LMFDB - Newform orbit 19.4.c.b

Show commands: Magma / Pari/GP / SageMath

Newspace parameters

comment:Compute space of new eigenforms

gp:[N,k,chi] = [19,4,Mod(7,19)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)

sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(19, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([2])) N = Newforms(chi, 4, names="a")

magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("19.7"); S:= CuspForms(chi, 4); N := Newforms(S);

Level:	$N$	$=$	$19$
Weight:	$k$	$=$	$4$
Character orbit:	$[\chi]$	$=$	19.c (of order $3$ , degree $2$ , minimal)

Newform invariants

comment:select newform

sage:traces = [4,-1] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)

gp:f = lf[1] \\ Warning: the index may be different

Self dual:	no
Analytic conductor:	$1.12103629011$
Analytic rank:	$0$
Dimension:	$4$
Relative dimension:	$2$ over $\Q(\zeta_{3})$
Coefficient field:	$\Q(\sqrt{-3}, \sqrt{73})$
comment:defining polynomial gp:f.mod \\ as an extension of the character field
Defining polynomial:	$x^{4} - x^{3} + 19x^{2} + 18x + 324$ x^4 - x^3 + 19x^2 + 18x + 324
Coefficient ring:	$\Z[a_1, a_2, a_3]$
Coefficient ring index:	$1$
Twist minimal:	yes
Sato-Tate group:	$\mathrm{SU}(2)[C_{3}]$

Character values

We give the values of $\chi$ on generators for $\left(\mathbb{Z}/19\mathbb{Z}\right)^\times$ .

$n$	$2$
$\chi(n)$	$-1 + \beta_{2}$

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}

7.1

2.38600	+	4.13267i
−1.88600	−	3.26665i
2.38600	−	4.13267i
−1.88600	+	3.26665i

−2.38600

−

4.13267i

−0.500000

−

0.866025i

−7.38600

12.7929i

−6.88600

−

11.9269i

−2.38600

4.13267i

27.0880

32.3160

13.0000

−

22.5167i

−32.8600

56.9152i

7.2

1.88600

3.26665i

−0.500000

−

0.866025i

−3.11400

5.39360i

−2.61400

−

4.52758i

1.88600

−

3.26665i

−7.08801

6.68399

13.0000

−

22.5167i

9.86001

−

17.0780i

11.1

−2.38600

4.13267i

−0.500000

0.866025i

−7.38600

−

12.7929i

−6.88600

11.9269i

−2.38600

−

4.13267i

27.0880

32.3160

13.0000

22.5167i

−32.8600

−

56.9152i

11.2

1.88600

−

3.26665i

−0.500000

0.866025i

−3.11400

−

5.39360i

−2.61400

4.52758i

1.88600

3.26665i

−7.08801

6.68399

13.0000

22.5167i

9.86001

17.0780i

Inner twists

Char	Parity	Ord	Mult	Type
1.a	even	1	1	trivial
19.c	even	3	1	inner

Twists

By twisting character orbit
Char	Parity	Ord	Mult	Type	Twist	Min	Dim
1.a	even	1	1	trivial	19.4.c.b	✓	4
3.b	odd	2	1		171.4.f.d		4
4.b	odd	2	1		304.4.i.d		4
19.c	even	3	1	inner	19.4.c.b	✓	4
19.c	even	3	1		361.4.a.f		2
19.d	odd	6	1		361.4.a.e		2
57.h	odd	6	1		171.4.f.d		4
76.g	odd	6	1		304.4.i.d		4

By twisted newform orbit
Twist	Min	Dim	Char	Parity	Ord	Mult	Type
19.4.c.b	✓	4	1.a	even	1	1	trivial
19.4.c.b	✓	4	19.c	even	3	1	inner
171.4.f.d		4	3.b	odd	2	1
171.4.f.d		4	57.h	odd	6	1
304.4.i.d		4	4.b	odd	2	1
304.4.i.d		4	76.g	odd	6	1
361.4.a.e		2	19.d	odd	6	1
361.4.a.f		2	19.c	even	3	1

This newform subspace can be constructed as the kernel of the linear operator $T_{2}^{4} + T_{2}^{3} + 19T_{2}^{2} - 18T_{2} + 324$ T2^4 + T2^3 + 19*T2^2 - 18*T2 + 324 acting on $S_{4}^{\mathrm{new}}(19, [\chi])$ .

Hecke characteristic polynomials

$p$	$F_p(T)$
$2$	$T^{4} + T^{3} + \cdots + 324$ T^4 + T^3 + 19T^2 - 18T + 324
$3$	$(T^{2} + T + 1)^{2}$ (T^2 + T + 1)^2
$5$	$T^{4} + 19 T^{3} + \cdots + 5184$ T^4 + 19T^3 + 289T^2 + 1368*T + 5184
$7$	$(T^{2} - 20 T - 192)^{2}$ (T^2 - 20*T - 192)^2
$11$	$(T^{2} + 33 T + 108)^{2}$ (T^2 + 33*T + 108)^2
$13$	$T^{4} + 101 T^{3} + \cdots + 4384836$ T^4 + 101T^3 + 8107T^2 + 211494*T + 4384836
$17$	$T^{4} - 75 T^{3} + \cdots + 44116164$ T^4 - 75T^3 + 12267T^2 + 498150*T + 44116164
$19$	$T^{4} - 57 T^{3} + \cdots + 47045881$ T^4 - 57T^3 + 7942T^2 - 390963*T + 47045881
$23$	$T^{4} + T^{3} + \cdots + 27815076$ T^4 + T^3 + 5275T^2 - 5274T + 27815076
$29$	$T^{4} - 85 T^{3} + \cdots + 833592384$ T^4 - 85T^3 + 36097T^2 + 2454120*T + 833592384
$31$	$(T^{2} - 22 T - 536)^{2}$ (T^2 - 22*T - 536)^2
$37$	$(T^{2} - 448 T + 26524)^{2}$ (T^2 - 448*T + 26524)^2
$41$	$T^{4} + 124 T^{3} + \cdots + 14220441$ T^4 + 124T^3 + 11605T^2 + 467604*T + 14220441
$43$	$T^{4} - 311 T^{3} + \cdots + 260241424$ T^4 - 311T^3 + 80589T^2 - 5017052*T + 260241424
$47$	$T^{4} + 411 T^{3} + \cdots + 209438784$ T^4 + 411T^3 + 154449T^2 + 5947992*T + 209438784
$53$	$T^{4} + \cdots + 26191538244$ T^4 + 261T^3 + 229959T^2 - 42239718*T + 26191538244
$59$	$T^{4} + \cdots + 32209121961$ T^4 + 204T^3 + 221085T^2 - 36611676*T + 32209121961
$61$	$T^{4} + \cdots + 4843603216$ T^4 + 531T^3 + 212365T^2 + 36955476*T + 4843603216
$67$	$T^{4} + \cdots + 161337985561$ T^4 + 556T^3 + 710805T^2 - 223327964*T + 161337985561
$71$	$T^{4} + \cdots + 372805494084$ T^4 + 1563T^3 + 1832391T^2 + 954333414*T + 372805494084
$73$	$T^{4} + \cdots + 16291714321$ T^4 - 234T^3 + 182395T^2 + 29867526*T + 16291714321
$79$	$T^{4} - 331 T^{3} + \cdots + 97061904$ T^4 - 331T^3 + 99709T^2 - 3261012*T + 97061904
$83$	$(T^{2} - 1459 T + 59112)^{2}$ (T^2 - 1459*T + 59112)^2
$89$	$T^{4} + 601 T^{3} + \cdots + 556865604$ T^4 + 601T^3 + 384799T^2 - 14182398*T + 556865604
$97$	$T^{4} + \cdots + 1806048395449$ T^4 - 324T^3 + 1448869T^2 + 435421332*T + 1806048395449
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Elliptic curves over $\Q$
Elliptic curves over $\Q(\alpha)$
Genus 2 curves over $\Q$
Higher genus families
Abelian varieties over $\F_{q}$
Belyi maps

$f(q)$	$=$	$q - \beta_1 q^{2} - \beta_{2} q^{3} + (\beta_{3} + 10 \beta_{2} + \beta_1 - 11) q^{4} + ( - 9 \beta_{2} - \beta_1) q^{5} + (\beta_{3} + \beta_1 - 1) q^{6} + ( - 4 \beta_{3} + 12) q^{7} + ( - 3 \beta_{3} + 21) q^{8}+ \cdots + ( - 78 \beta_{3} + 468 \beta_{2} + \cdots - 390) q^{99}+O(q^{100})$ q - b1 * q^2 - b2 * q^3 + (b3 + 10b2 + b1 - 11) q^4 + (-9b2 - b1) q^5 + (b3 + b1 - 1) * q^6 + (-4b3 + 12) q^7 + (-3b3 + 21) q^8 + (-26b2 + 26) q^9 + (10b3 + 18b2 + 10b1 - 28) q^10 + (-3b3 - 15) q^11 + (-b3 + 11) * q^12 + (-5b3 + 53b2 - 5b1 - 48) q^13 + (-72b2 - 12b1) * q^14 + (b3 + 9b2 + b1 - 10) q^15 + (26b2 - 13b1) * q^16 + (27b2 + 21b1) * q^17 + (26b3 - 26) q^18 + (-19b1 + 19) q^19 + (-20b3 + 128) q^20 + (-8b2 - 4b1) * q^21 + (-54b2 + 15b1) * q^22 + (-17b3 + 9b2 - 17b1 + 8) q^23 + (-18b2 - 3b1) * q^24 + (19b3 - 26b2 + 19b1 + 7) q^25 + (-48b3 - 42) q^26 - 53 * q^27 + (52b3 + 152b2 + 52b1 - 204) q^28 + (41b3 - 63b2 + 41b1 + 22) q^29 + (-10b3 + 28) q^30 + (-6b3 + 14) q^31 + (-37b3 + 90b2 - 37b1 - 53) q^32 + (18b2 - 3b1) * q^33 + (-48b3 - 378b2 - 48b1 + 426) q^34 + (-144b2 - 48b1) * q^35 + (260b2 + 26b1) * q^36 + (36b3 + 206) q^37 + (19b3 + 342b2 - 361) * q^38 + (5b3 + 48) q^39 + (-216b2 - 48b1) * q^40 + (-63b2 + 2b1) * q^41 + (12b3 + 72b2 + 12b1 - 84) q^42 + (145b2 + 21b1) * q^43 + (15b3 - 126b2 + 15b1 + 111) q^44 + (26b3 - 260) q^45 + (8b3 - 314) q^46 + (-39b3 + 225b2 - 39b1 - 186) q^47 + (13b3 - 26b2 + 13b1 + 13) q^48 + (-80b3 + 89) q^49 + (7b3 + 335) q^50 + (-21b3 - 27b2 - 21b1 + 48) q^51 + (-440b2 + 2b1) * q^52 + (99b3 + 81b2 + 99b1 - 180) q^53 + 53b1 q^54 + (108b2 - 12b1) * q^55 + (-108b3 + 468) q^56 + (19b3 - 19b2 + 19b1 - 19) q^57 + (22b3 + 716) q^58 + (-153b2 + 102b1) * q^59 + (-108b2 - 20b1) * q^60 + (-7b3 + 269b2 - 7b1 - 262) q^61 + (-108b2 - 14b1) * q^62 + (-104b3 - 208b2 - 104b1 + 312) q^63 + (51b3 - 509) q^64 + (-3b3 + 390) q^65 + (-15b3 + 54b2 - 15b1 - 39) q^66 + (-162b3 + 359b2 - 162b1 - 197) q^67 + (258b3 - 906) q^68 + (17b3 - 8) q^69 + (192b3 + 864b2 + 192b1 - 1056) q^70 + (-783b2 + 3b1) * q^71 + (-78b3 - 468b2 - 78b1 + 546) q^72 + (73b2 + 88b1) * q^73 + (648b2 - 206b1) * q^74 + (-19b3 - 7) q^75 + (-190b3 + 190b2 + 19b1 + 342) q^76 + (36b3 + 36) q^77 + (90b2 - 48b1) * q^78 + (181b2 - 31b1) * q^79 + (104b3 + 104b1 - 104) * q^80 - 649b2 q^81 + (61b3 - 36b2 + 61b1 - 25) q^82 + (161b3 + 649) q^83 + (-52b3 + 204) q^84 + (-237b3 - 621b2 - 237b1 + 858) q^85 + (-166b3 - 378b2 - 166b1 + 544) q^86 + (-41b3 - 22) q^87 + (-9b3 - 153) q^88 + (79b3 + 261b2 + 79b1 - 340) q^89 + (468b2 + 260b1) * q^90 + (152b3 + 64b2 + 152b1 - 216) q^91 + (216b2 + 178b1) * q^92 + (-8b2 - 6b1) * q^93 + (-186b3 - 516) q^94 + (190b3 + 171b2 + 171b1 - 532) q^95 + (37b3 + 53) q^96 + (25b2 + 274b1) * q^97 + (-1440b2 - 89b1) * q^98 + (-78b3 + 468b2 - 78b1 - 390) q^99
$\operatorname{Tr}(f)(q)$	$=$	$4 q - q^{2} - 2 q^{3} - 21 q^{4} - 19 q^{5} - q^{6} + 40 q^{7} + 78 q^{8} + 52 q^{9} - 46 q^{10} - 66 q^{11} + 42 q^{12} - 101 q^{13} - 156 q^{14} - 19 q^{15} + 39 q^{16} + 75 q^{17} - 52 q^{18} + 57 q^{19}+ \cdots - 858 q^{99}+O(q^{100})$ 4 * q - q^2 - 2 * q^3 - 21 * q^4 - 19 * q^5 - q^6 + 40 * q^7 + 78 * q^8 + 52 * q^9 - 46 * q^10 - 66 * q^11 + 42 * q^12 - 101 * q^13 - 156 * q^14 - 19 * q^15 + 39 * q^16 + 75 * q^17 - 52 * q^18 + 57 * q^19 + 472 * q^20 - 20 * q^21 - 93 * q^22 - q^23 - 39 * q^24 + 33 * q^25 - 264 * q^26 - 212 * q^27 - 356 * q^28 + 85 * q^29 + 92 * q^30 + 44 * q^31 - 143 * q^32 + 33 * q^33 + 804 * q^34 - 336 * q^35 + 546 * q^36 + 896 * q^37 - 722 * q^38 + 202 * q^39 - 480 * q^40 - 124 * q^41 - 156 * q^42 + 311 * q^43 + 237 * q^44 - 988 * q^45 - 1240 * q^46 - 411 * q^47 + 39 * q^48 + 196 * q^49 + 1354 * q^50 + 75 * q^51 - 878 * q^52 - 261 * q^53 + 53 * q^54 + 204 * q^55 + 1656 * q^56 - 57 * q^57 + 2908 * q^58 - 204 * q^59 - 236 * q^60 - 531 * q^61 - 230 * q^62 + 520 * q^63 - 1934 * q^64 + 1554 * q^65 - 93 * q^66 - 556 * q^67 - 3108 * q^68 + 2 * q^69 - 1920 * q^70 - 1563 * q^71 + 1014 * q^72 + 234 * q^73 + 1090 * q^74 - 66 * q^75 + 1387 * q^76 + 216 * q^77 + 132 * q^78 + 331 * q^79 - 104 * q^80 - 1298 * q^81 + 11 * q^82 + 2918 * q^83 + 712 * q^84 + 1479 * q^85 + 922 * q^86 - 170 * q^87 - 630 * q^88 - 601 * q^89 + 1196 * q^90 - 280 * q^91 + 610 * q^92 - 22 * q^93 - 2436 * q^94 - 1235 * q^95 + 286 * q^96 + 324 * q^97 - 2969 * q^98 - 858 * q^99

$\beta_{1}$	$=$	$\nu$ v
$\beta_{2}$	$=$	$( -\nu^{3} + 19\nu^{2} - 19\nu + 324 ) / 342$ (-v^3 + 19v^2 - 19v + 324) / 342
$\beta_{3}$	$=$	$( \nu^{3} + 37 ) / 19$ (v^3 + 37) / 19

Introduction

L-functions

Modular forms

Varieties

Fields

Representations

Groups

Database

Properties

Related objects

Downloads

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Newspace parameters

Newform invariants

$q$ -expansion

Character values

Embeddings

Inner twists

Twists

Hecke kernels

Hecke characteristic polynomials

This project is supported by grants from the US National Science Foundation, the UK Engineering and Physical Sciences Research Council, and the Simons Foundation.

Label	19.4.c.b

Level	$19$
Weight	$4$
Character orbit	19.c
Analytic conductor	$1.121$
Analytic rank	$0$
Dimension	$4$
Inner twists	$2$

$\nu$	$=$	$\beta_1$ b1
$\nu^{2}$	$=$	$\beta_{3} + 18\beta_{2} + \beta _1 - 19$ b3 + 18*b2 + b1 - 19
$\nu^{3}$	$=$	$19\beta_{3} - 37$ 19*b3 - 37

$n$ :		e.g. 2-40 or 990-1000
Significant digits:
Format: