $$=$$ 1575.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: $$92.9280082590$$ Analytic rank: $$0$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 315) 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)

 $$f(q)$$ $$=$$ $$q + 3 q^{2} + q^{4} - 7 q^{7} - 21 q^{8}+O(q^{10})$$ q + 3 * q^2 + q^4 - 7 * q^7 - 21 * q^8 $$q + 3 q^{2} + q^{4} - 7 q^{7} - 21 q^{8} - 60 q^{11} - 38 q^{13} - 21 q^{14} - 71 q^{16} - 84 q^{17} + 110 q^{19} - 180 q^{22} + 120 q^{23} - 114 q^{26} - 7 q^{28} - 162 q^{29} + 236 q^{31} - 45 q^{32} - 252 q^{34} + 376 q^{37} + 330 q^{38} + 126 q^{41} + 34 q^{43} - 60 q^{44} + 360 q^{46} - 6 q^{47} + 49 q^{49} - 38 q^{52} + 582 q^{53} + 147 q^{56} - 486 q^{58} - 492 q^{59} - 880 q^{61} + 708 q^{62} + 433 q^{64} + 826 q^{67} - 84 q^{68} + 666 q^{71} + 826 q^{73} + 1128 q^{74} + 110 q^{76} + 420 q^{77} - 592 q^{79} + 378 q^{82} + 792 q^{83} + 102 q^{86} + 1260 q^{88} - 1002 q^{89} + 266 q^{91} + 120 q^{92} - 18 q^{94} - 1442 q^{97} + 147 q^{98}+O(q^{100})$$ q + 3 * q^2 + q^4 - 7 * q^7 - 21 * q^8 - 60 * q^11 - 38 * q^13 - 21 * q^14 - 71 * q^16 - 84 * q^17 + 110 * q^19 - 180 * q^22 + 120 * q^23 - 114 * q^26 - 7 * q^28 - 162 * q^29 + 236 * q^31 - 45 * q^32 - 252 * q^34 + 376 * q^37 + 330 * q^38 + 126 * q^41 + 34 * q^43 - 60 * q^44 + 360 * q^46 - 6 * q^47 + 49 * q^49 - 38 * q^52 + 582 * q^53 + 147 * q^56 - 486 * q^58 - 492 * q^59 - 880 * q^61 + 708 * q^62 + 433 * q^64 + 826 * q^67 - 84 * q^68 + 666 * q^71 + 826 * q^73 + 1128 * q^74 + 110 * q^76 + 420 * q^77 - 592 * q^79 + 378 * q^82 + 792 * q^83 + 102 * q^86 + 1260 * q^88 - 1002 * q^89 + 266 * q^91 + 120 * q^92 - 18 * q^94 - 1442 * q^97 + 147 * q^98

## 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
3.00000 0 1.00000 0 0 −7.00000 −21.0000 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
$$3$$ $$+1$$
$$5$$ $$+1$$
$$7$$ $$+1$$

## 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 1575.4.a.i 1
3.b odd 2 1 1575.4.a.c 1
5.b even 2 1 315.4.a.b 1
15.d odd 2 1 315.4.a.e yes 1
35.c odd 2 1 2205.4.a.f 1
105.g even 2 1 2205.4.a.p 1

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
315.4.a.b 1 5.b even 2 1
315.4.a.e yes 1 15.d odd 2 1
1575.4.a.c 1 3.b odd 2 1
1575.4.a.i 1 1.a even 1 1 trivial
2205.4.a.f 1 35.c odd 2 1
2205.4.a.p 1 105.g even 2 1

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{4}^{\mathrm{new}}(\Gamma_0(1575))$$:

 $$T_{2} - 3$$ T2 - 3 $$T_{11} + 60$$ T11 + 60 $$T_{13} + 38$$ T13 + 38

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T - 3$$
$3$ $$T$$
$5$ $$T$$
$7$ $$T + 7$$
$11$ $$T + 60$$
$13$ $$T + 38$$
$17$ $$T + 84$$
$19$ $$T - 110$$
$23$ $$T - 120$$
$29$ $$T + 162$$
$31$ $$T - 236$$
$37$ $$T - 376$$
$41$ $$T - 126$$
$43$ $$T - 34$$
$47$ $$T + 6$$
$53$ $$T - 582$$
$59$ $$T + 492$$
$61$ $$T + 880$$
$67$ $$T - 826$$
$71$ $$T - 666$$
$73$ $$T - 826$$
$79$ $$T + 592$$
$83$ $$T - 792$$
$89$ $$T + 1002$$
$97$ $$T + 1442$$