# Properties

 Label 7938.2.a.x Level $7938$ Weight $2$ Character orbit 7938.a Self dual yes Analytic conductor $63.385$ Analytic rank $1$ 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] = [7938,2,Mod(1,7938)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(7938, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([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("7938.1");

S:= CuspForms(chi, 2);

N := Newforms(S);

 Level: $$N$$ $$=$$ $$7938 = 2 \cdot 3^{4} \cdot 7^{2}$$ Weight: $$k$$ $$=$$ $$2$$ Character orbit: $$[\chi]$$ $$=$$ 7938.a (trivial)

## Newform invariants

comment: select newform

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

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

 Self dual: yes Analytic conductor: $$63.3852491245$$ Analytic rank: $$1$$ Dimension: $$1$$ Coefficient field: $$\mathbb{Q}$$ Coefficient ring: $$\mathbb{Z}$$ Coefficient ring index: $$1$$ Twist minimal: no (minimal twist has level 18) 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)

 $$f(q)$$ $$=$$ $$q + q^{2} + q^{4} + q^{8}+O(q^{10})$$ q + q^2 + q^4 + q^8 $$q + q^{2} + q^{4} + q^{8} - 3 q^{11} - 2 q^{13} + q^{16} + 3 q^{17} + q^{19} - 3 q^{22} - 6 q^{23} - 5 q^{25} - 2 q^{26} + 6 q^{29} + 4 q^{31} + q^{32} + 3 q^{34} - 4 q^{37} + q^{38} - 9 q^{41} - q^{43} - 3 q^{44} - 6 q^{46} + 6 q^{47} - 5 q^{50} - 2 q^{52} + 12 q^{53} + 6 q^{58} - 3 q^{59} - 8 q^{61} + 4 q^{62} + q^{64} + 5 q^{67} + 3 q^{68} - 12 q^{71} - 11 q^{73} - 4 q^{74} + q^{76} - 4 q^{79} - 9 q^{82} - 12 q^{83} - q^{86} - 3 q^{88} - 6 q^{89} - 6 q^{92} + 6 q^{94} - 5 q^{97}+O(q^{100})$$ q + q^2 + q^4 + q^8 - 3 * q^11 - 2 * q^13 + q^16 + 3 * q^17 + q^19 - 3 * q^22 - 6 * q^23 - 5 * q^25 - 2 * q^26 + 6 * q^29 + 4 * q^31 + q^32 + 3 * q^34 - 4 * q^37 + q^38 - 9 * q^41 - q^43 - 3 * q^44 - 6 * q^46 + 6 * q^47 - 5 * q^50 - 2 * q^52 + 12 * q^53 + 6 * q^58 - 3 * q^59 - 8 * q^61 + 4 * q^62 + q^64 + 5 * q^67 + 3 * q^68 - 12 * q^71 - 11 * q^73 - 4 * q^74 + q^76 - 4 * q^79 - 9 * q^82 - 12 * q^83 - q^86 - 3 * q^88 - 6 * q^89 - 6 * q^92 + 6 * q^94 - 5 * 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
1.00000 0 1.00000 0 0 0 1.00000 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
$$2$$ $$-1$$
$$3$$ $$1$$
$$7$$ $$-1$$

## 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 7938.2.a.x 1
3.b odd 2 1 7938.2.a.i 1
7.b odd 2 1 162.2.a.c 1
9.c even 3 2 882.2.f.d 2
9.d odd 6 2 2646.2.f.g 2
21.c even 2 1 162.2.a.b 1
28.d even 2 1 1296.2.a.g 1
35.c odd 2 1 4050.2.a.c 1
35.f even 4 2 4050.2.c.c 2
56.e even 2 1 5184.2.a.o 1
56.h odd 2 1 5184.2.a.r 1
63.g even 3 2 882.2.h.b 2
63.h even 3 2 882.2.e.g 2
63.i even 6 2 2646.2.e.b 2
63.j odd 6 2 2646.2.e.c 2
63.k odd 6 2 882.2.h.c 2
63.l odd 6 2 18.2.c.a 2
63.n odd 6 2 2646.2.h.i 2
63.o even 6 2 54.2.c.a 2
63.s even 6 2 2646.2.h.h 2
63.t odd 6 2 882.2.e.i 2
84.h odd 2 1 1296.2.a.f 1
105.g even 2 1 4050.2.a.v 1
105.k odd 4 2 4050.2.c.r 2
168.e odd 2 1 5184.2.a.p 1
168.i even 2 1 5184.2.a.q 1
252.s odd 6 2 432.2.i.b 2
252.bi even 6 2 144.2.i.c 2
315.z even 6 2 1350.2.e.c 2
315.bg odd 6 2 450.2.e.i 2
315.cb even 12 4 450.2.j.e 4
315.cf odd 12 4 1350.2.j.a 4
504.be even 6 2 576.2.i.a 2
504.bn odd 6 2 576.2.i.g 2
504.cc even 6 2 1728.2.i.e 2
504.co odd 6 2 1728.2.i.f 2

By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
18.2.c.a 2 63.l odd 6 2
54.2.c.a 2 63.o even 6 2
144.2.i.c 2 252.bi even 6 2
162.2.a.b 1 21.c even 2 1
162.2.a.c 1 7.b odd 2 1
432.2.i.b 2 252.s odd 6 2
450.2.e.i 2 315.bg odd 6 2
450.2.j.e 4 315.cb even 12 4
576.2.i.a 2 504.be even 6 2
576.2.i.g 2 504.bn odd 6 2
882.2.e.g 2 63.h even 3 2
882.2.e.i 2 63.t odd 6 2
882.2.f.d 2 9.c even 3 2
882.2.h.b 2 63.g even 3 2
882.2.h.c 2 63.k odd 6 2
1296.2.a.f 1 84.h odd 2 1
1296.2.a.g 1 28.d even 2 1
1350.2.e.c 2 315.z even 6 2
1350.2.j.a 4 315.cf odd 12 4
1728.2.i.e 2 504.cc even 6 2
1728.2.i.f 2 504.co odd 6 2
2646.2.e.b 2 63.i even 6 2
2646.2.e.c 2 63.j odd 6 2
2646.2.f.g 2 9.d odd 6 2
2646.2.h.h 2 63.s even 6 2
2646.2.h.i 2 63.n odd 6 2
4050.2.a.c 1 35.c odd 2 1
4050.2.a.v 1 105.g even 2 1
4050.2.c.c 2 35.f even 4 2
4050.2.c.r 2 105.k odd 4 2
5184.2.a.o 1 56.e even 2 1
5184.2.a.p 1 168.e odd 2 1
5184.2.a.q 1 168.i even 2 1
5184.2.a.r 1 56.h odd 2 1
7938.2.a.i 1 3.b odd 2 1
7938.2.a.x 1 1.a even 1 1 trivial

## Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on $$S_{2}^{\mathrm{new}}(\Gamma_0(7938))$$:

 $$T_{5}$$ T5 $$T_{11} + 3$$ T11 + 3 $$T_{13} + 2$$ T13 + 2 $$T_{17} - 3$$ T17 - 3 $$T_{23} + 6$$ T23 + 6

## Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ $$T - 1$$
$3$ $$T$$
$5$ $$T$$
$7$ $$T$$
$11$ $$T + 3$$
$13$ $$T + 2$$
$17$ $$T - 3$$
$19$ $$T - 1$$
$23$ $$T + 6$$
$29$ $$T - 6$$
$31$ $$T - 4$$
$37$ $$T + 4$$
$41$ $$T + 9$$
$43$ $$T + 1$$
$47$ $$T - 6$$
$53$ $$T - 12$$
$59$ $$T + 3$$
$61$ $$T + 8$$
$67$ $$T - 5$$
$71$ $$T + 12$$
$73$ $$T + 11$$
$79$ $$T + 4$$
$83$ $$T + 12$$
$89$ $$T + 6$$
$97$ $$T + 5$$