Properties

Label 34496cp2
Conductor 3449634496
Discriminant 1.179×1015-1.179\times 10^{15}
j-invariant 13278380032156590819 -\frac{13278380032}{156590819}
CM no
Rank 11
Torsion structure trivial

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Minimal Weierstrass equation

Minimal Weierstrass equation

Simplified equation

y2=x3x29669x+1695331y^2=x^3-x^2-9669x+1695331 Copy content Toggle raw display (homogenize, simplify)
y2z=x3x2z9669xz2+1695331z3y^2z=x^3-x^2z-9669xz^2+1695331z^3 Copy content Toggle raw display (dehomogenize, simplify)
y2=x3783216x+1233546678y^2=x^3-783216x+1233546678 Copy content Toggle raw display (homogenize, minimize)

comment: Define the curve
 
sage: E = EllipticCurve([0, -1, 0, -9669, 1695331])
 
gp: E = ellinit([0, -1, 0, -9669, 1695331])
 
magma: E := EllipticCurve([0, -1, 0, -9669, 1695331]);
 
oscar: E = elliptic_curve([0, -1, 0, -9669, 1695331])
 
sage: E.short_weierstrass_model()
 
magma: WeierstrassModel(E);
 
oscar: short_weierstrass_model(E)
 

Mordell-Weil group structure

Z\Z

magma: MordellWeilGroup(E);
 

Mordell-Weil generators

PPh^(P)\hat{h}(P)Order
(1686/25,144991/125)(1686/25, 144991/125)6.50470762847307057481623663886.5047076284730705748162366388\infty

Integral points

None

comment: Integral points
 
sage: E.integral_points()
 
magma: IntegralPoints(E);
 

Invariants

Conductor: NN  =  34496 34496  = 2672112^{6} \cdot 7^{2} \cdot 11
comment: Conductor
 
sage: E.conductor().factor()
 
gp: ellglobalred(E)[1]
 
magma: Conductor(E);
 
oscar: conductor(E)
 
Discriminant: Δ\Delta  =  1179056208929984-1179056208929984 = 126712113-1 \cdot 2^{6} \cdot 7^{12} \cdot 11^{3}
comment: Discriminant
 
sage: E.discriminant().factor()
 
gp: E.disc
 
magma: Discriminant(E);
 
oscar: discriminant(E)
 
j-invariant: jj  =  13278380032156590819 -\frac{13278380032}{156590819}  = 121876113373-1 \cdot 2^{18} \cdot 7^{-6} \cdot 11^{-3} \cdot 37^{3}
comment: j-invariant
 
sage: E.j_invariant().factor()
 
gp: E.j
 
magma: jInvariant(E);
 
oscar: j_invariant(E)
 
Endomorphism ring: End(E)\mathrm{End}(E) = Z\Z
Geometric endomorphism ring: End(EQ)\mathrm{End}(E_{\overline{\Q}})  =  Z\Z    (no potential complex multiplication)
sage: E.has_cm()
 
magma: HasComplexMultiplication(E);
 
Sato-Tate group: ST(E)\mathrm{ST}(E) = SU(2)\mathrm{SU}(2)
Faltings height: hFaltingsh_{\mathrm{Faltings}} ≈ 1.57383513975628001648383399771.5738351397562800164838339977
gp: ellheight(E)
 
magma: FaltingsHeight(E);
 
oscar: faltings_height(E)
 
Stable Faltings height: hstableh_{\mathrm{stable}} ≈ 0.254306474948650709222541565250.25430647494865070922254156525
magma: StableFaltingsHeight(E);
 
oscar: stable_faltings_height(E)
 
abcabc quality: QQ ≈ 1.06521683961209131.0652168396120913
Szpiro ratio: σm\sigma_{m} ≈ 4.0394045307319584.039404530731958

BSD invariants

Analytic rank: ranr_{\mathrm{an}} = 1 1
sage: E.analytic_rank()
 
gp: ellanalyticrank(E)
 
magma: AnalyticRank(E);
 
Mordell-Weil rank: rr = 1 1
comment: Rank
 
sage: E.rank()
 
gp: [lower,upper] = ellrank(E)
 
magma: Rank(E);
 
Regulator: Reg(E/Q)\mathrm{Reg}(E/\Q) ≈ 6.50470762847307057481623663886.5047076284730705748162366388
comment: Regulator
 
sage: E.regulator()
 
G = E.gen \\ if available
 
matdet(ellheightmatrix(E,G))
 
magma: Regulator(E);
 
Real period: Ω\Omega ≈ 0.413963627752226545401032545560.41396362775222654540103254556
comment: Real Period
 
sage: E.period_lattice().omega()
 
gp: if(E.disc>0,2,1)*E.omega[1]
 
magma: (Discriminant(E) gt 0 select 2 else 1) * RealPeriod(E);
 
Tamagawa product: pcp\prod_{p}c_p = 2 2  = 121 1\cdot2\cdot1
comment: Tamagawa numbers
 
sage: E.tamagawa_numbers()
 
gp: gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]
 
magma: TamagawaNumbers(E);
 
oscar: tamagawa_numbers(E)
 
Torsion order: #E(Q)tor\#E(\Q)_{\mathrm{tor}} = 11
comment: Torsion order
 
sage: E.torsion_order()
 
gp: elltors(E)[1]
 
magma: Order(TorsionSubgroup(E));
 
oscar: prod(torsion_structure(E)[1])
 
Special value: L(E,1) L'(E,1) ≈ 5.38542473470058903037589027985.3854247347005890303758902798
comment: Special L-value
 
r = E.rank();
 
E.lseries().dokchitser().derivative(1,r)/r.factorial()
 
gp: [r,L1r] = ellanalyticrank(E); L1r/r!
 
magma: Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12);
 
Analytic order of Ш: Шan{}_{\mathrm{an}}  ≈  11    (rounded)
comment: Order of Sha
 
sage: E.sha().an_numerical()
 
magma: MordellWeilShaInformation(E);
 

BSD formula

5.385424735L(E,1)=#Ш(E/Q)ΩEReg(E/Q)pcp#E(Q)tor210.4139646.5047082125.385424735\displaystyle 5.385424735 \approx L'(E,1) = \frac{\# Ш(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \approx \frac{1 \cdot 0.413964 \cdot 6.504708 \cdot 2}{1^2} \approx 5.385424735

# self-contained SageMath code snippet for the BSD formula (checks rank, computes analytic sha)
 
E = EllipticCurve(%s); r = E.rank(); ar = E.analytic_rank(); assert r == ar;
 
Lr1 = E.lseries().dokchitser().derivative(1,r)/r.factorial(); sha = E.sha().an_numerical();
 
omega = E.period_lattice().omega(); reg = E.regulator(); tam = E.tamagawa_product(); tor = E.torsion_order();
 
assert r == ar; print("analytic sha: " + str(RR(Lr1) * tor^2 / (omega * reg * tam)))
 
/* self-contained Magma code snippet for the BSD formula (checks rank, computes analytic sha) */
 
E := EllipticCurve(%s); r := Rank(E); ar,Lr1 := AnalyticRank(E: Precision := 12); assert r eq ar;
 
sha := MordellWeilShaInformation(E); omega := RealPeriod(E) * (Discriminant(E) gt 0 select 2 else 1);
 
reg := Regulator(E); tam := &*TamagawaNumbers(E); tor := #TorsionSubgroup(E);
 
assert r eq ar; print "analytic sha:", Lr1 * tor^2 / (omega * reg * tam);
 

Modular invariants

Modular form   34496.2.a.bn

qq3+3q52q9q114q133q15+6q172q19+O(q20) q - q^{3} + 3 q^{5} - 2 q^{9} - q^{11} - 4 q^{13} - 3 q^{15} + 6 q^{17} - 2 q^{19} + O(q^{20}) Copy content Toggle raw display

comment: q-expansion of modular form
 
sage: E.q_eigenform(20)
 
\\ actual modular form, use for small N
 
[mf,F] = mffromell(E)
 
Ser(mfcoefs(mf,20),q)
 
\\ or just the series
 
Ser(ellan(E,20),q)*q
 
magma: ModularForm(E);
 

For more coefficients, see the Downloads section to the right.

Modular degree: 138240
comment: Modular degree
 
sage: E.modular_degree()
 
gp: ellmoddegree(E)
 
magma: ModularDegree(E);
 
Γ0(N) \Gamma_0(N) -optimal: no
Manin constant: 1
comment: Manin constant
 
magma: ManinConstant(E);
 

Local data at primes of bad reduction

This elliptic curve is not semistable. There are 3 primes pp of bad reduction:

pp Tamagawa number Kodaira symbol Reduction type Root number ordp(N)\mathrm{ord}_p(N) ordp(Δ)\mathrm{ord}_p(\Delta) ordp(den(j))\mathrm{ord}_p(\mathrm{den}(j))
22 11 IIII additive -1 6 6 0
77 22 I6I_{6}^{*} additive -1 2 12 6
1111 11 I3I_{3} nonsplit multiplicative 1 1 3 3

comment: Local data
 
sage: E.local_data()
 
gp: ellglobalred(E)[5]
 
magma: [LocalInformation(E,p) : p in BadPrimes(E)];
 
oscar: [(p,tamagawa_number(E,p), kodaira_symbol(E,p), reduction_type(E,p)) for p in bad_primes(E)]
 

Galois representations

The \ell-adic Galois representation has maximal image for all primes \ell except those listed in the table below.

prime \ell mod-\ell image \ell-adic image
33 3Cs 3.12.0.1

comment: mod p Galois image
 
sage: rho = E.galois_representation(); [rho.image_type(p) for p in rho.non_surjective()]
 
magma: [GaloisRepresentation(E,p): p in PrimesUpTo(20)];
 

gens = [[262, 9, 873, 1378], [1, 18, 0, 1], [1, 9, 9, 82], [1387, 0, 0, 1], [1, 18, 0, 155], [5527, 18, 5526, 19], [1, 6, 6, 37], [1369, 18, 1368, 19], [2771, 0, 0, 5543], [1, 0, 18, 1], [1, 12, 0, 1], [7, 18, 1170, 463]]
 
GL(2,Integers(5544)).subgroup(gens)
 
Gens := [[262, 9, 873, 1378], [1, 18, 0, 1], [1, 9, 9, 82], [1387, 0, 0, 1], [1, 18, 0, 155], [5527, 18, 5526, 19], [1, 6, 6, 37], [1369, 18, 1368, 19], [2771, 0, 0, 5543], [1, 0, 18, 1], [1, 12, 0, 1], [7, 18, 1170, 463]];
 
sub<GL(2,Integers(5544))|Gens>;
 

The image H:=ρE(Gal(Q/Q))H:=\rho_E(\Gal(\overline{\Q}/\Q)) of the adelic Galois representation has level 5544=2332711 5544 = 2^{3} \cdot 3^{2} \cdot 7 \cdot 11 , index 144144, genus 33, and generators

(26298731378),(11801),(19982),(1387001),(1180155),(552718552619),(16637),(136918136819),(2771005543),(10181),(11201),(7181170463)\left(\begin{array}{rr} 262 & 9 \\ 873 & 1378 \end{array}\right),\left(\begin{array}{rr} 1 & 18 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 9 \\ 9 & 82 \end{array}\right),\left(\begin{array}{rr} 1387 & 0 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 18 \\ 0 & 155 \end{array}\right),\left(\begin{array}{rr} 5527 & 18 \\ 5526 & 19 \end{array}\right),\left(\begin{array}{rr} 1 & 6 \\ 6 & 37 \end{array}\right),\left(\begin{array}{rr} 1369 & 18 \\ 1368 & 19 \end{array}\right),\left(\begin{array}{rr} 2771 & 0 \\ 0 & 5543 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 18 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 12 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 7 & 18 \\ 1170 & 463 \end{array}\right).

Input positive integer mm to see the generators of the reduction of HH to GL2(Z/mZ)\mathrm{GL}_2(\Z/m\Z):

The torsion field K:=Q(E[5544])K:=\Q(E[5544]) is a degree-11036196864001103619686400 Galois extension of Q\Q with Gal(K/Q)\Gal(K/\Q) isomorphic to the projection of HH to GL2(Z/5544Z)\GL_2(\Z/5544\Z).

The table below list all primes \ell for which the Serre invariants associated to the mod-\ell Galois representation are exceptional.

\ell Reduction type Serre weight Serre conductor
22 additive 22 539=7211 539 = 7^{2} \cdot 11
33 good 22 3136=2672 3136 = 2^{6} \cdot 7^{2}
77 additive 3232 704=2611 704 = 2^{6} \cdot 11
1111 nonsplit multiplicative 1212 3136=2672 3136 = 2^{6} \cdot 7^{2}

Isogenies

gp: ellisomat(E)
 

This curve has non-trivial cyclic isogenies of degree dd for d=d= 3.
Its isogeny class 34496cp consists of 3 curves linked by isogenies of degrees dividing 9.

Twists

The minimal quadratic twist of this elliptic curve is 77b1, its twist by 5656.

Growth of torsion in number fields

The number fields KK of degree less than 24 such that E(K)torsE(K)_{\rm tors} is strictly larger than E(Q)torsE(\Q)_{\rm tors} (which is trivial) are as follows:

[K:Q][K:\Q] KK E(K)torsE(K)_{\rm tors} Base change curve
22 Q(14)\Q(\sqrt{14}) Z/3Z\Z/3\Z not in database
22 Q(42)\Q(\sqrt{-42}) Z/3Z\Z/3\Z not in database
33 3.1.44.1 Z/2Z\Z/2\Z not in database
44 Q(3,14)\Q(\sqrt{-3}, \sqrt{14}) Z/3ZZ/3Z\Z/3\Z \oplus \Z/3\Z not in database
66 6.0.21296.1 Z/2ZZ/2Z\Z/2\Z \oplus \Z/2\Z not in database
66 6.2.84998144.2 Z/6Z\Z/6\Z not in database
66 6.0.2294949888.2 Z/6Z\Z/6\Z not in database
1212 deg 12 Z/4Z\Z/4\Z not in database
1212 deg 12 Z/3ZZ/6Z\Z/3\Z \oplus \Z/6\Z not in database
1212 deg 12 Z/2ZZ/6Z\Z/2\Z \oplus \Z/6\Z not in database
1212 deg 12 Z/2ZZ/6Z\Z/2\Z \oplus \Z/6\Z not in database
1818 18.6.246867016309990766969886867456.2 Z/9Z\Z/9\Z not in database
1818 18.0.15249885484857819539861287961752888182998827008.2 Z/9Z\Z/9\Z not in database

We only show fields where the torsion growth is primitive. For fields not in the database, click on the degree shown to reveal the defining polynomial.

Iwasawa invariants

pp 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47
Reduction type add ord ord add nonsplit ord ord ord ord ord ord ord ord ord ss
λ\lambda-invariant(s) - 1 1 - 1 1 1 3 1 1 1 1 1 1 1,1
μ\mu-invariant(s) - 1 0 - 0 0 0 0 0 0 0 0 0 0 0,0

An entry - indicates that the invariants are not computed because the reduction is additive.

pp-adic regulators

pp-adic regulators are not yet computed for curves that are not Γ0\Gamma_0-optimal.